summaryrefslogtreecommitdiffstats
path: root/src/CHANGES.txt
blob: a95ae829dcc3e82abbd2b722bd3432bcbcf1d618 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
4905
4906
4907
4908
4909
4910
4911
4912
4913
4914
4915
4916
4917
4918
4919
4920
4921
4922
4923
4924
4925
4926
4927
4928
4929
4930
4931
4932
4933
4934
4935
4936
4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947
4948
4949
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
4968
4969
4970
4971
4972
4973
4974
4975
4976
4977
4978
4979
4980
4981
4982
4983
4984
4985
4986
4987
4988
4989
4990
4991
4992
4993
4994
4995
4996
4997
4998
4999
5000
5001
5002
5003
5004
5005
5006
5007
5008
5009
5010
5011
5012
5013
5014
5015
5016
5017
5018
5019
5020
5021
5022
5023
5024
5025
5026
5027
5028
5029
5030
5031
5032
5033
5034
5035
5036
5037
5038
5039
5040
5041
5042
5043
5044
5045
5046
5047
5048
5049
5050
5051
5052
5053
5054
5055
5056
5057
5058
5059
5060
5061
5062
5063
5064
5065
5066
5067
5068
5069
5070
5071
5072
5073
5074
5075
5076
5077
5078
5079
5080
5081
5082
5083
5084
5085
5086
5087
5088
5089
5090
5091
5092
5093
5094
5095
5096
5097
5098
5099
5100
5101
5102
5103
5104
5105
5106
5107
5108
5109
5110
5111
5112
5113
5114
5115
5116
5117
5118
5119
5120
5121
5122
5123
5124
5125
5126
5127
5128
5129
5130
5131
5132
5133
5134
5135
5136
5137
5138
5139
5140
5141
5142
5143
5144
5145
5146
5147
5148
5149
5150
5151
5152
5153
5154
5155
5156
5157
5158
5159
5160
5161
5162
5163
5164
5165
5166
5167
5168
5169
5170
5171
5172
5173
5174
5175
5176
5177
5178
5179
5180
5181
5182
5183
5184
5185
5186
5187
5188
5189
5190
5191
5192
5193
5194
5195
5196
5197
5198
5199
5200
5201
5202
5203
5204
5205
5206
5207
5208
5209
5210
5211
5212
5213
5214
5215
5216
5217
5218
5219
5220
5221
5222
5223
5224
5225
5226
5227
5228
5229
5230
5231
5232
5233
5234
5235
5236
5237
5238
5239
5240
5241
5242
5243
5244
5245
5246
5247
5248
5249
5250
5251
5252
5253
5254
5255
5256
5257
5258
5259
5260
5261
5262
5263
5264
5265
5266
5267
5268
5269
5270
5271
5272
5273
5274
5275
5276
5277
5278
5279
5280
5281
5282
5283
5284
5285
5286
5287
5288
5289
5290
5291
5292
5293
5294
5295
5296
5297
5298
5299
5300
5301
5302
5303
5304
5305
5306
5307
5308
5309
5310
5311
5312
5313
5314
5315
5316
5317
5318
5319
5320
5321
5322
5323
5324
5325
5326
5327
5328
5329
5330
5331
5332
5333
5334
5335
5336
5337
5338
5339
5340
5341
5342
5343
5344
5345
5346
5347
5348
5349
5350
5351
5352
5353
5354
5355
5356
5357
5358
5359
5360
5361
5362
5363
5364
5365
5366
5367
5368
5369
5370
5371
5372
5373
5374
5375
5376
5377
5378
5379
5380
5381
5382
5383
5384
5385
5386
5387
5388
5389
5390
5391
5392
5393
5394
5395
5396
5397
5398
5399
5400
5401
5402
5403
5404
5405
5406
5407
5408
5409
5410
5411
5412
5413
5414
5415
5416
5417
5418
5419
5420
5421
5422
5423
5424
5425
5426
5427
5428
5429
5430
5431
5432
5433
5434
5435
5436
5437
5438
5439
5440
5441
5442
5443
5444
5445
5446
5447
5448
5449
5450
5451
5452
5453
5454
5455
5456
5457
5458
5459
5460
5461
5462
5463
5464
5465
5466
5467
5468
5469
5470
5471
5472
5473
5474
5475
5476
5477
5478
5479
5480
5481
5482
5483
5484
5485
5486
5487
5488
5489
5490
5491
5492
5493
5494
5495
5496
5497
5498
5499
5500
5501
5502
5503


                 SCons - a software construction tool

                            Change Log


RELEASE 2.1.0.alpha.yyyymmdd - NEW DATE WILL BE INSERTED HERE

  From Justin Gullingsrud:
    - support -std=c++0x and related CXXFLAGS in pkgconfig (ParseFlags)

  From Vincent Beffara:
    - Support -dylib_file in pkgconfig (ParseFlags)

  From Gary Oberbrunner and Sohail Somani:
    - new construction variable WINDOWS_EMBED_MANIFEST to automatically
      embed manifests in Windows EXEs and DLLs.

  From Gary Oberbrunner:
    - Put RPATH in LINKCOM rather than LINKFLAGS so resetting
      LINKFLAGS doesn't kill RPATH
    - Fix precompiled headers on Windows when variant dir name has spaces.
    - Adding None to an Action no longer fails (just returns original action)
    - New --debug=prepare option to show each target as it's being
      prepared, whether or not anything needs to be done for it.
    - New debug option --debug=duplicate to print a line for each
      unlink/relink (or copy) of a variant file from its source file.
    - Improve error message for EnumVariables to show legal values.
    - Fix Intel compiler to sort versions >9 correctly (esp. on Linux)
    - Fix Install() when the source and target are directories and the
      target directory exists.
    
  From David Garcia Garzon:
    - Fix Delete to be able to delete broken symlinks and dir
      symlinks.
  
  From Robert Lehr:
    - Handle .output file generated by bison/yacc properly. Cleaning it
      when necessary.

  From Antoine Dechaume:
    - Handle SWIG file where there is whitespace after the module name
      properly. Previously the generated files would include 
      the whitespace.

  From Dmitry R.:
    - Handle Environment in case __semi_deepcopy is None

  From Benoit Belley:

    - Much improved support for Windows UNC paths (\\SERVERNAME).

  From Jean-Baptiste Lab:

    - Fix problems with appending CPPDEFINES that contain
      dictionaries, and related issues with Parse/MergeFlags and
      CPPDEFINES.

  From Allen Weeks:

    - Fix for an issue with implicit-cache with multiple targets
      when dependencies are removed on disk.

  From Evgeny Podjachev and Alexey Petruchick:

    - Support generation of Microsoft Visual Studio 2008 (9.0) 
      and 2010 (10.0) project and solution files.

  From Ken Deeter:

    - Fix a problem when FS Entries which are actually Dirs have builders.

  From Luca Falavigna:

    - Support Fortran 03

  From Gary Oberbrunner:

    - Print the path to the SCons package in scons --version

  From Jean-Fran�ois Colson:

    - Improve Microsoft Visual Studio Solution generation, and fix
      various errors in the generated solutions especially when using
      MSVS_SCC_PROVIDER, and when generating multiple projects.  The
      construction variable MSVS_SCC_PROJECT_BASE_PATH, which never
      worked properly, is removed.  Users can use the new variable
      MSVS_SCC_CONNECTION_ROOT instead if desired.

  From Anatoly Techtonik:

    - Use subprocess in bootstrap.py instead of os.execve to avoid
      losing output control on Windows (http://bugs.python.org/issue9148)

  From Alexander Goomenyuk:

    - Add .sx to assembly source scanner list so .sx files
      get their header file dependencies detected.

  From Arve Knudsen:

    - Set module metadata when loading site_scons/site_init.py
      so it is treated as a proper module; __doc__, __file__ and
      __name__ now refer to the site_init.py file.

  From Russel Winder:

    - Users Guide updates explaining that Tools can be packages as
      well as python modules.

  From Gary Oberbrunner:

    - New systemwide and per-user site_scons dirs.

  From Dirk Baechle:

    - XML fixes in User's Guide.

  From Joe Zuntz:

    - Fixed a case-sensitivity problem with Fortran modules.

  From Bauke Conijn:

    - Added Users Guide example for auto-generated source code

  From Steven Knight:

    - Fix explicit dependencies (Depends()) on Nodes that don't have
      attached Builders.

    - Fix use of the global Alias() function with command actions.

  From Matt Hughes:

    - Fix the ability to append to default $*FLAGS values (which are
      implemented as CLVar instances) in a copied construction environment
      without affecting the original construction environment's value.

  From Rob Managan:

    - Updated the TeX command strings to include a /D on Windows in
      case the new directory is on a different drive letter.

    - Fixed the LaTeX scanner so dependencies are found in commands that
      are broken across lines with a comment or have embedded spaces.

    - The TeX builders should now work with tex files that are generated
      by another program. Thanks to Hans-Martin von Gaudecker for
      isolating the cause of this bug.
      
    - Added support for INDEXSTYLE environment variable so makeindex can
      find style files.

    - Added support for the bibunits package so we call bibtex on all
      the bu*.aux files.

  From Russel Winder:

    - Add support for DMD version 2 (the phobos2 library).

  From William Deegan:

    - Add initial support for VS/VC 2010 (express and non-express versions)


RELEASE 2.0.1 - Mon, 15 Aug 2010 15:46:32 -0700

  From Dirk Baechle:

    - Fix XML in documentation.

  From Joe Zuntz:

    - Fixed a case-sensitivity problem with Fortran modules.

  From Bauke Conijn:

    - Added Users Guide example for auto-generated source code

  From Steven Knight:

    - Fix explicit dependencies (Depends()) on Nodes that don't have
      attached Builders.

  From Matt Hughes:

    - Fix the ability to append to default $*FLAGS values (which are
      implemented as CLVar instances) in a copied construction environment
      without affecting the original construction environment's value.

  From Rob Managan:

    - Updated the TeX command strings to include a /D on Windows in
      case the new directory is on a different drive letter.

    - Fixed the LaTeX scanner so dependencies are found in commands that
      are broken across lines with a comment or have embedded spaces.


RELEASE 2.0.0.final.0 - Mon, 14 Jun 2010 22:01:37 -0700

  From Dirk Baechle:

    - Fix XML in documentation.

  From Steven Knight:

    - Provide forward compatibility for the 'profile' module.

    - Provide forward compatibility for the 'pickle' module.

    - Provide forward compatibility for the 'io' module.

    - Provide forward compatibility for the 'queue' module.

    - Provide forward compatibility for the 'collections' module.

    - Provide forward compatibility for the 'builtins' module.

    - Provide forward compatibility for 'sys.intern()'.

    - Convert to os.walk() from of os.path.walk().

    - Remove compatibility logic no longer needed.

    - Add a '-3' option to runtest to print 3.x incompatibility warnings.

    - Convert old-style classes into new-style classes.

    - Fix "Ignoring corrupt sconsign entry" warnings when building
      in a tree with a pre-2.0 .sconsign file.

    - Fix propagation from environment of VS*COMNTOOLS to resolve issues 
      initializing MSVC/MSVS/SDK issues.

    - Handle detecting Visual C++ on Python verions with upper-case
      platform architectures like 'AMD64'.

  From W. Trevor King:

    - Revisions to README.

  From Greg Noel:

    - Apply numerous Python fixers to update code to more modern idioms.
      Find where fixers should be applied to code in test strings and
      apply the fixers there, too.

    - Write a fixer to convert string functions to string methods.

    - Modify the 'dict' fixer to be less conservative.

    - Modify the 'apply' fixer to handle more cases.

    - Create a modified 'types' fixer that converts types to 2.x
      equivalents rather than 3.x equivalents.

    - Write a 'division' fixer to highlight uses of the old-style
      division operator.  Correct usage where needed.

    - Add forward compatibility for the new 'memoryview' function
      (which replaces the 'buffer' function).

    - Add forward compatibility for the 'winreg' module.

    - Remove no-longer-needed 'platform' module.

    - Run tests with the '-3' option to Python 2.6 and clear up
      various reported incompatibilities.

    - Comb out code paths specialized to Pythons older than 2.4.

    - Update deprecation warnings; most now become mandatory.

    - Start deprecation cycle for BuildDir() and build_dir.

    - Start deprecation cycle for SourceCode() and related factories

    - Fixed a problem with is_Dict() not identifying some objects derived
      from UserDict.

  From Jim Randall:

    - Document the AllowSubstExceptions() function in the User's Guide.

  From William Deegan:

    - Migrate MSVC/MSVS/SDK improvements from 1.3 branch.


RELEASE 1.3.0 - Tue, 23 Mar 2010 21:44:19 -0400

  From Steven Knight:

    - Update man page and documentation.

  From William Deegan (plus minor patch from Gary Oberbrunner):

    - Support Visual Studio 8.0 Express

RELEASE 1.2.0.d20100306 - Sat, 06 Mar 2010 16:18:33 -0800

  From Luca Falavigna:

    - Fix typos in the man page.

  From Gottfried Ganssauge:

    - Support execution when SCons is installed via easy_install.

  From Steven Knight:

    - Make the messages for Configure checks of compilers consistent.

    - Issue an error message if a BUILDERS entry is not a Builder
      object or a callable wrapper.

  From Rob Managan:

    - Update tex builder to handle the case where a \input{foo}
      command tries to work with a directory named foo instead of the
      file foo.tex. The builder now ignores a directory and continues
      searching to find the correct file. Thanks to Lennart Sauerbeck
      for the test case and initial patch

      Also allow the \include of files in subdirectories when variantDir
      is used with duplicate=0. Previously latex would crash since
      the directory in which the .aux file is written was not created.
      Thanks to Stefan Hepp for finding this and part of the solution.

  From James Teh:
    - Patches to fix some issues using MS SDK V7.0

  From William Deegan:
    - Lots of testing and minor patches to handle mixed MS VC and SDK
      installations, as well as having only the SDK installed.


RELEASE 1.2.0.d20100117 - Sun, 17 Jan 2010 14:26:59 -0800

  From Jim Randall:
    - Fixed temp filename race condition on Windows with long cmd lines.

  From David Cournapeau:
    - Fixed tryRun when sconf directory is in a variant dir.
    - Do not add -fPIC for ifort tool on non-posix platforms (darwin and
      windows).
    - Fix bug 2294 (spurious CheckCC failures).
    - Fix scons bootstrap process on windows 64 (wrong wininst name)

  From William Deegan:
    - Final merge from vs_revamp branch to main

    - Added definition and usage of HOST_OS, HOST_ARCH, TARGET_OS,
      TARGET_ARCH, currently only defined/used by Visual Studio
      Compilers. This will be rolled out to other platforms/tools
      in the future.

    - Add check for python >= 3.0.0 and exit gracefully.
      For 1.3 python >= 1.5.2 and < 3.0.0 are supported

    - Fix bug 1944 - Handle non-existent .i file in swig emitter, previously
      it would crash with an IOError exception. Now it will try to make an
      educated guess on the module name based on the filename.

  From Lukas Erlinghagen:

    - Have AddOption() remove variables from the list of
      seen-but-unknown variables (which are reported later).

    - An option name and aliases can now be specified as a tuple.

  From Hartmut Goebel:

    - Textfile builder.

  From Jared Grubb:

    - use "is/is not" in comparisons with None instead of "==" or "!=".

  From Jim Hunziker:

    - Avoid adding -gphobos to a command line multiple times
      when initializing use of the DMD compiler.

  From Jason Kenney:

    - Sugguested HOST/TARGET OS/ARCH separation.

  From Steven Knight:

    - Fix the -n option when used with VariantDir(duplicate=1)
      and the variant directory doesn't already exist.

    - Fix scanning of Unicode files for both UTF-16 endian flavors.

    - Fix a TypeError on #include of file names with Unicode characters.

    - Fix an exception if a null command-line argument is passed in.

    - Evaluate Requires() prerequisites before a Node's direct children
      (sources and dependencies).

  From Greg Noel:

    - Remove redundant __metaclass__ initializations in Environment.py.

    - Correct the documentation of text returned by sconf.Result().

    - Document that filenames with '.' as the first character are
      ignored by Glob() by default (matching UNIX glob semantics).

    - Fix SWIG testing infrastructure to work on Mac OS X.

    - Restructure a test that occasionally hung so that the test would
      detect when it was stuck and fail instead.

    - Substfile builder.

  From Gary Oberbrunner:

    - When reporting a target that SCons doesn't know how to make,
      specify whether it's a File, Dir, etc.

  From Ben Webb:

    - Fix use of $SWIGOUTDIR when generating Python wrappers.

    - Add $SWIGDIRECTORSUFFIX and $SWIGVERSION construction variables.

  From Rob Managan:

    - Add -recorder flag to Latex commands and updated internals to
      use the output to find files TeX creates. This allows the MiKTeX
      installations to find the created files

    - Notify user of Latex errors that would get buried in the
      Latex output

    - Remove LATEXSUFFIXES from environments that don't initialize Tex.

    - Add support for the glossaries package for glossaries and acronyms

    - Fix problem that pdftex, latex, and pdflatex tools by themselves did
      not create the actions for bibtex, makeindex,... by creating them
      and other environment settings in one routine called by all four
      tex tools.

    - Fix problem with filenames of sideeffects when the user changes
      the name of the output file from the latex default

    - Add scanning of files included in Latex by means of \lstinputlisting{}
      Patch from Stefan Hepp.

    - Change command line for epstopdf to use --outfile= instead of -o
      since this works on all platforms.
      Patch from Stefan Hepp.

    - Change scanner to properly search for included file from the
      directory of the main file instead of the file it is included from.
      Also update the emitter to add the .aux file associated with
      \include{filename} commands. This makes sure the required directories
      if any are created for variantdir cases.
      Half of the patch from Stefan Hepp.

RELEASE 1.2.0.d20090223 - Mon, 23 Feb 2009 08:41:06 -0800

  From Stanislav Baranov:

    - Make suffix-matching for scanners case-insensitive on Windows.

  From David Cournapeau:

    - Change the way SCons finds versions of Visual C/C++ and Visual
      Studio to find and use the Microsoft v*vars.bat files.

  From Robert P. J. Day:

    - User's Guide updates.

  From Dan Eaton:

    - Fix generation of Visual Studio 8 project files on x64 platforms.

  From Allan Erskine:

    - Set IncludeSearchPath and PreprocessorDefinitions in generated
      Visual Studio 8 project files, to help IntelliSense work.

  From Mateusz Gruca:

    - Fix deletion of broken symlinks by the --clean option.

  From Steven Knight:

    - Fix the error message when use of a non-existent drive on Windows
      is detected.

    - Add sources for files whose targets don't exist in $CHANGED_SOURCES.

    - Detect implicit dependencies on commands even when the command is
      quoted.

    - Fix interaction of $CHANGED_SOURCES with the --config=force option.

    - Fix finding #include files when the string contains escaped
      backslashes like "C:\\some\\include.h".

    - Pass $CCFLAGS to Visual C/C++ precompiled header compilation.

    - Remove unnecessary nested $( $) around $_LIBDIRFLAGS on link lines
      for the Microsoft linker, the OS/2 ilink linker and the Phar Lap
      linkloc linker.

    - Spell the Windows environment variables consistently "SystemDrive"
      and "SystemRoot" instead of "SYSTEMDRIVE" and "SYSTEMROOT".



RELEASE 1.2.0.d20090113 - Tue, 13 Jan 2009 02:50:30 -0800

  From Stanislav Baranov, Ted Johnson and Steven Knight:

    - Add support for batch compilation of Visual Studio C/C++ source
      files, controlled by a new $MSVC_BATCH construction variable.

  From Steven Knight:

    - Print the message, "scons: Build interrupted." on error output,
      not standard output.

    - Add a --warn=future-deprecated option for advance warnings about
      deprecated features that still have warnings hidden by default.

    - Fix use of $SOURCE and $SOURCES attributes when there are no
      sources specified in the Builder call.

    - Add support for new $CHANGED_SOURCES, $CHANGED_TARGETS,
      $UNCHANGED_SOURCES and $UNCHANGED_TARGETS variables.

    - Add general support for batch builds through new batch_key= and
      targets= keywords to Action object creation.

  From Arve Knudsen:

    - Make linker tools differentiate properly between SharedLibrary
      and LoadableModule.

    - Document TestCommon.shobj_prefix variable.

    - Support $SWIGOUTDIR values with spaces.

  From Rob Managan:

    - Don't automatically try to build .pdf graphics files for
      .eps files in \includegraphics{} calls in TeX/LaTeX files
      when building with the PDF builder (and thus using pdflatex).

  From Gary Oberbrunner:

    - Allow AppendENVPath() and PrependENVPath() to interpret '#'
      for paths relative to the top-level SConstruct directory.

    - Use the Borland ilink -e option to specify the output file name.

    - Document that the msvc Tool module uses $PCH, $PCHSTOP and $PDB.

    - Allow WINDOWS_INSERT_DEF=0 to disable --output-def when linking
      under MinGW.

  From Zia Sobhani:

    - Fix typos in the User's Guide.

  From Greg Spencer:

    - Support implicit dependency scanning of files encoded in utf-8
      and utf-16.

  From Roberto de Vecchi:

    - Remove $CCFLAGS from the the default definitions of $CXXFLAGS for
      Visual C/C++ and MIPSpro C++ on SGI so, they match other tools
      and avoid flag duplication on C++ command lines.

  From Ben Webb:

    - Handle quoted module names in SWIG source files.

    - Emit *_wrap.h when SWIG generates header file for directors

  From Matthew Wesley:

    - Copy file attributes so we identify, and can link a shared library
      from, shared object files in a Repository.



RELEASE 1.2.0 - Sat, 20 Dec 2008 22:47:29 -0800

  From Steven Knight:

    - Don't fail if can't import a _subprocess module on Windows.

    - Add warnings for use of the deprecated Options object.



RELEASE 1.1.0.d20081207 - Sun, 07 Dec 2008 19:17:23 -0800

  From Benoit Belley:

    - Improve the robustness of GetBuildFailures() by refactoring
      SCons exception handling (especially BuildError exceptions).

    - Have the --taskmastertrace= option print information about
      individual Task methods, not just the Taskmaster control flow.

    - Eliminate some spurious dependency cycles by being more aggressive
      about pruning pending children from the Taskmaster walk.

    - Suppress mistaken reports of a dependency cycle when a child
      left on the pending list is a single Node in EXECUTED state.

  From David Cournapeau:

    - Fix $FORTRANMODDIRPREFIX for the ifort (Intel Fortran) tool.

  From Brad Fitzpatrick:

    - Don't pre-generate an exception message (which will likely be
      ignored anyway) when an EntryProxy re-raises an AttributeError.

  From Jared Grubb:

    - Clean up coding style and white space in Node/FS.py.

    - Fix a typo in the documentation for $_CPPDEFFLAGS.

    - Issue 2401: Fix usage of comparisons with None.

  From Ludwig H�hne:

    - Handle Java inner classes declared within a method.

  From Steven Knight:

    - Fix label placement by the "scons-time.py func" subcommand
      when a profile value was close to (or equal to) 0.0.

    - Fix env.Append() and env.Prepend()'s ability to add a string to
      list-like variables like $CCFLAGS under Python 2.6.

    - Other Python2.6 portability:  don't use "as" (a Python 2.6 keyword).
      Don't use the deprecated Exception.message attribute.

    - Support using the -f option to search for a different top-level
      file name when walking up with the -D, -U or -u options.

    - Fix use of VariantDir when the -n option is used and doesn't,
      therefore, actually create the variant directory.

    - Fix a stack trace from the --debug=includes option when passed a
      static or shared library as an argument.

    - Speed up the internal find_file() function (used for searching
      CPPPATH, LIBPATH, etc.).

    - Add support for using the Python "in" keyword on construction
      environments (for example, if "CPPPATH" in env: ...).

    - Fix use of Glob() when a repository or source directory contains
      an in-memory Node without a corresponding on-disk file or directory.

    - Add a warning about future reservation of $CHANGED_SOURCES,
      $CHANGED_TARGETS, $UNCHANGED_SOURCES and $UNCHANGED_TARGETS.

    - Enable by default the existing warnings about setting the resource
      $SOURCE, $SOURCES, $TARGET and $TARGETS variable.

  From Rob Managan:

    - Scan for TeX files in the paths specified in the $TEXINPUTS
      construction variable and the $TEXINPUTS environment variable.

    - Configure the PDF() and PostScript() Builders as single_source so
      they know each source file generates a separate target file.

    - Add $EPSTOPDF, $EPSTOPDFFLAGS and $EPSTOPDFCOM

    - Add .tex as a valid extension for the PDF() builder.

    - Add regular expressions to find \input, \include and
      \includegraphics.

    - Support generating a .pdf file from a .eps source.

    - Recursive scan included input TeX files.

    - Handle requiring searched-for TeX input graphics files to have
      extensions (to avoid trying to build a .eps from itself, e.g.).

  From Greg Noel:

    - Make the Action() function handle positional parameters consistently.

    - Clarify use of Configure.CheckType().

    - Make the File.{Dir,Entry,File}() methods create their entries
      relative to the calling File's directory, not the SConscript
      directory.

    - Use the Python os.devnull variable to discard error output when
      looking for the $CC or $CXX version.

    - Mention LoadableModule() in the SharedLibrary() documentation.

  From Gary Oberbrunner:

    - Update the User's Guide to clarify use of the site_scons/
      directory and the site_init.py module.

    - Make env.AppendUnique() and env.PrependUnique remove duplicates
      within a passed-in list being added, too.

  From Randall Spangler:

    - Fix Glob() so an on-disk file or directory beginning with '#'
      doesn't throw an exception.



RELEASE 1.1.0 - Thu, 09 Oct 2008 08:33:47 -0700

  From Chris AtLee

    - Use the specified environment when checking for the GCC compiler
      version.

  From Ian P. Cardenas:

    - Fix Glob() polluting LIBPATH by returning copy of list

  From David Cournapeau:

    - Add CheckCC, CheckCXX, CheckSHCC and CheckSHCXX tests to
      configuration contexts.

    - Have the --profile= argument use the much faster cProfile module
      (if it's available in the running Python version).

    - Reorder MSVC compilation arguments so the /Fo is first.

  From Bill Deegan:

    - Add scanning Windows resource (.rc) files for implicit dependencies.

  From John Gozde:

    - When scanning for a #include file, don't use a directory that
      has the same name as the file.

  From Ralf W. Grosse-Kunstleve

    - Suppress error output when checking for the GCC compiler version.

  From Jared Grubb:

    - Fix VariantDir duplication of #included files in subdirectories.

  From Ludwig H�hne:

    - Reduce memory usage when a directory is used as a dependency of
      another Node (such as an Alias) by returning a concatenation
      of the children's signatures + names, not the children's contents,
      as the directory contents.

    - Raise AttributeError, not KeyError, when a Builder can't be found.

    - Invalidate cached Node information (such as the contenst returned
      by the get_contents() method) when calling actions with Execute().

    - Avoid object reference cycles from frame objects.

    - Reduce memory usage from Null Executor objects.

    - Compute MD5 checksums of large files without reading the entire
      file contents into memory.  Add a new --md5-chunksize option to
      control the size of each chunk read into memory.

  From Steven Knight:

    - Fix the ability of the add_src_builder() method to add a new
      source builder to any other builder.

    - Avoid an infinite loop on non-Windows systems trying to find the
      SCons library directory if the Python library directory does not
      begin with the string "python".

    - Search for the SCons library directory in "scons-local" (with
      no version number) after "scons-local-{VERSION}".

  From Rob Managan:

    - Fix the user's ability to interrupt the TeX build chain.

    - Fix the TeX builder's allowing the user to specify the target name,
      instead of always using its default output name based on the source.

    - Iterate building TeX output files until all warning are gone
      and the auxiliary files stop changing, or until we reach the
      (configurable) maximum number of retries.

    - Add TeX scanner support for:  glossaries, nomenclatures, lists of
      figures, lists of tables, hyperref and beamer.

    - Use the $BIBINPUTS, $BSTINPUTS, $TEXINPUTS and $TEXPICTS construction
      variables as search paths for the relevant types of input file.

    - Fix building TeX with VariantDir(duplicate=0) in effect.

    - Fix the LaTeX scanner to search for graphics on the TEXINPUTS path.

    - Have the PDFLaTeX scanner search for .gif files as well.

  From Greg Noel:

    - Fix typos and format bugs in the man page.

    - Add a first draft of a wrapper module for Python's subprocess
      module.

    - Refactor use of the SCons.compat module so other modules don't
      have to import it individually.

    - Add .sx as a suffix for assembly language files that use the
      C preprocessor.

  From Gary Oberbrunner:

    - Make Glob() sort the returned list of Files or Nodes
      to prevent spurious rebuilds.

    - Add a delete_existing keyword argument to the AppendENVPath()
      and PrependENVPath() Environment methods.

    - Add ability to use "$SOURCE" when specifying a target to a builder

  From Damyan Pepper:

    - Add a test case to verify that SConsignFile() files can be
      created in previously non-existent subdirectories.

  From Jim Randall:

    - Make the subdirectory in which the SConsignFile() file will
      live, if the subdirectory doesn't already exist.

  From Ali Tofigh:

    - Add a test to verify duplication of files in VariantDir subdirectories.



RELEASE 1.0.1 - Sat, 06 Sep 2008 07:29:34 -0700

  From Greg Noel:

    - Add a FindFile() section to the User's Guide.

    - Fix the FindFile() documentation in the man page.

    - Fix formatting errors in the Package() description in the man page.

    - Escape parentheses that appear within variable names when spawning
      command lines using os.system().



RELEASE 1.0.0 - XXX

  From Jared Grubb:

    - Clear the Node state when turning a generic Entry into a Dir.

  From Ludwig H�hne:

    - Fix sporadic output-order failures in test/GetBuildFailures/parallel.py.

    - Document the ParseDepends() function in the User's Guide.

  From khomenko:

    - Create a separate description and long_description for RPM packages.

  From Steven Knight:

    - Document the GetLaunchDir() function in the User's Guide.

    - Have the env.Execute() method print an error message if the
      executed command fails.

    - Add a script for creating a standard SCons development system on
      Ubuntu Hardy.  Rewrite subsidiary scripts for install Python and
      SCons versions in Python (from shell).

  From Greg Noel:

    - Handle yacc/bison on newer Mac OS X versions creating file.hpp,
      not file.cpp.h.

    - In RPCGEN tests, ignore stderr messages from older versions of
      rpcgen on some versions of Mac OS X.

    - Fix typos in man page descriptions of Tag() and Package(), and in
      the scons-time man page.

    - Fix documentation of SConf.CheckLibWithHeader and other SConf methods.

    - Update documentation of SConscript(variant_dir) usage.

    - Fix SWIG tests for (some versions of) Mac OS X.

  From Jonas Olsson:

    - Print the warning about -j on Windows being potentially unreliable if
      the pywin32 extensions are unavailable or lack file handle operations.

  From Jim Randall:

    - Fix the env.WhereIs() method to expand construction variables.

  From Rogier Schouten:

    - Enable building of shared libraries with the Bordand ilink32 linker.



RELEASE 1.0.0 - Sat, 09 Aug 2008 12:19:44 -0700

  From Luca Falavigna:

    - Fix SCons man page indentation under Debian's man page macros.

  From Steven Knight:

    - Clarify the man page description of the SConscript(src_dir) argument.

    - User's Guide updates:

       -  Document the BUILD_TARGETS, COMMAND_LINE_TARGETS and
          DEFAULT_TARGETS variables.

       -  Document the AddOption(), GetOption() and SetOption() functions.

       -  Document the Requires() function; convert to the Variables
          object, its UnknownOptions() method, and its associated
          BoolVariable(), EnumVariable(), ListVariable(), PackageVariable()
          and PathVariable() functions.

       -  Document the Progress() function.

       -  Reorganize the chapter and sections describing the different
          types of environments and how they interact.  Document the
          SetDefault() method.  Document the PrependENVPath() and
          AppendENVPath() functions.

       -  Reorganize the command-line arguments chapter.  Document the
          ARGLIST variable.

       -  Collect some miscellaneous sections into a chapter about
          configuring build output.

    - Man page updates:

       -  Document suggested use of the Visual C/C++ /FC option to fix
          the ability to double-click on file names in compilation error
          messages.

       -  Document the need to use Clean() for any SideEffect() files that
          must be explicitly removed when their targets are removed.

       -  Explicitly document use of Node lists as input to Dependency().

  From Greg Noel:

    - Document MergeFlags(), ParseConfig(), ParseFlags() and SideEffect()
      in the User's Guide.

  From Gary Oberbrunner:

    - Document use of the GetBuildFailures() function in the User's Guide.

  From Adam Simpkins:

    - Add man page text clarifying the behavior of AddPreAction() and
      AddPostAction() when called with multiple targets.

  From Alexey Zezukin:

    - Fix incorrectly swapped man page descriptions of the --warn= options
      for duplicate-environment and missing-sconscript.



RELEASE 0.98.5 - Sat, 07 Jun 2008 08:20:35 -0700

  From Benoit Belley:

  - Fix the Intel C++ compiler ABI specification for EMT64 processors.

  From David Cournapeau:

  - Issue a (suppressable) warning, not an error, when trying to link
    C++ and Fortran object files into the same executable.

  From Steven Knight:

  - Update the scons.bat file so that it returns the real exit status
    from SCons, even though it uses setlocal + endlocal.

  - Fix the --interactive post-build messages so it doesn't get stuck
    mistakenly reporting failures after any individual build fails.

  - Fix calling File() as a File object method in some circumstances.

  - Fix setup.py installation on Mac OS X so SCons gets installed
    under /usr/lcoal by default, not in the Mac OS X Python framework.



RELEASE 0.98.4 - Sat, 17 May 2008 22:14:46 -0700

  From Benoit Belley:

  - Fix calculation of signatures for Python function actions with
    closures in Python versions before 2.5.

  From David Cournapeau:

  - Fix the initialization of $SHF77FLAGS so it includes $F77FLAGS.

  From Jonas Olsson:

  - Fix a syntax error in the Intel C compiler support on Windows.

  From Steven Knight:

  - Change how we represent Python Value Nodes when printing and when
    stored in .sconsign files (to avoid blowing out memory by storing
    huge strings in .sconsign files after multiple runs using Configure
    contexts cause the Value strings to be re-escaped each time).

  - Fix a regression in not executing configuration checks after failure
    of any configuration check that used the same compiler or other tool.

  - Handle multiple destinations in Visual Studio 8 settings for the
    analogues to the INCLUDE, LIBRARY and PATH variables.

  From Greg Noel:

  - Update man page text for VariantDir().



RELEASE 0.98.3 - Tue, 29 Apr 2008 22:40:12 -0700

  From Greg Noel:

  - Fix use of $CXXFLAGS when building C++ shared object files.

  From Steven Knight:

  - Fix a regression when a Builder's source_scanner doesn't select
    a more specific scanner for the suffix of a specified source file.

  - Fix the Options object backwards compatibility so people can still
    "import SCons.Options.{Bool,Enum,List,Package,Path}Option" submodules.

  - Fix searching for implicit dependencies when an Entry Node shows up
    in the search path list.

  From Stefano:

  - Fix expansion of $FORTRANMODDIR in the default Fortran command line(s)
    when it's set to something like ${TARGET.dir}.



RELEASE 0.98.2 - Sun, 20 Apr 2008 23:38:56 -0700

  From Steven Knight:

  - Fix a bug in Fortran suffix computation that would cause SCons to
    run out of memory on Windows systems.

  - Fix being able to specify --interactive mode command lines with
    \ (backslash) path name separators on Windows.

  From Gary Oberbrunner:

  - Document Glob() in the User's Guide.



RELEASE 0.98.1 - Fri, 18 Apr 2008 19:11:58 -0700

  From Benoit Belley:

  - Speed up the SCons.Util.to_string*() functions.

  - Optimize various Node intialization and calculations.

  - Optimize Executor scanning code.

  - Optimize Taskmaster execution, including dependency-cycle checking.

  - Fix the --debug=stree option so it prints its tree once, not twice.

  From Johan Boul�:

  - Fix the ability to use LoadableModule() under MinGW.

  From David Cournapeau:

  - Various missing Fortran-related construction variables have been added.

  - SCons now uses the program specified in the $FORTRAN construction
    variable to link Fortran object files.

  - Fortran compilers on Linux (Intel, g77 and gfortran) now add the -fPIC
    option by default when compilling shared objects.

  - New 'sunf77', 'sunf90' and 'sunf95' Tool modules have been added to
    support Sun Fortran compilers.  On Solaris, the Sun Fortran compilers
    are used in preference to other compilers by default.

  - Fortran support now uses gfortran in preference to g77.

  - Fortran file suffixes are now configurable through the
    $F77FILESUFFIXES, $F90FILESUFFIXES, $F95FILESUFFIXES and
    $FORTRANFILESUFFIXES variables.

  From Steven Knight:

  - Make the -d, -e, -w and --no-print-directory options "Ignored for
    compatibility."  (We're not going to implement them.)

  - Fix a serious inefficiency in how SCons checks for whether any source
    files are missing when a Builder call creates many targets from many
    input source files.

  - In Java projects, make the target .class files depend only on the
    specific source .java files where the individual classes are defined.

  - Don't store duplicate source file entries  in the .sconsign file so
    we don't endlessly rebuild the target(s) for no reason.

  - Add a Variables object as the first step towards deprecating the
    Options object name.  Similarly, add BoolVariable(), EnumVariable(),
    ListVariable(), PackageVariable() and PathVariable() functions
    as first steps towards replacing BoolOption(), EnumOption(),
    ListOption(), PackageOption() and PathOption().

  - Change the options= keyword argument to the Environment() function
    to variables=, to avoid confusion with SCons command-line options.
    Continue supporting the options= keyword for backwards compatibility.

  - When $SWIGFLAGS contains the -python flag, expect the generated .py
    file to be in the same (sub)directory as the target.

  - When compiling C++ files, allow $CCFLAGS settings to show up on the
    command line even when $CXXFLAGS has been redefined.

  - Fix --interactive with -u/-U/-D when a VariantDir() is used.

  From Anatoly Techtonik:

  - Have the scons.bat file add the script execution directory to its
    local %PATH% on Windows, so the Python executable can be found.

  From Mike Wake:

  - Fix passing variable names as a list to the Return() function.

  From Matthew Wesley:

  - Add support for the GDC 'D' language compiler.



RELEASE 0.98 - Sun, 30 Mar 2008 23:33:05 -0700

  From Benoit Belley:

  - Fix the --keep-going flag so it builds all possible targets even when
    a later top-level target depends on a child that failed its build.

  - Fix being able to use $PDB and $WINDWOWS_INSERT_MANIFEST together.

  - Don't crash if un-installing the Intel C compiler leaves left-over,
    dangling entries in the Windows registry.

  - Improve support for non-standard library prefixes and suffixes by
    stripping all prefixes/suffixes from file name string as appropriate.

  - Reduce the default stack size for -j worker threads to 256 Kbytes.
    Provide user control over this value by adding --stack-size and
    --warn=stack-size options, and a SetOption('stack_size') function.

  - Fix a crash on Linux systems when trying to use the Intel C compiler
    and no /opt/intel_cc_* directories are found.

  - Improve using Python functions as actions by incorporating into
    a FunctionAction's signature:
      - literal values referenced by the byte code.
      - values of default arguments
      - code of nested functions
      - values of variables captured by closures
      - names of referenced global variables and functions

  - Fix the closing message when --clean and --keep-going are both
    used and no errors occur.

  - Add support for the Intel C compiler on Mac OS X.

  - Speed up reading SConscript files by about 20% (for some
    configurations) by:  1) optimizing the SCons.Util.is_*() and
    SCons.Util.flatten() functions; 2) avoiding unnecessary os.stat()
    calls by using a File's .suffix attribute directly instead of
    stringifying it.

  From Jérôme Berger:

  - Have the D language scanner search for .di files as well as .d files.

  - Add a find_include_names() method to the Scanner.Classic class to
    abstract out how included names can be generated by subclasses.

  - Allow the D language scanner to detect multiple modules imported by
    a single statement.

  From Konstantin Bozhikov:

  - Support expansion of construction variables that contain or refer
    to lists of other variables or Nodes within expansions like $CPPPATH.

  - Change variable substitution (the env.subst() method) so that an
    input sequence (list or tuple) is preserved as a list in the output.

  From David Cournapeau:

  - Add a CheckDeclaration() call to configure contexts.

  - Improve the CheckTypeSize() code.

  - Add a Define() call to configure contexts, to add arbitrary #define
    lines to a generated configure header file.

  - Add a "gfortran" Tool module for the GNU F95/F2003 compiler.

  - Avoid use of -rpath with the Mac OS X linker.

  - Add comment lines to the generated config.h file to describe what
    the various #define/#undef lines are doing.

  From Steven Knight:

  - Support the ability to subclass the new-style "str" class as input
    to Builders.

  - Improve the performance of our type-checking by using isinstance()
    with new-style classes.

  - Fix #include (and other $*PATH variables searches) of files with
    absolute path names.  Don't die if they don't exist (due to being
    #ifdef'ed out or the like).

  - Fix --interactive mode when Default(None) is used.

  - Fix --debug=memoizer to work around a bug in base Python 2.2 metaclass
    initialization (by just not allowing Memoization in Python versions
    that have the bug).

  - Have the "scons-time time" subcommand handle empty log files, and
    log files that contain no results specified by the --which option.

  - Fix the max Y of vertical bars drawn by "scons-time --fmt=gnuplot".

  - On Mac OS X, account for the fact that the header file generated
    from a C++ file will be named (e.g.) file.cpp.h, not file.hpp.

  - Fix floating-point numbers confusing the Java parser about
    generated .class file names in some configurations.

  - Document (nearly) all the values you can now fetch with GetOption().

  - Fix use of file names containing strings of multiple spaces when
    using ActionFactory instances like the Copy() or Move() function.

  - Fix a 0.97 regression when using a variable expansion (like
    $OBJSUFFIX) in a source file name to a builder with attached source
    builders that match suffix (like Program()+Object()).

  - Have the Java parser recognize generics (surrounded by angle brackets)
    so they don't interfere with identifying anonymous inner classes.

  - Avoid an infinite loop when trying to use saved copies of the
    env.Install() or env.InstallAs() after replacing the method
    attributes.

  - Improve the performance of setting construction variables.

  - When cloning a construction environment, avoid over-writing an
    attribute for an added method if the user explicitly replaced it.

  - Add a warning about deprecated support for Python 1.5, 2.0 and 2.1.

  - Fix being able to SetOption('warn', ...) in SConscript files.

  - Add a warning about env.Copy() being deprecated.

  - Add warnings about the --debug={dtree,stree,tree} options
    being deprecated.

  - Add VariantDir() as the first step towards deprecating BuildDir().
    Add the keyword argument "variant_dir" as the replacement for
    "build_dir".

  - Add warnings about the {Target,Source}Signatures() methods and
    functions being deprecated.

  From Rob Managan:

  - Enhance TeX and LaTeX support to work with BuildDir(duplicate=0).

  - Re-run LaTeX when it issues a package warning that it must be re-run.

  From Leanid Nazdrynau:

  - Have the Copy() action factory preserve file modes and times
    when copying individual files.

  From Jan Nijtmans:

  - If $JARCHDIR isn't set explicitly, use the .java_classdir attribute
    that was set when the Java() Builder built the .class files.

  From Greg Noel:

  - Document the Dir(), File() and Entry() methods of Dir and File Nodes.

  - Add the parse_flags option when creating Environments

  From Gary Oberbrunner:

  - Make File(), Dir() and Entry() return a list of Nodes when passed
    a list of names, instead of trying to make a string from the name
    list and making a Node from that string.

  - Fix the ability to build an Alias in --interactive mode.

  - Fix the ability to hash the contents of actions for nested Python
    functions on Python versions where the inability to pickle them
    returns a TypeError (instead of the documented PicklingError).

  From Jonas Olsson:

  - Fix use of the Intel C compiler when the top compiler directory,
    but not the compiler version, is specified.

  - Handle Intel C compiler network license files (port@system).

  From Jim Randall:

  - Fix how Python Value Nodes are printed in --debug=explain output.

  From Adam Simpkins:

  - Add a --interactive option that starts a session for building (or
    cleaning) targets without re-reading the SConscript files every time.

  - Fix use of readline command-line editing in --interactive mode.

  - Have the --interactive mode "build" command with no arguments
    build the specified Default() targets.

  - Fix the Chmod(), Delete(), Mkdir() and Touch() Action factories to
    take a list (of Nodes or strings) as arguments.

  From Vaclav Smilauer:

  - Fix saving and restoring an Options value of 'all' on Python
    versions where all() is a builtin function.

  From Daniel Svensson:

  - Code correction in SCons.Util.is_List().

  From Ben Webb:

  - Support the SWIG %module statement with following modifiers in
    parenthese (e.g., '%module(directors="1")').



RELEASE 0.97.0d20071212 - Wed, 12 Dec 2007 09:29:32 -0600

  From Benoit Belley:

  - Fix occasional spurious rebuilds and inefficiency when using
    --implicit-cache and Builders that produce multiple targets.

  - Allow SCons to not have to know about the builders of generated
    files when BuildDir(duplicate=0) is used, potentially allowing some
    SConscript files to be ignored for smaller builds.

  From David Cournapeau:

  - Add a CheckTypeSize() call to configure contexts.

  From Ken Deeter:

  - Make the "contents" of Alias Nodes a concatenation of the children's
    content signatures (MD5 checksums), not a concatenation of the
    children's contents, to avoid using large amounts of memory during
    signature calculation.

  From Malte Helmert:

  - Fix a lot of typos in the man page and User's Guide.

  From Geoffrey Irving:

  - Speed up conversion of paths in .sconsign files to File or Dir Nodes.

  From Steven Knight:

  - Add an Options.UnknownOptions() method that returns any settings
    (from the command line, or whatever dictionary was passed in)
    that aren't known to the Options object.

  - Add a Glob() function.

  - When removing targets with the -c option, use the absolute path (to
    avoid problems interpreting BuildDir() when the top-level directory
    is the source directory).

  - Fix problems with Install() and InstallAs() when called through a
    clone (of a clone, ...) of a cloned construction environment.

  - When executing a file containing Options() settings, add the file's
    directory to sys.path (so modules can be imported from there) and
    explicity set __name__ to the name of the file so the statement's
    in the file can deduce the location if they need to.

  - Fix an O(n^2) performance problem when adding sources to a target
    through calls to a multi Builder (including Aliases).

  - Redefine the $WINDOWSPROGMANIFESTSUFFIX and
    $WINDOWSSHLIBMANIFESTSUFFIX variables so they pick up changes to
    the underlying $SHLIBSUFFIX and $PROGSUFFIX variables.

  - Add a GetBuildFailures() function that can be called from functions
    registered with the Python atexit module to print summary information
    about any failures encountered while building.

  - Return a NodeList object, not a Python list, when a single_source
    Builder like Object() is called with more than one file.

  - When searching for implicit dependency files in the directories
    in a $*PATH list, don't create Dir Nodes for directories that
    don't actually exist on-disk.

  - Add a Requires() function to allow the specification of order-only
    prerequisites, which will be updated before specified "downstream"
    targets but which don't actually cause the target to be rebuilt.

  - Restore the FS.{Dir,File,Entry}.rel_path() method.

  - Make the default behavior of {Source,Target}Signatures('timestamp')
    be equivalent to 'timestamp-match', not 'timestamp-newer'.

  - Fix use of CacheDir with Decider('timestamp-newer') by updating
    the modification time when copying files from the cache.

  - Fix random issues with parallel (-j) builds on Windows when Python
    holds open file handles (especially for SCons temporary files,
    or targets built by Python function actions) across process creation.

  From Maxim Kartashev:

  - Fix test scripts when run on Solaris.

  From Gary Oberbrunner:

  - Fix Glob() when a pattern is in an explicitly-named subdirectory.

  From Philipp Scholl:

  - Fix setting up targets if multiple Package builders are specified
    at once.



RELEASE 0.97.0d20070918 - Tue, 18 Sep 2007 10:51:27 -0500

  From Steven Knight:

  - Fix the wix Tool module to handle null entries in $PATH variables.

  - Move the documentation of Install() and InstallAs() from the list
    of functions to the list of Builders (now that they're implemented
    as such).

  - Allow env.CacheDir() to be set per construction environment.  The
    global CacheDir() function now sets an overridable global default.

  - Add an env.Decider() method and a Node.Decider() method that allow
    flexible specification of an arbitrary function to decide if a given
    dependency has changed since the last time a target was built.

  - Don't execute Configure actions (while reading SConscript files)
    when cleaning (-c) or getting help (-h or -H).

  - Add to each target an implicit dependency on the external command(s)
    used to build the target, as found by searching env['ENV']['PATH']
    for the first argument on each executed command line.

  - Add support for a $IMPLICIT_COMMAND_DEPENDENCIES construction
    variabe that can be used to disable the automatic implicit
    dependency on executed commands.

  - Add an "ensure_suffix" keyword to Builder() definitions that, when
    true, will add the configured suffix to the targets even if it looks
    like they already have a different suffix.

  - Add a Progress() function that allows for calling a function or string
    (or list of strings) to display progress while walking the DAG.

  - Allow ParseConfig(), MergeFlags() and ParseFlags() to handle output
    from a *config command with quoted path names that contain spaces.

  - Make the Return() function stop processing the SConscript file and
    return immediately.  Add a "stop=" keyword argument that can be set
    to False to preserve the old behavior.

  - Fix use of exitstatfunc on an Action.

  - Introduce all man page function examples with "Example:" or "Examples:".

  - When a file gets added to a directory, make sure the directory gets
    re-scanned for the new implicit dependency.

  - Fix handling a file that's specified multiple times in a target
    list so that it doesn't cause dependent Nodes to "disappear" from
    the dependency graph walk.

  From Carsten Koch:

  - Avoid race conditions with same-named files and directory creation
    when pushing copies of files to CacheDir().

  From Tzvetan Mikov:

  - Handle $ in Java class names.

  From Gary Oberbrunner:

  - Add support for the Intel C compiler on Windows64.

  - On SGI IRIX, have $SHCXX use $CXX by default (like other platforms).

  From Sohail Somani:

  - When Cloning a construction environment, set any variables before
    applying tools (so the tool module can access the configured settings)
    and re-set them after (so they end up matching what the user set).

  From Matthias Troffaes:

  - Make sure extra auxiliary files generated by some LaTeX packages
    and not ending in .aux also get deleted by scons -c.

  From Greg Ward:

  - Add a $JAVABOOTCLASSPATH variable for directories to be passed to the
    javac -bootclasspath option.

  From Christoph Wiedemann:

  - Add implicit dependencies on the commands used to build a target.




RELEASE 0.97.0d20070809 - Fri, 10 Aug 2007 10:51:27 -0500

  From Lars Albertsson:

  - Don't error if a #include line happens to match a directory
    somewhere on a path (like $CPPPATH, $FORTRANPATH, etc.).

  From Mark Bertoglio:

  - Fix listing multiple projects in Visual Studio 7.[01] solution files,
    including generating individual project GUIDs instead of re-using
    the solution GUID.

  From Jean Brouwers:

  - Add /opt/SUNWspro/bin to the default execution PATH on Solaris.

  From Allan Erskine:

  - Only expect the Microsoft IDL compiler to emit *_p.c and *_data.c
    files if the /proxy and /dlldata switches are used (respectively).

  From Steven Knight:

  - Have --debug=explain report if a target is being rebuilt because
    AlwaysBuild() is specified (instead of "unknown reasons").

  - Support {Get,Set}Option('help') to make it easier for SConscript
    files to tell if a help option (-h, --help, etc.) has been specified.

  - Support {Get,Set}Option('random') so random-dependency interaction
    with CacheDir() is controllable from SConscript files.

  - Add a new AddOption() function to support user-defined command-
    line flags (like --prefix=, --force, etc.).

  - Push and retrieve built symlinks to/from a CacheDir() as actual
    symlinks, not by copying the file contents.

  - Fix how the Action module handles stringifying the shared library
    generator in the Tool/mingw.py module.

  - When generating a config.h file, print "#define HAVE_{FEATURE} 1"
    instad of just "#define HAVE_{FEATURE}", for more compatibility
    with Autoconf-style projects.

  - Fix expansion of $TARGET, $TARGETS, $SOURCE and $SOURCES keywords in
    Visual C/C++ PDB file names.

  - Fix locating Visual C/C++ PDB files in build directories.

  - Support an env.AddMethod() method and an AddMethod() global function
    for adding a new method, respectively, to a construction environment
    or an arbitrary object (such as a class).

  - Fix the --debug=time option when the -j option is specified and all
    files are up to date.

  - Add a $SWIGOUTDIR variable to allow setting the swig -outdir option,
    and use it to identify files created by the swig -java option.

  - Add a $SWIGPATH variable that specifies the path to be searched
    for included SWIG files, Also add related $SWIGINCPREFIX and
    $SWIGINCSUFFIX variables that specify the prefix and suffix to
    be be added to each $SWIGPATH directory when expanded on the SWIG
    command line.

  - More efficient copying of construction environments (mostly borrowed
    from copy.deepcopy() in the standard Python library).

  - When printing --tree=prune output, don't print [brackets] around
    source files, only do so for built targets with children.

  - Fix interpretation of Builder source arguments when the Builder has
    a src_suffix *and* a source_builder and the argument has no suffix.

  - Fix use of expansions like ${TARGET.dir} or ${SOURCE.dir} in the
    following construction variables:  $FORTRANMODDIR, $JARCHDIR,
    $JARFLAGS, $LEXFLAGS, $SWIGFLAGS, $SWIGOUTDIR and $YACCFLAGS.

  - Fix dependencies on Java files generated by SWIG so they can be
    detected and built in one pass.

  - Fix SWIG when used with a BuildDir().

  From Leanid Nazdrynau:

  - When applying Tool modules after a construction environment has
    already been created, don't overwrite existing $CFILESUFFIX and
    $CXXFILESUFFIX value.

  - Support passing the Java() builder a list of explicit .java files
    (not only a list of directories to be scanned for .java files).

  - Support passing .java files to the Jar() and JavaH() builders, which
    then use the builder underlying the Java() builder to turn them into
    .class files.  (That is, the Jar()-Java() chain of builders become
    multi-step, like the Program()-Object()-CFile() builders.)

  - Support passing SWIG .i files to the Java builders (Java(),
    Jar(), JavaH()), to cause intermediate .java files to be created
    automatically.

  - Add $JAVACLASSPATH and $JAVASOURCEPATH variables, that get added to
    the javac "-classpath" and "-sourcepath" options.  (Note that SCons
    does *not* currently search these paths for implicit dependencies.)

  - Commonize initialization of Java-related builders.

  From Jan Nijtmans:

  - Find Java anonymous classes when the next token after the name is
    an open parenthesis.

  From Gary Oberbrunner:

  - Fix a code example in the man page.

  From Tilo Prutz:

  - Add support for the file names that Java 1.5 (and 1.6) generates for
    nested anonymous inner classes, which are different from Java 1.4.

  From Adam Simpkins:

  - Allow worker threads to terminate gracefully when all jobs are
    finished.

  From Sohail Somani:

  - Add LaTeX scanner support for finding dependencies specified with
    the \usepackage{} directive.



RELEASE 0.97 - Thu, 17 May 2007 08:59:41 -0500

  From Steven Knight:

  - Fix a bug that would make parallel builds stop in their tracks if
    Nodes that depended on lists that contained some Nodes built together
    caused the reference count to drop below 0 if the Nodes were visited
    and commands finished in the wrong order.

  - Make sure the DirEntryScanner doesn't choke if it's handed something
    that's not a directory (Node.FS.Dir) Node.



RELEASE 0.96.96 - Thu, 12 Apr 2007 12:36:25 -0500

  NOTE:  This is (Yet) a(nother) pre-release of 0.97 for testing purposes.

  From Joe Bloggs:

  - Man page fix:  remove cut-and-paste sentence in NoCache() description.

  From Dmitry Grigorenko and Gary Oberbrunner:

  - Use the Intel C++ compiler, not $CC, to link C++ source.

  From Helmut Grohne:

  - Fix the man page example of propagating a user's external environment.

  From Steven Knight:

  - Back out (most of) the Windows registry installer patch, which
    seems to not work on some versions of Windows.

  - Don't treat Java ".class" attributes as defining an inner class.

  - Fix detecting an erroneous Java anonymous class when the first
    non-skipped token after a "new" keyword is a closing brace.

  - Fix a regression when a CPPDEFINES list contains a tuple, the second
    item of which (the option value) is a construction variable expansion
    (e.g. $VALUE) and the value of the variable isn't a string.

  - Improve the error message if an IOError (like trying to read a
    directory as a file) occurs while deciding if a node is up-to-date.

  - Fix "maximum recursion" / "unhashable type" errors in $CPPPATH
    PathList expansion if a subsidiary expansion yields a stringable,
    non-Node object.

  - Generate API documentation from the docstrings (using epydoc).

  - Fix use of --debug=presub with Actions for out-of-the-box Builders.

  - Fix handling nested lists within $CPPPATH, $LIBPATH, etc.

  - Fix a "builders_used" AttributeError that real-world Qt initialization
    triggered in the refactored suffix handling for Builders.

  - Make the reported --debug=time timings meaningful when used with -j.
    Better documentation of what the times mean.

  - User Guide updates: --random, AlwaysBuild(), --tree=,
    --debug=findlibs, --debug=presub, --debug=stacktrace,
    --taskmastertrace.

  - Document (in both man page and User's Guide) that --implicit-cache
    ignores changes in $CPPPATH, $LIBPATH, etc.

  From Jean-Baptiste Lab:

  - Remove hard-coded dependency on Python 2.2 from Debian packaging files.

  From Jeff Mahovsky:

  - Handle spaces in the build target name in Visual Studio project files.

  From Rob Managan:

  - Re-run LaTeX after BibTeX has been re-run in response to a changed
    .bib file.

  From Joel B. Mohler:

  - Make additional TeX auxiliary files (.toc, .idx and .bbl files)
    Precious so their removal doesn't affect whether the necessary
    sections are included in output PDF or PostScript files.

  From Gary Oberbrunner:

  - Fix the ability to import modules in the site_scons directory from
    a subdirectory.

  From Adam Simpkins:

  - Make sure parallel (-j) builds all targets even if they show up
    multiple times in the child list (as a source and a dependency).

  From Matthias Troffaes:

  - Don't re-run TeX if the triggering strings (\makeindex, \bibliography
    \tableofcontents) are commented out.

  From Richard Viney:

  - Fix use of custom include and lib paths with Visual Studio 8.

  - Select the default .NET Framework SDK Dir based on the version of
    Visual Studio being used.



RELEASE 0.96.95 - Mon, 12 Feb 2007 20:25:16 -0600

  From Anatoly:

  - Add the scons.org URL and a package description to the setup.py
    arguments.

  - Have the Windows installer add a registry entry for scons.bat in the
    "App Paths" key, so scons.bat can be executed without adding the
    directory to the %PATH%.  (Python itself works this way.)

  From Anonymous:

  - Fix looking for default paths in Visual Studio 8.0 (and later).

  - Add -lm to the list of default D libraries for linking.

  From Matt Doar:

  - Provide a more complete write-your-own-Scanner example in the man page.

  From Ralf W. Grosse-Kunstleve:

  - Contributed upstream Python change to our copied subprocess.py module
    for more efficient standard input processing.

  From Steven Knight:

  - Fix the Node.FS.Base.rel_path() method when the two nodes are on
    different drive letters.  (This caused an infinite loop when
    trying to write .sconsign files.)

  - Fully support Scanners that use a dictionary to map file suffixes
    to other scanners.

  - Support delayed evaluation of the $SPAWN variable to allow selection
    of a function via ${} string expansions.

  - Add --srcdir as a synonym for -Y/--repository.

  - Document limitations of #include "file.h" with Repository().

  - Fix use of a toolpath under the source directory of a BuildDir().

  - Fix env.Install() with a file name portion that begins with '#'.

  - Fix ParseConfig()'s handling of multiple options in a string that's
    replaced a *FLAGS construction variable.

  - Have the C++ tools initialize common C compilation variables ($CCFLAGS,
    $SHCCFLAGS and $_CCCOMCOM) even if the 'cc' Tool isn't loaded.

  From Leanid Nazdrynau:

  - Fix detection of Java anonymous classes if a newline precedes the
    opening brace.

  From Gary Oberbrunner:

  - Document use of ${} to execute arbitrary Python code.

  - Add support for:
    1) automatically adding a site_scons subdirectory (in the top-level
       SConstruct directory) to sys.path (PYTHONPATH);
    2) automatically importing site_scons/site_init.py;
    3) automatically adding site_scons/site_tools to the toolpath.

  From John Pye:

  - Change ParseConfig() to preserve white space in arguments passed in
    as a list.

  From a smith:

  - Fix adding explicitly-named Java inner class files (and any
    other file names that may contain a '$') to Jar files.

  From David Vitek:

  - Add a NoCache() function to mark targets as unsuitable for propagating
    to (or retrieving from) a CacheDir().

  From Ben Webb:

  - If the swig -noproxy option is used, it won't generate a .py file,
    so don't emit it as a target that we expect to be built.



RELEASE 0.96.94 - Sun, 07 Jan 2007 18:36:20 -0600

  NOTE:  This is a pre-release of 0.97 for testing purposes.

  From Anonymous:

  - Allow arbitrary white space after a SWIG %module declaration.

  From Paul:

  - When compiling resources under MinGW, make sure there's a space
    between the --include-dir option and its argument.

  From Jay Kint:

  - Alleviate long command line issues on Windows by executing command
    lines directly via os.spawnv() if the command line doesn't need
    shell interpretation (has no pipes, redirection, etc.).

  From Walter Franzini:

  - Exclude additional Debian packaging files from the copyright check.

  From Fawad Halim:

  - Handle the conflict between the impending Python 2.6 'as' keyword
    and our Tool/as.py module name.

  From Steven Knight:

  - Speed up the Node.FS.Dir.rel_path() method used to generate path names
    that get put into the .sconsign* file(s).

  - Optimize Node.FS.Base.get_suffix() by computing the suffix once, up
    front, when we set the Node's name.  (Duh...)

  - Reduce the Memoizer's responsibilities to simply counting hits and
    misses when the --debug=memoizer option is used, not to actually
    handling the key calculation and memoization itself.  This speeds
    up some configurations significantly, and should cause no functional
    differences.

  - Add a new scons-time script with subcommands for generating
    consistent timing output from SCons configurations, extracting
    various information from those timings, and displaying them in
    different formats.

  - Reduce some unnecessary stat() calls from on-disk entry type checks.

  - Fix SideEffect() when used with -j, which was badly broken in 0.96.93.

  - Propagate TypeError exceptions when evaluating construction variable
    expansions up the stack, so users can see what's going on.

  - When disambiguating a Node.FS.Entry into a Dir or File, don't look
    in the on-disk source directory until we've confirmed there's no
    on-disk entry locally and there *is* one in the srcdir.  This avoids
    creating a phantom Node that can interfere with dependencies on
    directory contents.

  - Add an AllowSubstExceptions() function that gives the SConscript
    files control over what exceptions cause a string to expand to ''
    vs. terminating processing with an error.

  - Allow the f90.py and f95.py Tool modules to compile earlier source
    source files of earlier Fortran version.

  - Fix storing signatures of files retrieved from CacheDir() so they're
    correctly identified as up-to-date next invocation.

  - Make sure lists of computed source suffixes cached by Builder objects
    don't persist across changes to the list of source Builders (so the
    addition of suffixes like .ui by the qt.py Tool module take effect).

  - Enhance the bootstrap.py script to allow it to be used to execute
    SCons more easily from a checked-out source tree.

  From Ben Leslie:

  - Fix post-Memoizer value caching misspellings in Node.FS._doLookup().

  From Rob Managan, Dmitry Mikhin and Joel B. Mohler:

  - Handle TeX/LaTeX files in subdirectories by changing directory
    before invoking TeX/LaTeX.

  - Scan LaTeX files for \bibliography lines.

  - Support multiple file names in a "\bibliography{file1,file2}" string.

  - Handle TeX warnings about undefined citations.

  - Support re-running LaTeX if necessary due to a Table of Contents.

  From Dmitry Mikhin:

  - Return LaTeX if "Rerun to get citations correct" shows up on the next
    line after the "Warning:" string.

  From Gary Oberbrunner:

  - Add #include lines to fix portability issues in two tests.

  - Eliminate some unnecessary os.path.normpath() calls.

  - Add a $CFLAGS variable for C-specific options, leaving $CCFLAGS
    for options common to C and C++.

  From Tom Parker:

  - Have the error message print the missing file that Qt can't find.

  From John Pye:

  - Fix env.MergeFlags() appending to construction variable value of None.

  From Steve Robbins:

  - Fix the "sconsign" script when the .sconsign.dblite file is explicitly
    specified on the command line (and not intuited from the old way of
    calling it with just ".sconsign").

  From Jose Pablo Ezequiel "Pupeno" Fernandez Silva:

  - Give the 'lex' tool knowledge of the additional target files produced
    by the flex "--header-file=" and "--tables-file=" options.

  - Give the 'yacc' tool knowledge of the additional target files produced
    by the bison "-g", "--defines=" and "--graph=" options.

  - Generate intermediate files with Objective C file suffixes (.m) when
    the lex and yacc source files have appropriate suffixes (.lm and .ym).

  From Sohail Somain:

  - Have the mslink.py Tool only look for a 'link' executable on Windows
    systems.

  From Vaclav Smilauer:

  - Add support for a "srcdir" keyword argument when calling a Builder,
    which will add a srcdir prefix to all non-relative string sources.

  From Jonathan Ultis:

  - Allow Options converters to take the construction environment as
    an optional argument.



RELEASE 0.96.93 - Mon, 06 Nov 2006 00:44:11 -0600

  NOTE:  This is a pre-release of 0.97 for testing purposes.

  From Anonymous:

  - Allow Python Value Nodes to be Builder targets.

  From Matthias:

  - Only filter Visual Studio common filename prefixes on complete
    directory names.

  From Chad Austin:

  - Fix the build of the SCons documentation on systems that don't
    have "python" in the $PATH.

  From Ken Boortz:

  - Enhance ParseConfig() to recognize options that begin with '+'.

  From John Calcote, Elliot Murphy:

  - Document ways to override the CCPDBFLAGS variable to use the
    Microsoft linker's /Zi option instead of the default /Z7.

  From Christopher Drexler:

  - Make SCons aware bibtex must be called if any \include files
    cause creation of a bibliography.

  - Make SCons aware that "\bilbiography" in TeX source files means
    that related .bbl and .blg bibliography files will be created.
    (NOTE:  This still needs to search for the string in \include files.)

  From David Gruener:

  - Fix inconsistent handling of Action strfunction arguments.

  - Preserve white space in display Action strfunction strings.

  From James Y. Knight and Gerard Patel:

  - Support creation of shared object files from assembly language.

  From Steven Knight:

  - Speed up the Taskmaster significantly by avoiding unnecessary
    re-scans of Nodes to find out if there's work to be done, having it
    track the currently-executed top-level target directly and not
    through its presence on the target list, and eliminating some other
    minor list(s), method(s) and manipulation.

  - Fix the expansion of $TARGET and $SOURCE in the expansion of
    $INSTALLSTR displayed for non-environment calls to InstallAs().

  - Fix the ability to have an Alias() call refer to a directory
    name that's not identified as a directory until later.

  - Enhance runtest.py with an option to use QMTest as the harness.
    This will become the default behavior as we add more functionality
    to the QMTest side.

  - Let linking on mingw use the default function that chooses $CC (gcc)
    or $CXX (g++) depending on whether there are any C++ source files.

  - Work around a bug in early versions of the Python 2.4 profile module
    that caused the --profile= option to fail.

  - Only call Options validators and converters once when initializing a
    construction environment.

  - Fix the ability of env.Append() and env.Prepend(), in all known Python
    versions, to handle different input value types when the construction
    variable being updated is a dictionary.

  - Add a --cache-debug option for information about what files it's
    looking for in a CacheDir().

  - Document the difference in construction variable expansion between
    {Action,Builder}() and env.{Action,Builder}().

  - Change the name of env.Copy() to env.Clone(), keeping the old name
    around for backwards compatibility (with the intention of eventually
    phasing it out to avoid confusion with the Copy() Action factory).

  From Arve Knudsen:

  - Support cleaning and scanning SWIG-generated files.

  From Carsten Koch:

  - Allow selection of Visual Studio version by setting $MSVS_VERSION
    after construction environment initialization.

  From Jean-Baptiste Lab:

  - Try using zipimport if we can't import Tool or Platform modules
    using the normal "imp" module.  This allows SCons to be packaged
    using py2exe's all-in-one-zip-file approach.

  From Ben Liblit:

  - Do not re-scan files if the scanner returns no implicit dependencies.

  From Sanjoy Mahajan:

  - Change use of $SOURCES to $SOURCE in all TeX-related Tool modules.

  From Joel B. Mohler:

  - Make SCons aware that "\makeindex" in TeX source files means that
    related .ilg, .ind and .idx index files will be created.
    (NOTE:  This still needs to search for the string in \include files.)

  - Prevent scanning the TeX .aux file for additional files from
    trying to remove it twice when the -c option is used.

  From Leanid Nazdrynau:

  - Give the MSVC RES (resource) Builder a src_builder list and a .rc
    src_suffix so other builders can generate .rc files.

  From Matthew A. Nicholson:

  - Enhance Install() and InstallAs() to handle directory trees as sources.

  From Jan Nijtmans:

  - Don't use the -fPIC flag when using gcc on Windows (e.g. MinGW).

  From Greg Noel:

  - Add an env.ParseFlags() method that provides separate logic for
    parsing GNU tool chain flags into a dictionary.

  - Add an env.MergeFlags() method to apply an arbitrary dictionary
    of flags to a construction environment's variables.

  From Gary Oberbrunner:

  - Fix parsing tripartite Intel C compiler version numbers on Linux.

  - Extend the ParseConfig() function to recognize -arch and
    -isysroot options.

  - Have the error message list the known suffixes when a Builder call
    can't build a source file with an unknown suffix.

  From Karol Pietrzak:

  - Avoid recursive calls to main() in the program snippet used by the
    SConf subsystem to test linking against libraries.  This changes the
    default behavior of CheckLib() and CheckLibWithHeader() to print
    "Checking for C library foo..." instead of "Checking for main()
    in C library foo...".

  From John Pye:

  - Throw an exception if a command called by ParseConfig() or
    ParseFlags() returns an error.

  From Stefan Seefeld:

  - Initial infrastructure for running SCons tests under QMTest.

  From Sohail Somani:

  - Fix tests that fail due to gcc warnings.

  From Dobes Vandermeer:

  - In stack traces, print the full paths of SConscript files.

  From Atul Varma:

  - Fix detection of Visual C++ Express Edition.

  From Dobes Vandermeer:

  - Let the src_dir option to the SConscript() function affect all the
    the source file paths, instead of treating all source files paths
    as relative to the SConscript directory itself.

  From Nicolas Vigier:

  - Fix finding Fortran modules in build directories.

  - Fix use of BuildDir() when the source file in the source directory
    is a symlink with a relative path.

  From Edward Wang:

  - Fix the Memoizer when the SCons Python modules are executed from
    .pyo files at different locations from where they were compiled.

  From Johan Zander:

  - Fix missing os.path.join() when constructing the $FRAMEWORKSDKDIR/bin.



RELEASE 0.96.92 - Mon, 10 Apr 2006 21:08:22 -0400

  NOTE:  This was a pre-release of 0.97 for testing purposes.

  From Anonymous:

  - Fix the intelc.py Tool module to not throw an exception if the
    only installed version is something other than ia32.

  - Set $CCVERSION when using gcc.

  From Matthias:

  - Support generating project and solution files for Microsoft
    Visual Studio version 8.

  - Support generating more than one project file for a Microsoft
    Visual Studio solution file.

  - Add support for a support "runfile" parameter to Microsoft
    Visual Studio project file creation.

  - Put the project GUID, not the solution GUID, in the right spot
    in the solution file.

  From Erling Andersen:

  - Fix interpretation of Node.FS objects wrapped in Proxy instances,
    allowing expansion of things like ${File(TARGET)} in command lines.

  From Stanislav Baranov:

  - Add a separate MSVSSolution() Builder, with support for the
    following new construction variables: $MSVSBUILDCOM, $MSVSCLEANCOM,
    $MSVSENCODING, $MSVSREBUILDCOM, $MSVSSCONS, $MSVSSCONSCOM,
    $MSVSSCONSFLAGS, $MSVSSCONSCRIPT and $MSVSSOLUTIONCOM.

  From Ralph W. Grosse-Kunstleve and Patrick Mezard:

  - Remove unneceesary (and incorrect) SCons.Util strings on some function
    calls in SCons.Util.

  From Bob Halley:

  - Fix C/C++ compiler selection on AIX to not always use the external $CC
    environment variable.

  From August Hörandl:

  - Add a scanner for \include and \import files, with support for
    searching a directory list in $TEXINPUTS (imported from the external
    environment).

  - Support $MAKEINDEX, $MAKEINDEXCOM, $MAKEINDEXCOMSTR and
    $MAKEINDEXFLAGS for generating indices from .idx files.

  From Steven Johnson:

  - Add a NoClean() Environment method and function to override removal
    of targets during a -c clean, including documentation and tests.

  From Steven Knight:

  - Check for whether files exist on disk by listing the directory
    contents, not calling os.path.exists() file by file.  This is
    somewhat more efficient in general, and may be significantly
    more efficient on Windows.

  - Minor speedups in the internal is_Dict(), is_List() and is_String()
    functions.

  - Fix a signature refactoring bug that caused Qt header files to
    get re-generated every time.

  - Don't fail when writing signatures if the .sconsign.dblite file is
    owned by a different user (e.g. root) from a previous run.

  - When deleting variables from stacked OverrideEnvironments, don't
    throw a KeyError if we were able to delte the variable from any
    Environment in the stack.

  - Get rid of the last indentation tabs in the SCons source files and
    add -tt to the Python invocations in the packaging build and the
    tests so they don't creep back in.

  - In Visual Studio project files, put quotes around the -C directory
    so everything works even if the path has spaces in it.

  - The Intel Fortran compiler uses -object:$TARGET, not "-o $TARGET",
    when building object files on Windows.  Have the the ifort Tool
    modify the default command lines appropriately.

  - Document the --debug=explain option in the man page.  (How did we
    miss this?)

  - Add a $LATEXRETRIES variable to allow configuration of the number of
    times LaTex can be re-called to try to resolve undefined references.

  - Change the order of the arguments to Configure.Checklib() to match
    the documentation.

  - Handle signature calculation properly when the Python function used
    for a FunctionAction is an object method.

  - On Windows, assume that absolute path names without a drive letter
    refer to the drive on which the SConstruct file lives.

  - Add /usr/ccs/bin to the end of the the default external execution
    PATH on Solaris.

  - Add $PKGCHK and $PKGINFO variables for use on Solaris when searching
    for the SunPRO C++ compiler.  Make the default value for $PKGCHK
    be /usr/sbin/pgkchk (since /usr/sbin isn't usually on the external
    execution $PATH).

  - Fix a man page example of overriding variables when calling
    SharedLibrary() to also set the $LIBSUFFIXES variable.

  - Add a --taskmastertrace=FILE option to give some insight on how
    the taskmaster decides what Node to build next.

  - Changed the names of the old $WIN32DEFPREFIX, $WIN32DEFSUFFIX,
    $WIN32DLLPREFIX and $WIN32IMPLIBPREFIX construction variables to
    new $WINDOWSDEFPREFIX, $WINDOWSDEFSUFFIX, $WINDOWSDLLPREFIX and
    $WINDOWSIMPLIBPREFIX construction variables.  The old names are now
    deprecated, but preserved for backwards compatibility.

  - Fix (?) a runtest.py hang on Windows when the --xml option is used.

  - Change the message when an error occurs trying to interact with the
    file system to report the target(s) in square brackets (as before) and
    the actual file or directory that encountered the error afterwards.

  From Chen Lee:

  - Add x64 support for Microsoft Visual Studio 8.

  From Baptiste Lepilleur:

  - Support the --debug=memory option on Windows when the Python version
    has the win32process and win32api modules.

  - Add support for Visual Studio 2005 Pro.

  - Fix portability issues in various tests: test/Case.py,
    Test/Java/{JAR,JARCHDIR,JARFLAGS,JAVAC,JAVACFLAGS,JAVAH,RMIC}.py,
    test/MSVS/vs-{6.0,7.0,7.1,8.0}-exec.py,
    test/Repository/{Java,JavaH,RMIC}.py,
    test/QT/{generated-ui,installed,up-to-date,warnings}.py,
    test/ZIP/ZIP.py.

  - Ignore pkgchk errors on Solaris when searching for the C++ compiler.

  - Speed up the SCons/EnvironmentTests.py unit tests.

  - Add a --verbose= option to runtest.py to print executed commands
    and their output at various levels.

  From Christian Maaser:

  - Add support for Visual Studio Express Editions.

  - Add support for Visual Studio 8 *.manifest files, includng
    new $WINDOWS_INSERT_MANIFEST, $WINDOWSPROGMANIFESTSUFFIX,
    $WINDOWSPROGMANIFESTPREFIX, $WINDOWSPROGMANIFESTSUFFIX,
    $WINDOWSSHLIBMANIFESTPREFIX and $WINDOWSSHLIBMANIFESTSUFFIX
    construction variables.

  From Adam MacBeth:

  - Fix detection of additional Java inner classes following use of a
    "new" keyword inside an inner class.

  From Sanjoy Mahajan:

  - Correct TeX-related command lines to just $SOURCE, not $SOURCES

  From Patrick Mezard:

  - Execute build commands for a command-line target if any of the
    files built along with the target is out of date or non-existent,
    not just if the command-line target itself is out of date.

  - Fix the -n option when used with -c to print all of the targets
    that will be removed for a multi-target Builder call.

  - If there's no file in the source directory, make sure there isn't
    one in the build directory, too, to avoid dangling files left
    over from previous runs when a source file is removed.

  - Allow AppendUnique() and PrependUnique() to append strings (and
    other atomic objects) to lists.

  From Joel B. Mohler:

  - Extend latex.py, pdflatex.py, pdftex.py and tex.py so that building
    from both TeX and LaTeX files uses the same logic to call $BIBTEX
    when it's necessary, to call $MAKEINDEX when it's necessary, and to
    call $TEX or $LATEX multiple times to handle undefined references.

  - Add an emitter to the various TeX builders so that the generated
    .aux and .log files also get deleted by the -c option.

  From Leanid Nazdrynau:

  - Fix the Qt UIC scanner to work with generated .ui files (by using
    the FindFile() function instead of checking by-hand for the file).

  From Jan Nieuwenhuizen:

  - Fix a problem with interpreting quoted argument lists on command lines.

  From Greg Noel:

  - Add /sw/bin to the default execution PATH on Mac OS X.

  From Kian Win Ong:

  - When building a .jar file and there is a $JARCHDIR, put the -C
    in front of each .class file on the command line.

  - Recognize the Java 1.5 enum keyword.

  From Asfand Yar Qazi:

  - Add /opt/bin to the default execution PATH on all POSIX platforms
    (between /usr/local/bin and /bin).

  From Jon Rafkind:

  - Fix the use of Configure() contexts from nested subsidiary
    SConscript files.

  From Christoph Schulz:

  - Add support for $CONFIGUREDIR and $CONFIGURELOG variables to control
    the directory and logs for configuration tests.

  - Add support for a $INSTALLSTR variable.

  - Add support for $RANLIBCOM and $RANLIBCOMSTR variables (which fixes
    a bug when setting $ARCOMSTR).

  From Amir Szekely:

  - Add use of $CPPDEFINES to $RCCOM (resource file compilation) on MinGW.

  From Erick Tryzelaar:

  - Fix the error message when trying to report that a given option is
    not gettable/settable from an SConscript file.

  From Dobes Vandermeer:

  - Add support for SCC and other settings in Microsoft Visual
    Studio project and solution files:  $MSVS_PROJECT_BASE_PATH,
    $MSVS_PROJECT_GUID, $MSVS_SCC_AUX_PATH, $MSVS_SCC_LOCAL_PATH,
    $MSVS_SCC_PROJECT_NAME, $MSVS_SCC_PROVIDER,

  - Add support for using a $SCONS_HOME variable (imported from the
    external environment, or settable internally) to put a shortened
    SCons execution line in the Visual Studio project file.

  From David J. Van Maren:

  - Only filter common prefixes from source files names in Visual Studio
    project files if the prefix is a complete (sub)directory name.

  From Thad Ward:

  - If $MSVSVERSIONS is already set, don't overwrite it with
    information from the registry.



RELEASE 0.96.91 - Thu, 08 Sep 2005 07:18:23 -0400

  NOTE:  This was a pre-release of 0.97 for testing purposes.

  From Chad Austin:

  - Have the environment store the toolpath and re-use it to find Tools
    modules during later Copy() or Tool() calls (unless overridden).

  - Normalize the directory path names in SConsignFile() database
    files so the same signature file can interoperate on Windows and
    non-Windows systems.

  - Make --debug=stacktrace print a stacktrace when a UserError is thrown.

  - Remove an old, erroneous cut-and-paste comment in Scanner/Dir.py.

  From Stanislav Baranov:

  - Make it possible to support with custom Alias (sub-)classes.

  - Allow Builders to take empty source lists when called.

  - Allow access to both TARGET and SOURCE in $*PATH expansions.

  - Allow SConscript files to modify BUILD_TARGETS.

  From Timothee Besset:

  - Add support for Objective C/C++ .m and .mm file suffixes (for
    Mac OS X).

  From Charles Crain

  - Fix the PharLap linkloc.py module to use target+source arguments
    when calling env.subst().

  From Bjorn Eriksson:

  - Fix an incorrect Command() keyword argument in the man page.

  - Add a $TEMPFILEPREFIX variable to control the prefix or flag used
    to pass a long-command-line-execution tempfile to a command.

  From Steven Knight:

  - Enhanced the SCons setup.py script to install man pages on
    UNIX/Linux systems.

  - Add support for an Options.FormatOptionHelpText() method that can
    be overridden to customize the format of Options help text.

  - Add a global name for the Entry class (which had already been
    documented).

  - Fix re-scanning of generated source files for implicit dependencies
    when the -j option is used.

  - Fix a dependency problem that caused $LIBS scans to not be added
    to all of the targets in a multiple-target builder call, which
    could cause out-of-order builds when the -j option is used.

  - Store the paths of source files and dependencies in the .sconsign*
    file(s) relative to the target's directory, not relative to the
    top-level SConstruct directory.  This starts to make it possible to
    subdivide the dependency tree arbitrarily by putting an SConstruct
    file in every directory and using content signatures.

  - Add support for $YACCHFILESUFFIX and $YACCHXXFILESUFFIX variables
    that accomodate parser generators that write header files to a
    different suffix than the hard-coded .hpp when the -d option is used.

  - The default behavior is now to store signature information in a
    single .sconsign.dblite file in the top-level SConstruct directory.
    The old behavior of a separate .sconsign file in each directory can
    be specified by calling SConsignFile(None).

  - Remove line number byte codes within the signature calculation
    of Python function actions, so that changing the location of an
    otherwise unmodified Python function doesn't cause rebuilds.

  - Fix AddPreAction() and AddPostAction() when an action has more than
    one target file:  attach the actions to the Executor, not the Node.

  - Allow the source directory of a BuildDir / build_dir to be outside
    of the top-level SConstruct directory tree.

  - Add a --debug=nomemoizer option that disables the Memoizer for clearer
    looks at the counts and profiles of the underlying function calls,
    not the Memoizer wrappers.

  - Print various --debug= stats even if we exit early (e.g. using -h).

  - Really only use the cached content signature value if the file
    is older than --max-drift, not just if --max-drift is set.

  - Remove support for conversion from old (pre 0.96) .sconsign formats.

  - Add support for a --diskcheck option to enable or disable various
    on-disk checks:  that File and Dir nodes match on-disk entries;
    whether an RCS file exists for a missing source file; whether an
    SCCS file exists for a missing source file.

  - Add a --raw argument to the sconsign script, so it can print a
    raw representation of each entry's NodeInfo dictionary.

  - Add the 'f90' and 'f95' tools to the list of Fortran compilers
    searched for by default.

  - Add the +Z option by default when compiling shared objects on
    HP-UX.

  From Chen Lee:

  - Handle Visual Studio project and solution files in Unicode.

  From Sanjoy Mahajan:

  - Fix a bad use of Copy() in an example in the man page, and a
    bad regular expression example in the man page and User's Guide.

  From Shannon Mann:

  - Have the Visual Studio project file(s) echo "Starting SCons" before
    executing SCons, mainly to work around a quote-stripping bug in
    (some versions of?) the Windows cmd command executor.

  From Georg Mischler:

  - Remove the space after the -o option when invoking the Borland
    BCC compiler; some versions apparently require that the file name
    argument be concatenated with the option.

  From Leanid Nazdrynau:

  - Fix the Java parser's handling of backslashes in strings.

  From Greg Noel:

  - Add construction variables to support frameworks on Mac OS X:
    $FRAMEWORKS, $FRAMEWORKPREFIX, $FRAMEWORKPATH, $FRAMEWORKPATHPREFIX.

  - Re-order link lines so the -o option always comes right after the
    command name.

  From Gary Oberbrunner:

  - Add support for Intel C++ beta 9.0 (both 32 and 64 bit versions).

  - Document the new $FRAMEWORK* variables for Mac OS X.

  From Karol Pietrzak:

  - Add $RPATH (-R) support to the Sun linker Tool (sunlink).

  - Add a description of env.subst() to the man page.

  From Chris Prince:

  - Look in the right directory, not always the local directory, for a
    same-named file or directory conflict on disk.

  - On Windows, preserve the external environment's %SYSTEMDRIVE%
    variable, too.

  From Craig Scott:

  - Have the Fortran module emitter look for Fortan modules to be created
    relative to $FORTRANMODDIR, not the top-level directory.

  - When saving Options to a file, run default values through the
    converter before comparing them with the set values.  This correctly
    suppresses Boolean Option values from getting written to the saved
    file when they're one of the many synonyms for a default True or
    False value.

  - Fix the Fortran Scanner's ability to handle a module being used
    in the same file in which it is defined.

  From Steve-o:

  - Add the -KPIC option by default when compiling shared objects on
    Solaris.

  - Change the default suffix for Solaris objects to .o, to conform to
    Sun WorkShop's expectations.  Change the profix to so_ so they can
    still be differentiated from static objects in the same directory.

  From Amir Szekely:

  - When calling the resource compiler on MinGW, add --include-dir and
    the source directory so it finds the source file.

  - Update EnsureSConsVersion() to support revision numbers.

  From Greg Ward:

  - Fix a misplaced line in the man page.



RELEASE 0.96.90 - Tue, 15 Feb 2005 21:21:12 +0000

  NOTE:  This was a pre-release of 0.97 for testing purposes.

  From Anonymous:

  - Fix Java parsing to avoid erroneously identifying a new array
    of class instances as an anonymous inner class.

  - Fix a typo in the man page description of PathIsDirCreate.

  From Chad Austin:

  - Allow Help() to be called multiple times, appending to the help
    text each call.

  - Allow Tools found on a toolpath to import Python modules from
    their local directory.

  From Steve Christensen:

  - Handle exceptions from Python functions as build actions.

  - Add a set of canned PathOption validators:  PathExists (the default),
    PathIsFile, PathIsDir and PathIsDirCreate.

  From Matthew Doar:

  - Add support for .lex and .yacc file suffixes for Lex and Yacc files.

  From Eric Frias:

  - Huge performance improvement:  wrap the tuples representing an
    include path in an object, so that the time it takes to hash the
    path doesn't grow porportionally to the length of the path.

  From Gottfried Ganssauge:

  - Fix SCons on SuSE/AMD-64 Linux by having the wrapper script also
    check for the build engine in the parent directory of the Python
    library directory (/usr/lib64 instead of /usr/lib).

  From Stephen Kennedy:

  - Speed up writing the .sconsign file at the end of a run by only
    calling sync() once at the end, not after every entry.

  From Steven Knight:

  - When compiling with Microsoft Visual Studio, don't include the ATL and
    MFC directories in the default INCLUDE and LIB environment variables.

  - Remove the following deprecated features:  the ParseConfig()
    global function (deprecated in 0.93); the misspelled "validater"
    keyword to the Options.Add() method (deprecated in 0.91); the
    SetBuildSignatureType(), SetContentSignatureType(), SetJobs() and
    GetJobs() global functions (deprecated in 0.14).

  - Fix problems with corrupting the .sconsign.dblite file when
    interrupting builds by writing to a temporary file and renaming,
    not writing the file directly.

  - Fix a 0.96 regression where when running with -k, targets built from
    walking dependencies later on the command line would not realize
    that a dependency had failed an earlier build attempt, and would
    try to rebuild the dependent targets.

  - Change the final messages when using -k and errors occur from
    "{building,cleaning} terminated because of errors" to "done
    {building,cleaning} targets (errors occurred during {build,clean})."

  - Allow Configure.CheckFunc() to take an optional header argument
    (already supported by Conftest.py) to specify text at the top of
    the compiled test file.

  - Fix the --debug=explain output when a Python function action changed
    so it prints a meaningful string, not the binary representation of
    the function contents.

  - Allow a ListOption's default value(s) to be a Python list of specified
    values, not just a string containing a comma-separated list of names.

  - Add a ParseDepends() function that will parse up a list of explicit
    dependencies from a "make depend" style file.

  - Support the ability to change directory when executing an Action
    through "chdir" keyword arguments to Action and Builder creation
    and calls.

  - Fix handling of Action ojects (and other callables that don't match
    our calling arguments) in construction variable expansions.

  - On Win32, install scons.bat in the Python directory when installing
    from setup.py.  (The bdist_wininst installer was already doing this.)

  - Fix env.SConscript() when called with a list of SConscipt files.
    (The SConscript() global function already worked properly.)

  - Add a missing newline to the end of the --debug=explain "unknown
    reasons" message.

  - Enhance ParseConfig() to work properly for spaces in between the -I,
    -L and -l options and their arguments.

  - Packaging build fix:  Rebuild the files that are use to report the
    --version of SCons whenever the development version number changes.

  - Fix the ability to specify a target_factory of Dir() to a Builder,
    which the default create-a-directory Builder was interfering with.

  - Mark a directory as built if it's created as part of the preparation
    for another target, to avoid trying to build it again when it comes
    up in the target list.

  - Allow a function with the right calling signature to be put directly
    in an Environment's BUILDERS dictionary, making for easier creation
    and use of wrappers (pseudo-Builders) that call other Builders.

  - On Python 2.x, wrap lists of Nodes returned by Builders in a UserList
    object that adds a method that makes str() object return a string
    with all of the Nodes expanded to their path names.  (Builders under
    Python 1.5.2 still return lists to avoid TypeErrors when trying
    to extend() list, so Python 1.5.2 doesn't get pretty-printing of Node
    lists, but everything should still function.)

  - Allow Aliases to have actions that will be executed whenever
    any of the expanded Alias targets are out of date.

  - Fix expansion of env.Command() overrides within target and
    source file names.

  - Support easier customization of what's displayed by various default
    actions by adding lots of new construction variables: $ARCOMSTR,
    $ASCOMSTR, $ASPPCOMSTR, $BIBTEXCOMSTR, $BITKEEPERCOMSTR, $CCCOMSTR,
    $CVSCOMSTR, $CXXCOMSTR, $DCOMSTR, $DVIPDFCOMSTR, $F77COMSTR,
    $F90COMSTR, $F95COMSTR, $FORTRANCOMSTR, $GSCOMSTR, $JARCOMSTR,
    $JAVACCOMSTR, $JAVAHCOMSTR, $LATEXCOMSTR, $LEXCOMSTR, $LINKCOMSTR,
    $M4COMSTR, $MIDLCOMSTR, $P4COMSTR, $PCHCOMSTR, $PDFLATEXCOMSTR,
    $PDFTEXCOMSTR, $PSCOMSTR, $QT_MOCFROMCXXCOMSTR, $QT_MOCFROMHCOMSTR,
    $QT_UICCOMSTR, $RCCOMSTR, $REGSVRCOMSTR, $RCS_COCOMSTR, $RMICCOMSTR,
    $SCCSCOMSTR, $SHCCCOMSTR, $SHCXXCOMSTR, $SHF77COMSTR, $SHF90COMSTR,
    $SHF95COMSTR, $SHFORTRANCOMSTR, $SHLINKCOMSTR, $SWIGCOMSTR,
    $TARCOMSTR, $TEXCOMSTR, $YACCCOMSTR and $ZIPCOMSTR.

  - Add an optional "map" keyword argument to ListOption() that takes a
    dictionary to map user-specified values to legal values from the list
    (like EnumOption() already doee).

  - Add specific exceptions to try:-except: blocks without any listed,
    so that they won't catch and mask keyboard interrupts.

  - Make --debug={tree,dtree,stree} print something even when there's
    a build failure.

  - Fix how Scanners sort the found dependencies so that it doesn't
    matter whether the dependency file is in a Repository or not.
    This may cause recompilations upon upgrade to this version.

  - Make AlwaysBuild() work with Alias and Python value Nodes (making
    it much simpler to support aliases like "clean" that just invoke
    an arbitrary action).

  - Have env.ParseConfig() use AppendUnique() by default to suppress
    duplicate entries from multiple calls.  Add a "unique" keyword
    argument to allow the old behavior to be specified.

  - Allow the library modules imported by an SConscript file to get at
    all of the normally-available global functions and variables by saying
    "from SCons.Script import *".

  - Add a --debug=memoizer option to print Memoizer hit/mass statistics.

  - Allow more than one --debug= option to be set at a time.

  - Change --debug=count to report object counts before and after
    reading SConscript files and before and after building targets.

  - Change --debug=memory output to line up the numbers and to better
    match (more or less) the headers on the --debug=count columns.

  - Speed things up when there are lists of targets and/or sources by
    getting rid of some N^2 walks of the lists involved.

  - Cache evaluation of LazyActions so we don't create a new object
    for each invocation.

  - When scanning, don't create Nodes for include files that don't
    actually exist on disk.

  - Make supported global variables CScanner, DScanner, ProgramScanner and
    SourceFileScanner.  Make SourceFileScanner.add_scanner() a supported
    part of the public interface.  Keep the old SCons.Defaults.*Scan names
    around for a while longer since some people were already using them.

  - By default, don't scan directories for on-disk files.  Add a
    DirScanner global scanner that can be used in Builders or Command()
    calls that want source directory trees scanned for on-disk changes.
    Have the Tar() and Zip() Builders use the new DirScanner to preserve
    the behavior of rebuilding a .tar or .zip file if any file or
    directory under a source tree changes.  Add Command() support for
    a source_scanner keyword argument to Command() that can be set to
    DirScanner to get this behavior.

  - Documentation changes:  Explain that $CXXFLAGS contains $CCFLAGS
    by default.  Fix a bad target_factory example in the man page.
    Add appendices to the User's Guide to cover the available Tools,
    Builders and construction variables.  Comment out the build of
    the old Python 10 paper, which doesn't build on all systems and
    is old enough at this point that it probably isn't worth the
    effort to make it do so.

  From Wayne Lee:

  - Avoid "maximum recursion limit" errors when removing $(-$) pairs
    from long command lines.

  From Clive Levinson:

  - Make ParseConfig() recognize and add -mno-cygwin to $LINKFLAGS and
    $CCFLAGS, and -mwindows to $LINKFLAGS.

  From Michael McCracken:

  - Add a new "applelink" tool to handle the things like Frameworks and
    bundles that Apple has added to gcc for linking.

  - Use more appropriate default search lists of linkers, compilers and
    and other tools for the 'darwin' platform.

  - Add a LoadableModule Builder that builds a bundle on Mac OS X (Darwin)
    and a shared library on other systems.

  - Improve SWIG tests for use on Mac OS X (Darwin).

  From Elliot Murphy:

  - Enhance the tests to guarantee persistence of ListOption
    values in saved options files.

  - Supply the help text when -h is used with the -u, -U or -D options.

  From Christian Neeb:

  - Fix the Java parser's handling of string definitions to avoid ignoring
    subsequent code.

  From Han-Wen Nienhuys:

  - Optimize variable expansion by:  using the re.sub() method (when
    possible); not using "eval" for variables for which we can fetch the
    value directory; avoiding slowing substitution logic when there's no
    '$' in the string.

  From Gary Oberbrunner:

  - Add an Environment.Dump() method to print the contents of a
    construction environment.

  - Allow $LIBS (and similar variables) to contain explicit File Nodes.

  - Change ParseConfig to add the found library names directly to the
    $LIBS variable, instead of returning them.

  - Add ParseConfig() support for the -framework GNU linker option.

  - Add a PRINT_CMD_LINE_FUNC construction variable to allow people
    to filter (or log) command-line output.

  - Print an internal Python stack trace in response to an otherwise
    unexplained error when --debug=stacktrace is specified.

  - Add a --debug=findlibs option to print what's happening when
    the scanner is searching for libraries.

  - Allow Tool specifications to be passed a dictionary of keyword
    arguments.

  - Support an Options default value of None, in which case the variable
    will not be added to the construction environment unless it's set
    explicitly by the user or from an Options file.

  - Avoid copying __builtin__ values into a construction environment's
    dictionary when evaluating construction variables.

  - Add a new cross-platform intelc.py Tool that can detect and
    configure the Intel C++ v8 compiler on both Windows, where it's
    named icl, and Linux, where it's named icc.  It also checks that
    the directory specified in the Windows registry exists, and sets a
    new $INTEL_C_COMPILER_VERSION construction variable to identify the
    version being used.  (Niall Douglas contributed an early prototype
    of parts of this module.)

  - Fix the private Conftest._Have() function so it doesn't change
    non-alphanumeric characters to underscores.

  - Supply a better error message when a construction variable expansion
    has an unknown attribute.

  - Documentation changes:  Update the man page to describe use of
    filenames or Nodes in $LIBS.

  From Chris Pawling:

  - Have the linkloc tool use $MSVS_VERSION to select the Microsoft
    Visual Studio version to use.

  From Kevin Quick:

  - Fix the Builder name returned from ListBuilders and other instances
    of subclasses of the BuilderBase class.

  - Add Builders and construction variables to support rpcgen:
    RPCGenClient(), RPCGenHeader(), RPCGenService(), RPCGenXDR(),
    $RPCGEN, $RPCGENFLAGS, $RPCGENCLIENTFLAGS, $RPCGENHEADERFLAGS,
    $RPCGENSERVICEFLAGS, $RPCGENXDRFLAGS.

  - Update the man page to document that prefix and suffix Builder
    keyword arguments can be strings, callables or dictionaries.

  - Provide more info in the error message when a user tries to build
    a target multiple ways.

  - Fix Delete() when a file doesn't exist and must_exist=1.  (We were
    unintentionally dependent on a bug in versions of the Python shutil.py
    module prior to Python 2.3, which would generate an exception for
    a nonexistent file even when ignore_errors was set.)

  - Only replace a Node's builder with a non-null source builder.

  - Fix a stack trace when a suffix selection dictionary is passed
    an empty source file list.

  - Allow optional names to be attached to Builders, for default
    Builders that don't get attached to construction environments.

  - Fix problems with Parallel Task Exception handling.

  - Build targets in an associated BuildDir even if there are targets
    or subdirectories locally in the source directory.

  - If a FunctionAction has a callable class as its underlying Python
    function, use its strfunction() method (if any) to display the
    action.

  - Fix handling when BuildDir() exists but is unwriteable.  Add
    "Stop." to those error messages for consistency.

  - Catch incidents of bad builder creation (without an action) and
    supply meaningful error messages.

  - Fix handling of src_suffix values that aren't extensions (don't
    begin with a '.').

  - Don't retrieve files from a CacheDir, but report what would happen,
    when the -n option is used.

  - Use the source_scanner from the target Node, not the source node
    itself.

  - Internal Scanners fixes:  Make sure Scanners are only passed Nodes.
    Fix how a Scanner.Selector called its base class initialization.
    Make comparisons of Scanner objects more robust.  Add a name to
    an internal default ObjSourceScanner.

  - Add a deprecated warning for use of the old "scanner" keyword argument
    to Builder creation.

  - Improve the --debug=explain message when the build action changes.

  - Test enhancements in SourceCode.py, option-n.py, midl.py.  Better
    Command() and Scanner test coverage.  Improved test infrastructure
    for -c output.

  - Refactor the interface between Action and Executor objects to treat
    Actions atomically.

  - The --debug=presub option will now report the pre-substitution
    each action seprately, instead of reporting the entire list before
    executing the actions one by one.

  - The --debug=explain option explaining a changed action will now
    (more correctly) show pre-substitution action strings, instead of
    the commands with substituted file names.

  - A Node (file) will now be rebuilt if its PreAction or PostAction
    actions change.

  - Python Function actions now have their calling signature (target,
    source, env) reported correctly when displayed.

  - Fix BuildDir()/build_dir handling when the build_dir is underneath
    the source directory and trying to use entries from the build_dir
    as sources for other targets in the build-dir.

  - Fix hard-coding of JDK path names in various Java tests.

  - Handle Python stack traces consistently (stop at the SConscript stack
    frame, by default) even if the Python source code isn't available.

  - Improve the performance of the --debug={tree,dtree} options.

  - Add --debug=objects logging of creation of OverrideWarner,
    EnvironmentCopy and EnvironmentOverride objects.

  - Fix command-line expansion of Python Value Nodes.

  - Internal cleanups:  Remove an unnecessary scan argument.  Associate
    Scanners only with Builders, not nodes.  Apply overrides once when
    a Builder is called, not in multiple places.  Cache results from the
    Node.FS.get_suffix() and Node.get_build_env() methods.  Use the Python
    md5 modules' hexdigest() method, if there is one.  Have Taskmaster
    call get_stat() once for each Node and re-use the value instead of
    calling it each time it needs the value.  Have Node.depends_on()
    re-use the list from the children() method instead of calling it
    multiple times.

  - Use the correct scanner if the same source file is used for targets in
    two different environments with the same path but different scanners.

  - Collect logic for caching values in memory in a Memoizer class,
    which cleans up a lot of special-case code in various methods and
    caches additional values to speed up most configurations.

  - Add a PathAccept validator to the list of new canned PathOption
    validators.

  From Jeff Squyres:

  - Documentation changes:  Use $CPPDEFINES instead of $CCFLAGS in man
    page examples.

  From Levi Stephen:

  - Allow $JARCHDIR to be expanded to other construction variables.

  From Christoph Wiedemann:

  - Add an Environment.SetDefault() method that only sets values if
    they aren't already set.

  - Have the qt.py Tool not override variables already set by the user.

  - Add separate $QT_BINPATH, $QT_CPPPATH and $QT_LIBPATH variables
    so these can be set individually, instead of being hard-wired
    relative to $QTDIR.

  - The %TEMP% and %TMP% external environment variables are now propagated
    automatically to the command execution environment on Windows systems.

  - A new --config= command-line option allows explicit control of
    of when the Configure() tests are run:  --config=force forces all
    checks to be run, --config=cache uses all previously cached values,
    --config=auto (the default) runs tests only when dependency analysis
    determines it's necessary.

  - The Configure() subsystem can now write a config.h file with values
    like HAVE_STDIO_H, HAVE_LIBM, etc.

  - The Configure() subsystem now executes its checks silently when the
    -Q option is specified.

  - The Configure() subsystem now reports if a test result is being
    taken from cache, and prints the standard output and error output
    of tests even when cached.

  - Configure() test results are now reported as "yes" or "no" instead of
    "ok" or "failed."

  - Fixed traceback printing when calling the env.Configure() method
    instead of the Configure() global function.

  - The Configure() subsystem now caches build failures in a .sconsign
    file in the subdirectory, not a .cache file.  This may cause
    tests to be re-executed the first time after you install 0.97.

  - Additional significant internal cleanups in the Configure() subsystem
    and its tests.

  - Have the Qt Builder make uic-generated files dependent on the .ui.h
    file, if one exists.

  - Add a test to make sure that SCons source code does not contain
    try:-except: blocks that catch all errors, which potentially catch
    and mask keyboard interrupts.

  - Fix us of TargetSignatures('content') with the SConf subsystem.

  From Russell Yanofsky:

  - Add support for the Metrowerks Codewarrior compiler and linker
    (mwcc and mwld).



RELEASE 0.96.1 - Mon, 23 Aug 2004 12:55:50 +0000

  From Craig Bachelor:

  - Handle white space in the executable Python path name within in MSVS
    project files by quoting the path.

  - Correct the format of a GUID string in a solution (.dsw) file so
    MSVS can correctly "build enable" a project.

  From Steven Knight:

  - Add a must_exist flag to Delete() to let the user control whether
    it's an error if the specified entry doesn't exist.  The default
    behavior is now to silently do nothing if it doesn't exist.

  - Package up the new Platform/darwin.py, mistakenly left out of 0.96.

  - Make the scons.bat REM statements into @REM so they aren't printed.

  - Make the SCons packaging SConscript files platform independent.

  From Anthony Roach:

  - Fix scanning of pre-compiled header (.pch) files for #includes,
    broken in 0.96.



RELEASE 0.96 - Wed, 18 Aug 2004 13:36:40 +0000

  From Chad Austin:

  - Make the CacheDir() directory if it doesn't already exist.

  - Allow construction variable substitutions in $LIBS specifications.

  - Allow the emitter argument to a Builder() to be or expand to a list
    of emitter functions, which will be called in sequence.

  - Suppress null values in construction variables like $LIBS that use
    the internal _concat() function.

  - Remove .dll files from the construction variables searched for
    libraries that can be fed to Win32 compilers.

  From Chad Austin and Christoph Wiedemann:

  - Add support for a $RPATH variable to supply a list of directories
    to search for shared libraries when linking a program.  Used by
    the GNU and IRIX linkers (gnulink and sgilink).

  From Charles Crain:

  - Restore the ability to do construction variable substitutions in all
    kinds of *PATH variables, even when the substitution returns a Node
    or other object.

  From Tom Epperly:

  - Allow the Java() Builder to take more than one source directory.

  From Ralf W. Grosse-Kunstleve:

  - Have SConsignFile() use, by default, a custom "dblite.py" that we can
    control and guarantee to work on all Python versions (or nearly so).

  From Jonathan Gurley:

  - Add support for the newer "ifort" versions of the Intel Fortran
    Compiler for Linux.

  From Bob Halley:

  - Make the new *FLAGS variable type work with copied Environments.

  From Chris Hoeppler:

  - Initialize the name of a Scanner.Classic scanner correctly.

  From James Juhasz:

  - Add support for the .dylib shared library suffix and the -dynamiclib
    linker option on Mac OS X.

  From Steven Knight:

  - Add an Execute() method for executing actions directly.

  - Support passing environment override keyword arguments to Command().

  - Fix use of $MSVS_IGNORE_IDE_PATHS, which was broken when we added
    support for $MSVS_USE_MFC_DIRS last release.

  - Make env.Append() and env.Prepend() act like the underlying Python
    behavior when the variable being appended to is a UserList object.

  - Fix a regression that prevented the Command() global function in
    0.95 from working with command-line strings as actions.

  - Fix checking out a file from a source code management system when
    the env.SourceCode() method was called with an individual file name
    or node, not a directory name or node.

  - Enhance the Task.make_ready() method to create a list of the
    out-of-date Nodes for the task for use by the wrapping interface.

  - Allow Scanners to pull the list of suffixes from the construction
    environment when the "skeys" keyword argument is a string containing
    a construction variable to be expanded.

  - Support new $CPPSUFFIXES, $DSUFFIXES $FORTRANSUFFIXES, and
    $IDLSUFFIXES.  construction variables that contain the default list
    of suffixes to be scanned by a given type of scanner, allowing these
    suffix lists to be easily added to or overridden.

  - Speed up Node creation when calling a Builder by comparing whether two
    Environments are the same object, not if their underlying dictionaries
    are equivalent.

  - Add a --debug=explain option that reports the reason(s) why SCons
    thinks it must rebuild something.

  - Add support for functions that return platform-independent Actions
    to Chmod(), Copy(), Delete(), Mkdir(), Move() and Touch() files
    and/or directories.  Like any other Actions, the returned Action
    object may be executed directly using the Execute() global function
    or env.Execute() environment method, or may be used as a Builder
    action or in an env.Command() action list.

  - Add support for the strfunction argument to all types of Actions:
    CommandAction, ListAction, and CommandGeneratorAction.

  - Speed up turning file system Nodes into strings by caching the
    values after we're finished reading the SConscript files.

  - Have ParseConfig() recognize and supporting adding the -Wa, -Wl,
    and -Wp, flags to ASFLAGS, LINKFLAGS and CPPFLAGS, respectively.

  - Change the .sconsign format and the checks for whether a Node is
    up-to-date to make dependency checks more efficient and correct.

  - Add wrapper Actions to SCons.Defaults for $ASCOM, $ASPPCOM, $LINKCOM,
    $SHLINKCOM, $ARCOM, $LEXCOM and $YACCCOM.  This makes it possible
    to replace the default print behavior with a custom strfunction()
    for each of these.

  - When a Node has been built, don't walk the whole tree back to delete
    the parents's implicit dependencies, let returning up the normal
    Taskmaster descent take care of it for us.

  - Add documented support for separate target_scanner and source_scanner
    arguments to Builder creation, which allows different scanners to
    be applied to source files

  - Don't re-install or (re-generate) .h files when a subsidiary #included
    .h file changes.  This eliminates incorrect circular dependencies
    with .h files generated from other source files.

  - Slim down the internal Sig.Calculator class by eliminating methods
    whose functionality is now covered by Node methods.

  - Document use of the target_factory and source_factory keyword
    arguments when creating Builder objects.  Enhance Dir Nodes so that
    they can be created with user-specified Builder objects.

  - Don't blow up with stack trace when the external $PATH environment
    variable isn't set.

  - Make Builder calls return lists all the time, even if there's only
    one target.  This keeps things consistent and easier to program to
    across platforms.

  - Add a Flatten() function to make it easier to deal with the Builders
    all returning lists of targets, not individual targets.

  - Performance optimizations in Node.FS.__doLookup().

  - Man page fixes:  formatting typos, misspellings, bad example.

  - User's Guide fixes: Fix the signatures of the various example
    *Options() calls.  Triple-quote properly a multi-line Split example.

  - User's Guide additions:  Chapter describing File and Directory
    Nodes.  Section describing declarative nature of SCons functions in
    SConscript files.  Better organization and clarification of points
    raised by Robert P. J. Day.  Chapter describing SConf (Autoconf-like)
    functionality.  Chapter describing how to install Python and
    SCons.  Chapter describing Java builds.

  From Chris Murray:

  - Add a .win32 attribute to force file names to expand with
    Windows backslash path separators.

  - Fix escaping file names on command lines when the expansion is
    concatenated with another string.

  - Add support for Fortran 90 and Fortran 95.  This adds $FORTRAN*
    variables that specify a default compiler, command-line, flags,
    etc. for all Fortran versions, plus separate $F90* and $F95*
    variables for when different compilers/flags/etc. must be specified
    for different Fortran versions.

  - Have individual tools that create libraries override the default
    $LIBPREFIX and $LIBSUFFIX values set by the platform.  This makes
    it easier to use Microsoft Visual Studio tools on a CygWin platform.

  From Gary Oberbrunner:

  - Add a --debug=presub option to print actions prior to substitution.

  - Add a warning upon use of the override keywords "targets" and
    "sources" when calling Builders.  These are usually mistakes which
    are otherwise silently (and confusingly) turned into construction
    variable overrides.

  - Try to find the ICL license file path name in the external environment
    and the registry before resorting to the hard-coded path name.

  - Add support for fetching command-line keyword=value arguments in
    order from an ARGLIST list.

  - Avoid stack traces when trying to read dangling symlinks.

  - Treat file "extensions" that only contain digits as part of the
    file basename.  This supports version numbers as part of shared
    library names, for example.

  - Avoid problems when there are null entries (None or '') in tool
    lists or CPPPATH.

  - Add an example and explanation of how to use "tools = ['default', ..."
    when creating a construction environment.

  - Add a section describing File and Directory Nodes and some of their
    attributes and methods.

  - Have ParseConfig() add a returned -pthread flag to both $CCFLAGS
    and $LINKFLAGS.

  - Fix some test portability issues on Mac OS X (darwin).

  From Simon Perkins:

  - Fix a bug introduced in building shared libraries under MinGW.

  From Kevin Quick:

  - Handling SCons exceptions according to Pythonic standards.

  - Fix test/chained-build.py on systems that execute within one second.

  - Fix tests on systems where 'ar' warns about archive creation.

  From Anthony Roach:

  - Fix use of the --implicit-cache option with timestamp signatures.

  - If Visual Studio is installed, assume the C/C++ compiler, the linker
    and the MIDL compiler that comes with it are available, too.

  - Better error messages when evaluating a construction variable
    expansion yields a Python syntax error.

  - Change the generation of PDB files when using Visual Studio from
    compile time to link time.

  From sam th:

  - Allow SConf.CheckLib() to search a list of libraries, like the
    Autoconf AC_SEARCH_LIBS macro.

  - Allow the env.WhereIs() method to take a "reject" argument to
    let it weed out specific path names.

  From Christoph Wiedemann:

  - Add new Moc() and Uic() Builders for more explicit control over
    Qt builds, plus new construction variables to control them:
    $QT_AUTOSCAN, $QT_DEBUG, $QT_MOCCXXPREFIX, $QT_MOCCXXSUFFIX,
    $QT_MOCHPREFIX, $QT_MOCHSUFFIX, $QT_UICDECLPREFIX, $QT_UICDECLSUFFIX,
    $QT_UICIMPLPREFIX, $QT_UICIMPLSUFFIX and $QT_UISUFFIX.

  - Add a new single_source keyword argument for Builders that enforces
    a single source file on calls to the Builder.



RELEASE 0.95 - Mon, 08 Mar 2004 06:43:20 -0600

  From Chad Austin:

  - Replace print statements with calls to sys.stdout.write() so output
    lines stay together when -j is used.

  - Add portability fixes for a number of tests.

  - Accomodate the fact that Cygwin's os.path.normcase() lies about
    the underlying system being case-sensitive.

  - Fix an incorrect _concat() call in the $RCINCFLAGS definition for
    the mingw Tool.

  - Fix a problem with the msvc tool with Python versions prior to 2.3.

  - Add support for a "toolpath" Tool() and Environment keyword that
    allows Tool modules to be found in specified local directories.

  - Work around Cygwin Python's silly fiction that it's using a
    case-sensitive file system.

  - More robust handling of data in VCComponents.dat.

  - If the "env" command is available, spawn commands with the more
    general "env -" instead of "env -i".

  From Kerim Borchaev:

  - Fix a typo in a msvc.py's registry lookup:  "VCComponents.dat", not
    "VSComponents.dat".

  From Chris Burghart:

  - Fix the ability to save/restore a PackageOption to a file.

  From Steve Christensen:

  - Update the MSVS .NET and MSVC 6.0/7.0 path detection.

  From David M. Cooke:

  - Make the Fortran scanner case-insensitive for the INCLUDE string.

  From Charles Crain:

  - If no version of MSVC is detected but the tool is specified,
    use the MSVC 6.0 paths by default.

  - Ignore any "6.1" version of MSVC found in the registry; this is a
    phony version number (created by later service packs?) and would
    throw off the logic if the user had any non-default paths configure.

  - Correctly detect if the user has independently configured the MSVC
    "include," "lib" or "path" in the registry and use the appropriate
    values.  Previously, SCons would only use the values if all three
    were set in the registry.

  - Make sure side-effect nodes are prepare()d before building their
    corresponding target.

  - Preserve the ability to call BuildDir() multiple times with the
    same target and source directory arguments.

  From Andy Friesen:

  - Add support for the Digital Mars "D" programming language.

  From Scott Lystig Fritchie:

  - Fix the ability to use a custom _concat() function in the
    construction environment when calling _stripixes().

  - Make the message about ignoring a missing SConscript file into a
    suppressable Warning, not a hard-coded sys.stderr.write().

  - If a builder can be called multiple times for a target (because
    the sources and overrides are identical, or it's a builder with the
    "multi" flag set), allow the builder to be called through multiple
    environments so long as the builders have the same signature for
    the environments in questions (that is, they're the same action).

  From Bob Halley:

  - When multiple targets are built by a single action, retrieve all
    of them from cache, not just the first target, and exec the build
    command if any of the targets isn't present in the cache.

  From Zephaniah Hull:

  - Fix command-line ARGUMENTS with multiple = in them.

  From Steven Knight:

  - Fix EnsureSConsVersion() so it checks against the SCons version,
    not the Python version, on Pythons with sys.version_info.

  - Don't swallow the AttributeError when someone uses an expansion like
    $TARGET.bak, so we can supply a more informative error message.

  - Fix an odd double-quote escape sequence in the man page.

  - Fix looking up a naked drive letter as a directory (Dir('C:')).

  - Support using File nodes in the LIBS construction variable.

  - Allow the LIBS construction variable to be a single string or File
    node, not a list, when only one library is needed.

  - Fix typos in the man page:  JAVACHDIR => JARCHDIR; add "for_signature"
    to the __call__() example in the "Variable Substitution" section.

  - Correct error message spellings of "non-existant" to "non-existent."

  - When scanning for libraries to link with, don't append $LIBPREFIXES
    or $LIBSUFFIXES values to the $LIBS values if they're already present.

  - Add a ZIPCOMPRESSION construction variable to control whether the
    internal Python action for the Zip Builder compresses the file or
    not.  The default value is zipfile.ZIP_DEFLATED, which generates
    a compressed file.

  - Refactor construction variable expansion to support recursive
    expansion of variables (e.g. CCFLAGS = "$CCFLAGS -g") without going
    into an infinite loop.  Support this in all construction variable
    overrides, as well as when copying Environments.

  - Fix calling Configure() from more than one subsidiary SConscript file.

  - Fix the env.Action() method so it returns the correct type of
    Action for its argument(s).

  - Fix specifying .class files as input to JavaH with the .class suffix
    when they weren't generated using the Java Builder.

  - Make the check for whether all of the objects going into a
    SharedLibrary() are shared work even if the object was built in a
    previous run.

  - Supply meaningful error messages, not stack traces, if we try to add
    a non-Node as a source, dependency, or ignored dependency of a Node.

  - Generate MSVS Project files that re-invoke SCons properly regardless
    of whether the file was built via scons.bat or scons.py.
    (Thanks to Niall Douglas for contributing code and testing.)

  - Fix TestCmd.py, runtest.py and specific tests to accomodate being
    run from directories whose paths include white space.

  - Provide a more useful error message if a construction variable
    expansion contains a syntax error during evaluation.

  - Fix transparent checkout of implicit dependency files from SCCS
    and RCS.

  - Added new --debug=count, --debug=memory and --debug=objects options.
    --debug=count and --debug=objects only print anything when run
    under Python 2.1 or later.

  - Deprecate the "overrides" keyword argument to Builder() creation
    in favor of using keyword argument values directly (like we do
    for builder execution and the like).

  - Always use the Builder overrides in substitutions, not just if
    there isn't a target-specific environment.

  - Add new "rsrcpath" and "rsrcdir" and attributes to $TARGET/$SOURCE,
    so Builder command lines can find things in Repository source
    directories when using BuildDir.

  - Fix the M4 Builder so that it chdirs to the Repository directory
    when the input file is in the source directory of a BuildDir.

  - Save memory at build time by allowing Nodes to delete their build
    environments after they've been built.

  - Add AppendUnique() and PrependUnique() Environment methods, which
    add values to construction variables like Append() and Prepend()
    do, but suppress any duplicate elements in the list.

  - Allow the 'qt' tool to still be used successfully from a copied
    Environment.  The include and library directories previously ended up
    having the same string re-appended to the end, yielding an incorrect
    path name.

  - Supply a more descriptive error message when the source for a target
    can't be found.

  - Initialize all *FLAGS variables with objects do the right thing with
    appending flags as strings or lists.

  - Make things like ${TARGET.dir} work in *PATH construction variables.

  - Allow a $MSVS_USE_MFC_DIRS construction variable to control whether
    ATL and MFC directories are included in the default INCLUDE and
    LIB paths.

  - Document the dbm_module argument to the SConsignFile() function.

  From Vincent Risi:

  - Add support for the bcc32, ilink32 and tlib Borland tools.

  From Anthony Roach:

  - Supply an error message if the user tries to configure a BuildDir
    for a directory that already has one.

  - Remove documentation of the still-unimplemented -e option.

  - Add -H help text listing the legal --debug values.

  - Don't choke if a construction variable is a non-string value.

  - Build Type Libraries in the target directory, not the source
    directory.

  - Add an appendix to the User's Guide showing how to accomplish
    various common tasks in Python.

  From Greg Spencer:

  - Add support for Microsoft Visual Studio 2003 (version 7.1).

  - Evaluate $MSVSPROJECTSUFFIX and $MSVSSOLUTIONSUFFIX when the Builder
    is invoked, not when the tool is initialized.

  From Christoph Wiedemann:

  - When compiling Qt, make sure the moc_*.cc files are compiled using
    the flags from the environment used to specify the target, not
    the environment that first has the Qt Builders attached.



RELEASE 0.94 - Fri, 07 Nov 2003 05:29:48 -0600

  From Hartmut Goebel:

  - Add several new types of canned functions to help create options:
    BoolOption(), EnumOption(), ListOption(), PackageOption(),
    PathOption().

  From Steven Knight:

  - Fix use of CPPDEFINES with C++ source files.

  - Fix env.Append() when the operand is an object with a __cmp__()
    method (like a Scanner instance).

  - Fix subclassing the Environment and Scanner classes.

  - Add BUILD_TARGETS, COMMAND_LINE_TARGETS and DEFAULT_TARGETS variables.

  From Steve Leblanc:

  - SGI fixes:  Fix C++ compilation, add a separate Tool/sgic++.py module.

  From Gary Oberbrunner:

  - Fix how the man page un-indents after examples in some browsers.

  From Vincent Risi:

  - Fix the C and C++ tool specifications for AIX.



RELEASE 0.93 - Thu, 23 Oct 2003 07:26:55 -0500

  From J.T. Conklin:

  - On POSIX, execute commands with the more modern os.spawnvpe()
    function, if it's available.

  - Scan .S, .spp and .SPP files for C preprocessor dependencies.

  - Refactor the Job.Parallel() class to use a thread pool without a
    condition variable.  This improves parallel build performance and
    handles keyboard interrupts properly when -j is used.

  From Charles Crain:

  - Add support for a JARCHDIR variable to control changing to a
    directory using the jar -C option.

  - Add support for detecting Java manifest files when using jar,
    and specifying them using the jar m flag.

  - Fix some Python 2.2 specific things in various tool modules.

  - Support directories as build sources, so that a rebuild of a target
    can be triggered if anything underneath the directory changes.

  - Have the scons.bat and scons.py files look for the SCons modules
    in site-packages as well.

  From Christian Engel:

  - Support more flexible inclusion of separate C and C++ compilers.

  - Use package management tools on AIX and Solaris to find where
    the comilers are installed, and what version they are.

  - Add support for CCVERSION and CXXVERSION variables for a number
    of C and C++ compilers.

  From Sergey Fogel:

  - Add test cases for the new capabilities to run bibtex and to rerun
    latex as needed.

  From Ralf W. Grosse-Kunstleve:

  - Accomodate anydbm modules that don't have a sync() method.

  - Allow SConsignFile() to take an argument specifying the DBM
    module to be used.

  From Stephen Kennedy:

  - Add support for a configurable global .sconsign.dbm file which
    can be used to avoid cluttering each directory with an individual
    .sconsign file.

  From John Johnson:

  - Fix (re-)scanning of dependencies in generated or installed
    header files.

  From Steven Knight:

  - The -Q option suppressed too many messages; fix it so that it only
    suppresses the Reading/Building messages.

  - Support #include when there's no space before the opening quote
    or angle bracket.

  - Accomodate alphanumeric version strings in EnsurePythonVersion().

  - Support arbitrary expansion of construction variables within
    file and directory arguments to Builder calls and Environment methods.

  - Add Environment-method versions of the following global functions:
    Action(), AddPostAction(), AddPreAction(), Alias(), Builder(),
    BuildDir(), CacheDir(), Clean(), Configure(), Default(),
    EnsurePythonVersion(), EnsureSConsVersion(), Environment(),
    Exit(), Export(), FindFile(), GetBuildPath(), GetOption(), Help(),
    Import(), Literal(), Local(), Platform(), Repository(), Scanner(),
    SConscriptChdir(), SConsignFile(), SetOption(), SourceSignatures(),
    Split(), TargetSignatures(), Tool(), Value().

  - Add the following global functions that correspond to the same-named
    Environment methods:  AlwaysBuild(), Command(), Depends(), Ignore(),
    Install(), InstallAs(), Precious(), SideEffect() and SourceCode().

  - Add the following global functions that correspond to the default
    Builder methods supported by SCons: CFile(), CXXFile(), DVI(), Jar(),
    Java(), JavaH(), Library(), M4(), MSVSProject(), Object(), PCH(),
    PDF(), PostScript(), Program(), RES(), RMIC(), SharedLibrary(),
    SharedObject(), StaticLibrary(), StaticObject(), Tar(), TypeLibrary()
    and Zip().

  - Rearrange the man page to show construction environment methods and
    global functions in the same list, and to explain the difference.

  - Alphabetize the explanations of the builder methods in the man page.

  - Rename the Environment.Environment class to Enviroment.Base.
    Allow the wrapping interface to extend an Environment by using its own
    subclass of Environment.Base and setting a new Environment.Environment
    variable as the calling entry point.

  - Deprecate the ParseConfig() global function in favor of a same-named
    construction environment method.

  - Allow the Environment.WhereIs() method to take explicit path and
    pathext arguments (like the underlying SCons.Util.WhereIs() function).

  - Remove the long-obsolete {Get,Set}CommandHandler() functions.

  - Enhance env.Append() to suppress null values when appropriate.

  - Fix ParseConfig() so it works regardless of initial construction
    variable values.

    Extend CheckHeader(), CheckCHeader(), CheckCXXHeader() and
    CheckLibWithHeader() to accept a list of header files that will be
    #included in the test.  The last one in the list is assumed to be
    the one being checked for.  (Prototype code contributed by Gerard
    Patel and Niall Douglas).

  - Supply a warning when -j is used and threading isn't built in to
    the current version of Python.

  - First release of the User's Guide (finally, and despite a lot
    of things still missing from it...).

  From Clark McGrew:

  - Generalize the action for .tex files so that it will decide whether
    a file is TeX or LaTeX, check the .aux output to decide if it should
    run bibtex, and check the .log output to re-run LaTeX if needed.

  From Bram Moolenaar:

  - Split the non-SCons-specific functionality from SConf.py to a new,
    re-usable Conftest.py module.

  From Gary Oberbrunner:

  - Allow a directory to be the target or source or dependency of a
    Depends(), Ignore(), Precious() or SideEffect() call.

  From Gerard Patel:

  - Use the %{_mandir} macro when building our RPM package.

  From Marko Rauhamaa:

  - Have the closing message say "...terminated because of errors" if
    there were any.

  From Anthony Roach:

  - On Win32 systems, only use "rm" to delete files if Cygwin is being
    used.   ("rm" doesn't understand Win32-format path names.)

  From Christoph Wiedemann:

  - Fix test/SWIG.py to find the Python include directory in all cases.

  - Fix a bug in detection of Qt installed on the local system.

  - Support returning Python 2.3 BooleanType values from Configure checks.

  - Provide an error message if someone mistakenly tries to call a
    Configure check from within a Builder function.

  - Support calling a Builder when a Configure context is still open.

  - Handle interrupts better by eliminating all try:-except: blocks
    which caught any and all exceptions, including KeyboardInterrupt.

  - Add a --duplicate= option to control how files are duplicated.



RELEASE 0.92 - Wed, 20 Aug 2003 03:45:28 -0500

  From Charles Crain and Gary Oberbrunner:

  - Fix Tool import problems with the Intel and PharLap linkers.

  From Steven Knight

  - Refactor the DictCmdGenerator class to be a Selector subclass.

  - Allow the DefaultEnvironment() function to take arguments and pass
    them to instantiation of the default construction environment.

  - Update the Debian package so it uses Python 2.2 and more closely
    resembles the currently official Debian packaging info.

  From Gerard Patel

  - When the yacc -d flag is used, take the .h file base name from the
    target .c file, not the source (matching what yacc does).



RELEASE 0.91 - Thu, 14 Aug 2003 13:00:44 -0500

  From Chad Austin:

  - Support specifying a list of tools when calling Environment.Copy().

  - Give a Value Nodes a timestamp of the system time when they're
    created, so they'll work when using timestamp-based signatures.

  - Add a DefaultEnvironment() function that only creates a default
    environment on-demand (for fetching source files, e.g.).

  - Portability fix for test/M4.py.

  From Steven Knight:

  - Tighten up the scons -H help output.

  - When the input yacc file ends in .yy and the -d flag is specified,
    recognize that a .hpp file (not a .h file) will be created.

  - Make builder prefixes work correctly when deducing a target
    from a source file name in another directory.

  - Documentation fixes: typo in the man page; explain up-front about
    not propagating the external environment.

  - Use "cvs co -d" instead of "cvs co -p >" when checking out something
    from CVS with a specified module name.  This avoids zero-length
    files when there is a checkout error.

  - Add an "sconsign" script to print the contents of .sconsign files.

  - Speed up maintaining the various lists of Node children by using
    dictionaries to avoid "x in list" searches.

  - Cache the computed list of Node children minus those being Ignored
    so it's only calculated once.

  - Fix use of the --cache-show option when building a Program()
    (or using any other arbitrary action) by making sure all Action
    instances have strfunction() methods.

  - Allow the source of Command() to be a directory.

  - Better error handling of things like raw TypeErrors in SConscripts.

  - When installing using "setup.py install --prefix=", suppress the
    distutils warning message about adding the (incorrect) library
    directory to your search path.

  - Correct the spelling of the "validater" option to "validator."
    Add a DeprecatedWarning when the old spelling is used.

  - Allow a Builder's emitter to be a dictionary that maps source file
    suffixes to emitter functions, using the suffix of the first file
    in the source list to pick the right one.

  - Refactor the creation of the Program, *Object and *Library Builders
    so that they're moved out of SCons.Defaults and created on demand.

  - Don't split SConscript file names on white space.

  - Document the SConscript function's "dirs" and "name" keywords.

  - Remove the internal (and superfluous) SCons.Util.argmunge() function.

  - Add /TP to the default CXXFLAGS for msvc, so it can compile all
    of the suffixes we use as C++ files.

  - Allow the "prefix" and "suffix" attributes of a Builder to be
    callable objects that return generated strings, or dictionaries
    that map a source file suffix to the right prefix/suffix.

  - Support a MAXLINELINELENGTH construction variable on Win32 systems
    to control when a temporary file is used for long command lines.

  - Make how we build .rpm packages not depend on the installation
    locations from the distutils being used.

  - When deducing a target Node, create it directly from the first
    source Node, not by trying to create the right string to pass to
    arg2nodes().

  - Add support for SWIG.

  From Bram Moolenaar:

  - Test portability fixes for FreeBSD.

  From Gary Oberbrunner:

  - Report the target being built in error messages when building
    multiple sources from different extensions, or when the target file
    extension can't be deduced, or when we don't have an action for a
    file suffix.

  - Provide helpful error messages when the arguments to env.Install()
    are incorrect.

  - Fix the value returned by the Node.prevsiginfo() method to conform
    to a previous change when checking whether a node is current.

  - Supply a stack trace if the Taskmaster catches an exception.

  - When using a temporary file for a long link line on Win32 systems,
    (also) print the command line that is being executed through the
    temporary file.

  - Initialize the LIB environment variable when using the Intel
    compiler (icl).

  - Documentation fixes:  better explain the AlwaysBuild() function.

  From Laurent Pelecq:

  - When the -debug=pdb option is specified, use pdb.Pdb().runcall() to
    call pdb directly, don't call Python recursively.

  From Ben Scott:

  - Add support for a platform-independent CPPDEFINES variable.

  From Christoph Wiedemann:

  - Have the g++ Tool actually use g++ in preference to c++.

  - Have the gcc Tool actually use gcc in preference to cc.

  - Add a gnutools.py test of the GNU tool chain.

  - Be smarter about linking: use $CC by default and $CXX only if we're
    linking with any C++ objects.

  - Avoid SCons hanging when a piped command has a lot of output to read.

  - Add QT support for preprocessing .ui files into .c files.



RELEASE 0.90 - Wed, 25 Jun 2003 14:24:52 -0500

  From Chad Austin:

  - Fix the _concat() documentation, and add a test for it.

  - Portability fixes for non-GNU versions of lex and yacc.

  From Matt Balvin:

  - Fix handling of library prefixes when the subdirectory matches
    the prefix.

  From Timothee Bessett:

  - Add an M4 Builder.

  From Charles Crain:

  - Use '.lnk' as the suffix on the temporary file for linking long
    command lines (necessary for the Phar Lap linkloc linker).

  - Save non-string Options values as their actual type.

  - Save Options string values that contain a single quote correctly.

  - Save any Options values that are changed from the default
    Environment values, not just ones changed on the command line or in
    an Options file.

  - Make closing the Options file descriptor exception-safe.

  From Steven Knight:

  - SCons now enforces (with an error) that construction variables
    must have the same form as valid Python identifiers.

  - Fix man page bugs: remove duplicate AddPostAction() description;
    document no_import_lib; mention that CPPFLAGS does not contain
    $_CPPINCFLAGS; mention that F77FLAGS does not contain $_F77INCFLAGS;
    mention that LINKFLAGS and SHLINKFLAGS contains neither $_LIBFLAGS
    nor $_LIBDIRFLAGS.

  - Eliminate a dependency on the distutils.fancy_getopt module by
    copying and pasting its wrap_text() function directly.

  - Make the Script.Options() subclass match the underlying base class
    implementation.

  - When reporting a target is up to date, quote the target like make
    (backquote-quote) instead of with double quotes.

  - Fix handling of ../* targets when using -U, -D or -u.

  From Steve Leblanc:

  - Don't update the .sconsign files when run with -n.

  From Gary Oberbrunner:

  - Add support for the Intel C Compiler (icl.exe).

  From Anthony Roach

  - Fix Import('*').

  From David Snopek

  - Fix use of SConf in paths with white space in them.

  - Add CheckFunc and CheckType functionality to SConf.

  - Fix use of SConf with Builders that return a list of nodes.

  From David Snopek and Christoph Wiedemann

  - Fix use of the SConf subsystem with SConscriptChdir().

  From Greg Spencer

  - Check for the existence of MS Visual Studio on disk before using it,
    to avoid getting fooled by leftover junk in the registry.

  - Add support for MSVC++ .NET.

  - Add support for MS Visual Studio project files (DSP, DSW,
    SLN and VCPROJ files).

  From Christoph Wiedemann

  - SConf now works correctly when the -n and -q options are used.



RELEASE 0.14 - Wed, 21 May 2003 05:16:32 -0500

  From Chad Austin:

  - Use .dll (not .so) for shared libraries on Cygwin; use -fPIC
    when compiling them.

  - Use 'rm' to remove files under Cygwin.

  - Add a PLATFORM variable to construction environments.

  - Remove the "platform" argument from tool specifications.

  - Propogate PYTHONPATH when running the regression tests so distutils
    can be found in non-standard locations.

  - Using MSVC long command-line linking when running Cygwin.

  - Portability fixes for a lot of tests.

  - Add a Value Node class for dependencies on in-core Python values.

  From Allen Bierbaum:

  - Pass an Environment to the Options validator method, and
    add an Options.Save() method.

  From Steve Christensen:

  - Add an optional sort function argument to the GenerateHelpText()
    Options function.

  - Evaluate the "varlist" variables when computing the signature of a
    function action.

  From Charles Crain:

  - Parse the source .java files for class names (including inner class
    names) to figure out the target .class files that will be created.

  - Make Java support work with Repositories and SConscriptChdir(0).

  - Pass Nodes, not strings, to Builder emitter functions.

  - Refactor command-line interpolation and signature calculation
    so we can use real Node attributes.

  From Steven Knight:

  - Add Java support (javac, javah, jar and rmic).

  - Propagate the external SYSTEMROOT environment variable into ENV on
    Win32 systems, so external commands that use sockets will work.

  - Add a .posix attribute to PathList expansions.

  - Check out CVS source files using POSIX path names (forward slashes
    as separators) even on Win32.

  - Add Node.clear() and Node.FS.Entry.clear() methods to wipe out a
    Node's state, allowing it to be re-evaluated by continuous
    integration build interfaces.

  - Change the name of the Set{Build,Content}SignatureType() functions
    to {Target,Source}Signatures().  Deprecate the old names but support
    them for backwards compatibility.

  - Add internal SCons.Node.FS.{Dir,File}.Entry() methods.

  - Interpolate the null string if an out-of-range subscript is used
    for a construction variable.

  - Fix the internal Link function so that it properly links or copies
    files in subsidiary BuildDir directories.

  - Refactor the internal representation of a single execution instance
    of an action to eliminate redundant signature calculations.

  - Eliminate redundant signature calculations for Nodes.

  - Optimize out calling hasattr() before accessing attributes.

  - Say "Cleaning targets" (not "Building...") when the -c option is
    used.

  From Damyan Pepper:

  - Quote the "Entering directory" message like Make.

  From Stefan Reichor:

  - Add support for using Ghostscript to convert Postscript to PDF files.

  From Anthony Roach:

  - Add a standalone "Alias" function (separate from an Environment).

  - Make Export() work for local variables.

  - Support passing a dictionary to Export().

  - Support Import('*') to import everything that's been Export()ed.

  - Fix an undefined exitvalmap on Win32 systems.

  - Support new SetOption() and GetOption() functions for setting
    various command-line options from with an SConscript file.

  - Deprecate the old SetJobs() and GetJobs() functions in favor of
    using the new generic {Set,Get}Option() functions.

  - Fix a number of tests that searched for a Fortran compiler using the
    external PATH instead of what SCons would use.

  - Fix the interaction of SideEffect() and BuildDir() so that (for
    example) PDB files get put correctly in a BuildDir().

  From David Snopek:

  - Contribute the "Autoscons" code for Autoconf-like checking for
    the existence of libraries, header files and the like.

  - Have the Tool() function add the tool name to the $TOOLS
    construction variable.

  From Greg Spencer:

  - Support the C preprocessor #import statement.

  - Allow the SharedLibrary() Builder on Win32 systems to be able to
    register a newly-built dll using regsvr32.

  - Add a Builder for Windows type library (.tlb) files from IDL files.

  - Add an IDL scanner.

  - Refactor the Fortran, C and IDL scanners to share common logic.

  - Add .srcpath and .srcdir attributes to $TARGET and $SOURCE.

  From Christoph Wiedemann:

  - Integrate David Snopek's "Autoscons" code as the new SConf
    configuration subsystem, including caching of values between
    runs (using normal SCons dependency mechanisms), tests, and
    documentation.



RELEASE 0.13 - Mon, 31 Mar 2003 20:22:00 -0600

  From Charles Crain:

  - Fix a bug when BuildDir(duplicate=0) is used and SConscript
    files are called from within other SConscript files.

  - Support (older) versions of Perforce which don't set the Windows
    registry.



RELEASE 0.12 - Thu, 27 Mar 2003 23:52:09 -0600

  From Charles Crain:

  - Added support for the Perforce source code management system.

  - Fix str(Node.FS) so that it returns a path relative to the calling
    SConscript file's directory, not the top-level directory.

  - Added support for a separate src_dir argument to SConscript()
    that allows explicit specification of where the source files
    for an SConscript file can be found.

  - Support more easily re-usable flavors of command generators by
    calling callable variables when strings are expanded.

  From Steven Knight:

  - Added an INSTALL construction variable that can be set to a function
    to control how the Install() and InstallAs() Builders install files.
    The default INSTALL function now copies, not links, files.

  - Remove deprecated features:  the "name" argument to Builder objects,
    and the Environment.Update() method.

  - Add an Environment.SourceCode() method to support fetching files
    from source code systems.  Add factory methods that create Builders
    to support BitKeeper, CVS, RCS, and SCCS.  Add support for fetching
    files from RCS or SCCS transparently (like GNU Make).

  - Make the internal to_String() function more efficient.

  - Make the error message the same as other build errors when there's a
    problem unlinking a target file in preparation for it being built.

  - Make TARGET, TARGETS, SOURCE and SOURCES reserved variable names and
    warn if the user tries to set them in a construction environment.

  - Add support for Tar and Zip files.

  - Better documentation of the different ways to export variables to a
    subsidiary SConscript file.  Fix documentation bugs in a tools
    example, places that still assumed SCons split strings on white
    space, and typos.

  - Support fetching arbitrary files from the TARGETS or SOURCES lists
    (e.g. ${SOURCES[2]}) when calculating the build signature of a
    command.

  - Don't silently swallow exceptions thrown by Scanners (or other
    exceptions while finding a node's dependent children).

  - Push files to CacheDir() before calling the superclass built()
    method (which may clear the build signature as part of clearing
    cached implicit dependencies, if the file has a source scanner).
    (Bug reported by Jeff Petkau.)

  - Raise an internal error if we attempt to push a file to CacheDir()
    with a build signature of None.

  - Add an explicit Exit() function for terminating early.

  - Change the documentation to correctly describe that the -f option
    doesn't change to the directory in which the specified file lives.

  - Support changing directories locally with SConscript directory
    path names relative to any SConstruct file specified with -f.
    This allows you to build in another directory by simply changing
    there and pointing at the SConstruct file in another directory.

  - Change the default SConscriptChdir() behavior to change to the
    SConscript directory while it's being read.

  - Fix an exception thrown when the -U option was used with no
    Default() target specified.

  - Fix -u so that it builds things in corresponding build directories
    when used in a source directory.

  From Lachlan O'Dea:

  - Add SharedObject() support to the masm tool.

  - Fix WhereIs() to return normalized paths.

  From Jeff Petkau:

  - Don't copy a built file to a CacheDir() if it's already there.

  - Avoid partial copies of built files in a CacheDir() by copying
    to a temporary file and renaming.

  From Anthony Roach:

  - Fix incorrect dependency-cycle errors when an Aliased source doesn't
    exist.



RELEASE 0.11 - Tue, 11 Feb 2003 05:24:33 -0600

  From Chad Austin:

  - Add support for IRIX and the SGI MIPSPro tool chain.

  - Support using the MSVC tool chain when running Cygwin Python.

  From Michael Cook:

  - Avoid losing signal bits in the exit status from a command,
    helping terminate builds on interrupt (CTRL+C).

  From Charles Crain:

  - Added new AddPreAction() and AddPostAction() functions that support
    taking additional actions before or after building specific targets.

  - Add support for the PharLap ETS tool chain.

  From Steven Knight:

  - Allow Python function Actions to specify a list of construction
    variables that should be included in the Action's signature.

  - Allow libraries in the LIBS variable to explicitly include the prefix
    and suffix, even when using the GNU linker.
    (Bug reported by Neal Becker.)

  - Use DOS-standard CR-LF line endings in the scons.bat file.
    (Bug reported by Gary Ruben.)

  - Doc changes:  Eliminate description of deprecated "name" keyword
    argument from Builder definition (reported by Gary Ruben).

  - Support using env.Append() on BUILDERS (and other dictionaries).
    (Bug reported by Bj=F6rn Bylander.)

  - Setting the BUILDERS construction variable now properly clears
    the previous Builder attributes from the construction Environment.
    (Bug reported by Bj=F6rn Bylander.)

  - Fix adding a prefix to a file when the target isn't specified.
    (Bug reported by Esa Ilari Vuokko.)

  - Clean up error messages from problems duplicating into read-only
    BuildDir directories or into read-only files.

  - Add a CommandAction.strfunction() method, and add an "env" argument
    to the FunctionAction.strfunction() method, so that all Action
    objects have strfunction() methods, and the functions for building
    and returning a string both take the same arguments.

  - Add support for new CacheDir() functionality to share derived files
    between builds, with related options --cache-disable, --cache-force,
    and --cache-show.

  - Change the default behavior when no targets are specified to build
    everything in the current directory and below (like Make).  This
    can be disabled by specifying Default(None) in an SConscript.

  - Revamp SCons installation to fix a case-sensitive installation
    on Win32 systems, and to add SCons-specific --standard-lib,
    --standalone-lib, and --version-lib options for easier user
    control of where the libraries get installed.

  - Fix the ability to directly import and use Platform and Tool modules
    that have been implicitly imported into an Environment().

  - Add support for allowing an embedding interface to annotate a node
    when it's created.

  - Extend the SConscript() function to accept build_dir and duplicate
    keyword arguments that function like a BuildDir() call.

  From Steve Leblanc:

  - Fix the output of -c -n when directories are involved, so it
    matches -c.

  From Anthony Roach:

  - Use a different shared object suffix (.os) when using gcc so shared
    and static objects can exist side-by-side in the same directory.

  - Allow the same object files on Win32 to be linked into either
    shared or static libraries.

  - Cache implicit cache values when using --implicit-cache.



RELEASE 0.10 - Thu, 16 Jan 2003 04:11:46 -0600

  From Derrick 'dman' Hudson:

  - Support Repositories on other file systems by symlinking or
    copying files when hard linking won't work.

  From Steven Knight:

  - Remove Python bytecode (*.pyc) files from the scons-local packages.

  - Have FunctionActions print a description of what they're doing
    (a representation of the Python call).

  - Fix the Install() method so that, like other actions, it prints
    what would have happened when the -n option is used.

  - Don't create duplicate source files in a BuildDir when the -n
    option is used.

  - Refactor the Scanner interface to eliminate unnecessary Scanner
    calls and make it easier to write efficient scanners.

  - Added a "recursive" flag to Scanner creation that specifies the
    Scanner should be invoked recursively on dependency files returned
    by the scanner.

  - Significant performance improvement from using a more efficient
    check, throughout the code, for whether a Node has a Builder.

  - Fix specifying only the source file to MultiStepBuilders such as
    the Program Builder.  (Bug reported by Dean Bair.)

  - Fix an exception when building from a file with the same basename as
    the subdirectory in which it lives.  (Bug reported by Gerard Patel.)

  - Fix automatic deduction of a target file name when there are
    multiple source files specified; the target is now deduced from just
    the first source file in the list.

  - Documentation fixes: better initial explanation of SConscript files;
    fix a misformatted "table" in the StaticObject explanation.

  From Steven Knight and Steve Leblanc:

  - Fix the -c option so it will remove symlinks.

  From Steve Leblanc:

  - Add a Clean() method to support removing user-specified targets
    when using the -c option.

  - Add a development script for running SCons through PyChecker.

  - Clean up things found by PyChecker (mostly unnecessary imports).

  - Add a script to use HappyDoc to create HTML class documentation.

  From Lachlan O'Dea:

  - Make the Environment.get() method return None by default.

  From Anthony Roach:

  - Add SetJobs() and GetJobs() methods to allow configuration of the
    number of default jobs (still overridden by -j).

  - Convert the .sconsign file format from ASCII to a pickled Python
    data structure.

  - Error message cleanups:  Made consistent the format of error
    messages (now all start with "scons: ***") and warning messages (now
    all start with "scons: warning:").  Caught more cases with the "Do
    not know how to build" error message.

  - Added support for the MinGW tool chain.

  - Added a --debug=includes option.



RELEASE 0.09 - Thu,  5 Dec 2002 04:48:25 -0600

  From Chad Austin:

  - Add a Prepend() method to Environments, to append values to
    the beginning of construction variables.

  From Matt Balvin:

  - Add long command-line support to the "lib" Tool (Microsoft library
    archiver), too.

  From Charles Crain:

  - Allow $$ in a string to be passed through as $.

  - Support file names with odd characters in them.

  - Add support for construction variable substition on scanner
    directories (in CPPPATH, F77PATH, LIBPATH, etc.).

  From Charles Crain and Steven Knight:

  - Add Repository() functionality, including the -Y option.

  From Steven Knight:

  - Fix auto-deduction of target names so that deduced targets end
    up in the same subdirectory as the source.

  - Don't remove source files specified on the command line!

  - Suport the Intel Fortran Compiler (ifl.exe).

  - Supply an error message if there are no command-line or
    Default() targets specified.

  - Fix the ASPPCOM values for the GNU assembler.
    (Bug reported by Brett Polivka.)

  - Fix an exception thrown when a Default() directory was specified
    when using the -U option.

  - Issue a warning when -c can't remove a target.

  - Eliminate unnecessary Scanner calls by checking for the
    existence of a file before scanning it.  (This adds a generic
    hook to check an arbitrary condition before scanning.)

  - Add explicit messages to tell when we're "Reading SConscript files
    ...," "done reading SConscript files," "Building targets," and
    "done building targets."  Add a -Q option to supress these.

  - Add separate $SHOBJPREFIX and $SHOBJSUFFIX construction variables
    (by default, the same as $OBJPREFIX and $OBJSUFFIX).

  - Add Make-like error messages when asked to build a source file,
    and before trying to build a file that doesn't have all its source
    files (including when an invalid drive letter is used on WIN32).

  - Add an scons-local-{version} package (in both .tar.gz and .zip
    flavors) to help people who want to ship SCons as a stand-alone
    build tool in their software packages.

  - Prevent SCons from unlinking files in certain situations when
    the -n option is used.

  - Change the name of Tool/lib.py to Tool/mslib.py.

  From Steven Knight and Anthony Roach:

  - Man page:  document the fact that Builder calls return Node objects.

  From Steve LeBlanc:

  - Refactor option processing to use our own version of Greg Ward's
    Optik module, modified to run under Python 1.5.2.

  - Add a ParseConfig() command to modify an environment based on
    parsing output from a *-config command.

  From Jeff Petkau:

  - Fix interpretation of '#/../foo' on Win32 systems.

  From Anthony Roach:

  - Fixed use of command lines with spaces in their arguments,
    and use of Nodes with spaces in their string representation.

  - Make access and modification times of files in a BuildDir match
    the source file, even when hard linking isn't available.

  - Make -U be case insensitive on Win32 systems.

  - Issue a warning and continue when finding a corrupt .sconsign file.

  - Fix using an alias as a dependency of a target so that if one of the
    alias' dependencies gets rebuilt, the resulting target will, too.

  - Fix differently ordered targets causing unnecessary rebuilds
    on case insensitive systems.

  - Use os.system() to execute external commands whenever the "env"
    utility is available, which is much faster than fork()/exec(),
    and fixes the -j option on several platforms.

  - Fix use of -j with multiple targets.

  - Add an Options() object for friendlier accomodation of command-
    line arguments.

  - Add support for Microsoft VC++ precompiled header (.pch) files,
    debugger (.pdb) files, and resource (.rc) files.

  - Don't compute the $_CPPINCFLAGS, $_F77INCFLAGS, $_LIBFLAGS and
    $_LIBDIRFLAGS variables each time a command is executed, define
    them so they're computed only as needed.  Add a new _concat
    function to the Environment that allows people to define their
    own similar variables.

  - Fix dependency scans when $LIBS is overridden.

  - Add EnsurePythonVersion() and EnsureSConsVersion() functions.

  - Fix the overly-verbose stack trace on ListBuilder build errors.

  - Add a SetContentSignatureType() function, allowing use of file
    timestamps instead of MD5 signatures.

  - Make -U and Default('source') fail gracefully.

  - Allow the File() and Dir() methods to take a path-name string as
    the starting directory, in addition to a Dir object.

  - Allow the command handler to be selected via the SPAWN, SHELL
    and ESCAPE construction variables.

  - Allow construction variables to be overridden when a Builder
    is called.

  From sam th:

  - Dynamically check for the existence of utilities with which to
    initialize Environments by default.



RELEASE 0.08 - Mon, 15 Jul 2002 12:08:51 -0500

  From Charles Crain:

  - Fixed a bug with relative CPPPATH dirs when using BuildDir().
    (Bug reported by Bob Summerwill.)

  - Added a warnings framework and a --warn option to enable or
    disable warnings.

  - Make the C scanner warn users if files referenced by #include
    directives cannot be found and --warn=dependency is specified.

  - The BUILDERS construction variable should now be a dictionary
    that maps builder names to actions.  Existing uses of lists,
    and the Builder name= keyword argument, generate warnings
    about use of deprecated features.

  - Removed the "shared" keyword argument from the Object and
    Library builders.

  - Added separated StaticObject, SharedObject, StaticLibrary and
    SharedLibrary builders.  Made Object and Library synonyms for
    StaticObject and StaticLibrary, respectively.

  - Add LIBS and LIBPATH dependencies for shared libraries.

  - Removed support for the prefix, suffix and src_suffix arguments
    to Builder() to be callable functions.

  - Fix handling file names with multiple dots.

  - Allow a build directory to be outside of the SConstruct tree.

  - Add a FindFile() function that searches for a file node with a
    specified name.

  - Add $CPPFLAGS to the shared-object command lines for g++ and gcc.

  From Charles Crain and Steven Knight:

  - Add a "tools=" keyword argument to Environment instantiation,
    and a separate Tools() method, for more flexible specification
    of tool-specific environment changes.

  From Steven Knight:

  - Add a "platform=" keyword argument to Environment instantiation,
    and a separate Platform() method, for more flexible specification
    of platform-specific environment changes.

  - Updated README instructions and setup.py code to catch an
    installation failure from not having distutils installed.

  - Add descriptions to the -H help text for -D, -u and -U so
    people can tell them apart.

  - Remove the old feature of automatically splitting strings
    of file names on white space.

  - Add a dependency Scanner for native Fortran "include" statements,
    using a new "F77PATH" construction variable.

  - Fix C #include scanning to detect file names with characters like
    '-' in them.

  - Add more specific version / build output to the -v option.

  - Add support for the GNU as, Microsoft masm, and nasm assemblers.

  - Allow the "target" argument to a Builder call to be omitted, in
    which case the target(s) are deduced from the source file(s) and the
    Builder's specified suffix.

  - Add a tar archive builder.

  - Add preliminary support for the OS/2 Platform, including the icc
    and ilink Tools.

  From Jeff Petkau:

  - Fix --implicit-cache if the scanner returns an empty list.

  From Anthony Roach:

  - Add a "multi" keyword argument to Builder creation that specifies
    it's okay to call the builder multiple times for a target.

  - Set a "multi" on Aliases so multiple calls will append to an Alias.

  - Fix emitter functions' use of path names when using BuildDir or
    in subdirectories.

  - Fix --implicit-cache causing redundant rebuilds when the header
    file list changed.

  - Fix --implicit-cache when a file has no implicit dependencies and
    its source is generated.

  - Make the drive letters on Windows always be the same case, so that
    changes in the case of drive letters don't cause a rebuild.

  - Fall back to importing the SCons.TimeStamp module if the SCons.MD5
    module can't be imported.

  - Fix interrupt handling to guarantee that a single interrupt will
    halt SCons both when using -j and not.

  - Fix .sconsign signature storage so that output files of one build
    can be safely used as input files to another build.

  - Added a --debug=time option to print SCons execution times.

  - Print an error message if a file can't be unlinked before being
    built, rather than just silently terminating the build.

  - Add a SideEffect() method that can be used to tell the build
    engine that a given file is created as a side effect of building
    a target.  A file can be specified as a side effect of more than
    one build comand, in which case the commands will not be executed
    simultaneously.

  - Significant performance gains from not using our own version of
    the inefficient stock os.path.splitext() method, caching source
    suffix computation, code cleanup in MultiStepBuilder.__call__(),
    and replicating some logic in scons_subst().

  - Add --implicit-deps-changed and --implicit-deps-unchanged options.

  - Add a GetLaunchDir() function.

  - Add a SetBuildSignatureType() function.

  From Zed Shaw:

  - Add an Append() method to Environments, to append values to
    construction variables.

  - Change the name of Update() to Replace().  Keep Update() as a
    deprecated synonym, at least for now.

  From Terrel Shumway:

  - Use a $PYTHON construction variable, initialized to sys.executable,
    when using Python to build parts of the SCons packages.

  - Use sys.prefix, not sys.exec_prefix, to find pdb.py.



RELEASE 0.07 - Thu,  2 May 2002 13:37:16 -0500

  From Chad Austin:

  - Changes to build SCons packages on IRIX (and other *NIces).

  - Don't create a directory Node when a file already exists there,
    and vice versa.

  - Add 'dirs' and 'names' keyword arguments to SConscript for
    easier specification of subsidiary SConscript files.

  From Charles Crain:

  - Internal cleanup of environment passing to function Actions.

  - Builders can now take arbitrary keyword arguments to create
    attributes to be passed to: command generator functions,
    FunctionAction functions, Builder emitter functions (below),
    and prefix/suffix generator functions (below).

  - Command generator functions can now return ANYTHING that can be
    converted into an Action (a function, a string, a CommandGenerator
    instance, even an ActionBase instance).

  - Actions now call get_contents() with the actual target and source
    nodes used for the build.

  - A new DictCmdGenerator class replaces CompositeBuilder to support
    more flexible Builder behavior internally.

  - Builders can now take an emitter= keyword argument.  An emitter
    is a function that takes target, source, and env argument, then
    return a 2-tuple of (new sources, new targets).  The emitter is
    called when the Builder is __call__'ed, allowing a user to modify
    source and target lists.

  - The prefix, suffix and src_suffix Builder arguments now take a
    callable as well a string.  The callable is passed the Environment
    and any extra Builder keyword arguments and is expected to return
    the appropriate prefix or suffix.

  - CommandActions can now be a string, a list of command + argument
    strings, or a list of commands (strings or lists).

  - Added shared library support.  The Object and Library Builders now
    take a "shared=1" keyword argument to specify that a shared object
    or shared library should be built.  It is an error to try to build
    static objects into a shared library or vice versa.

  - Win32 support for .def files has been added.  Added the Win32-specific
    construction variables $WIN32DEFPREFIX, $WIN32DEFSUFFIX,
    $WIN32DLLPREFIX and $WIN32IMPLIBPREFIX.  When building a .dll,
    the new construction variable $WIN32_INSERT_DEF, controls whether
    the appropriately-named .def file is inserted into the target
    list (if not already present).  A .lib file is always added to
    a Library build if not present in the list of targets.

  - ListBuilder now passes all targets to the action, not just the first.

  - Fix so that -c now deletes generated yacc .h files.

  - Builder actions and emitter functions can now be initialized, through
    construction variables, to things other than strings.

  - Make top-relative '#/dir' lookups work like '#dir'.

  - Fix for relative CPPPATH directories in subsidiary SConscript files
    (broken in 0.06).

  - Add a for_signature argument to command generators, so that
    generators that need to can return distinct values for the
    command signature and for executing the command.

  From Alex Jacques:

  - Create a better scons.bat file from a py2bat.py script on the Python
    mailing list two years ago (modeled after pl2bat.pl).

  From Steven Knight:

  - Fix so that -c -n does *not* remove the targets!

  - Man page:  Add a hierarchical libraries + Program example.

  - Support long MSVC linker command lines through a builder action
    that writes to a temporary file and uses the magic MSVC "link @file"
    argument syntax if the line is longer than 2K characters.

  - Fix F77 command-line options on Win32 (use /Fo instead of -o).

  - Use the same action to build from .c (lower case) and .C (upper
    case) files on case-insensitive systems like Win32.

  - Support building a PDF file directly from a TeX or LaTeX file
    using pdftex or pdflatex.

  - Add a -x option to runtest.py to specify the script being tested.
    A -X option indicates it's an executable, not a script to feed
    to the Python interpreter.

  - Add a Split() function (identical to SCons.Util.argmunge()) for use
    in the next release, when Builders will no longer automatically split
    strings on white space.

  From Steve Leblanc:

  - Add the SConscriptChdir() method.

  From Anthony Roach:

  - Fix --debug=tree when used with directory targets.

  - Significant internal restructuring of Scanners and Taskmaster.

  - Added new --debug=dtree option.

  - Fixes for --profile option.

  - Performance improvement in construction variable substitution.

  - Implemented caching of content signatures, plus added --max-drift
    option to control caching.

  - Implemented caching of dependency signatures, enabled by new
    --implicit-cache option.

  - Added abspath construction variable modifier.

  - Added $SOURCE variable as a synonym for $SOURCES[0].

  - Write out .sconsign files on error or interrupt so intermediate
    build results are saved.

  - Change the -U option to -D.  Make a new -U that builds just the
    targets from the local SConscript file.

  - Fixed use of sys.path so Python modules can be imported from
    the SConscript directory.

  - Fix for using Aliases with the -u, -U and -D options.

  - Fix so that Nodes can be passed to SConscript files.

  From Moshe Zadka:

  - Changes for official Debian packaging.



RELEASE 0.06 - Thu, 28 Mar 2002 01:24:29 -0600

  From Charles Crain:

  - Fix command generators to expand construction variables.

  - Make FunctionAction arguments be Nodes, not strings.

  From Stephen Kennedy:

  - Performance:  Use a dictionary, not a list, for a Node's parents.

  From Steven Knight:

  - Add .zip files to the packages we build.

  - Man page:  document LIBS, fix a typo, document ARGUMENTS.

  - Added RANLIB and RANLIBFLAGS construction variables.  Only use them
    in ARCOM if there's a "ranlib" program on the system.

  - Add a configurable CFILESUFFIX for the Builder of .l and .y files
    into C files.

  - Add a CXXFile Builder that turns .ll and .yy files into .cc files
    (configurable via a CXXFILESUFFIX construction variable).

  - Use the POSIX-standard lex -t flag, not the GNU-specific -o flag.
    (Bug reported by Russell Christensen.)

  - Fixed an exception when CPPPATH or LIBPATH is a null string.
    (Bug reported by Richard Kiss.)

  - Add a --profile=FILE option to make profiling SCons easier.

  - Modify the new DVI builder to create .dvi files from LaTeX (.ltx
    and .latex) files.

  - Add support for Aliases (phony targets).

  - Add a WhereIs() method for searching for path names to executables.

  - Add PDF and PostScript document builders.

  - Add support for compiling Fortran programs from a variety of
    suffixes (a la GNU Make):  .f, .F, .for, .FOR, .fpp and .FPP

  - Support a CPPFLAGS variable on all default commands that use the
    C preprocessor.

  From Steve Leblanc:

  - Add support for the -U option.

  - Allow CPPPATH, LIBPATH and LIBS to be specified as white-space
    separated strings.

  - Add a document builder to create .dvi files from TeX (.tex) files.

  From Anthony Roach:

  - Fix:  Construction variables with values of 0 were incorrectly
    interpolated as ''.

  - Support env['VAR'] to fetch construction variable values.

  - Man page:  document Precious().



RELEASE 0.05 - Thu, 21 Feb 2002 16:50:03 -0600

  From Chad Austin:

  - Set PROGSUFFIX to .exe under Cygwin.

  From Charles Crain:

  - Allow a library to specified as a command-line source file, not just
    in the LIBS construction variable.

  - Compensate for a bug in os.path.normpath() that returns '' for './'
    on WIN32.

  - More performance optimizations:  cache #include lines from files,
    eliminate unnecessary calls.

  - If a prefix or suffix contains white space, treat the resulting
    concatenation as separate arguments.

  - Fix irregularities in the way we fetch DevStudio information from
    the Windows registry, and in our registry error handling.

  From Steven Knight:

  - Flush stdout after print so it intermixes correctly with stderr
    when redirected.

  - Allow Scanners to return a list of strings, and document how to
    write your own Scanners.

  - Look up implicit (scanned) dependencies relative to the directory
    of file being scanned.

  - Make writing .sconsign files more robust by first trying to write
    to a temp file that gets renamed.

  - Create all of the directories for a list of targets before trying
    to build any of the targets.

  - WIN32 portability fixes in tests.

  - Allow the list of variables exported to an SConscript file to be
    a UserList, too.

  - Document the overlooked LIBPATH construction variable.
    (Bug reported by Eicke Godehardt.)

  - Fix so that Ignore() ignores indirect, implicit dependencies
    (included files), not just direct dependencies.

  - Put the man page in the Debian distribution.

  - Run HTML docs through tidy to clean up the HTML (for Konqueror).

  - Add preliminary support for Unicode strings.

  - Efficiency:  don't scan dependencies more than once during the
    walk of a tree.

  - Fix the -c option so it doesn't stop removing targets if one doesn't
    already exist.
    (Bug reported by Paul Connell.)

  - Fix the --debug=pdb option when run on Windows NT.
    (Bug reported by Paul Connell.)

  - Add support for the -q option.

  From Steve Leblanc:

  - Add support for the -u option.

  - Add .cc and .hh file suffixes to the C Scanner.

  From Anthony Roach:

  - Make the scons script return an error code on failures.

  - Add support for using code to generate a command to build a target.



RELEASE 0.04 - Wed, 30 Jan 2002 11:09:42 -0600

  From Charles Crain:

  - Significant performance improvements in the Node.FS and
    Scanner subsystems.

  - Fix signatures of binary files on Win32 systems.

  - Allow LIBS and LIBPATH to be strings, not just arrays.

  - Print a traceback if a Python-function builder throws an exception.

  From Steven Knight:

  - Fix using a directory as a Default(), and allow Default() to
    support white space in file names for strings in arrays.

  - Man page updates:  corrected some mistakes, documented various
    missing Environment methods, alphabetized the construction
    variables and other functions, defined begin and end macros for
    the example sections, regularized white space separation, fixed
    the use of Export() in the Multiple Variants example.

  - Function action fixes:  None is now a successful return value.
    Exceptions are now reported.  Document function actions.

  - Add 'Action' and 'Scanner' to the global keywords so SConscript
    files can use them too.

  - Removed the Wrapper class between Nodes and Walkers.

  - Add examples using Library, LIBS, and LIBPATH.

  - The C Scanner now always returns a sorted list of dependencies
    so order changes don't cause unnecessary rebuilds.

  - Strip $(-$) bracketed text from command lines.  Use this to
    surround $_INCDIRS and $_LIBDIRS so we don't rebuild in response
    to changes to -I or -L options.

  - Add the Ignore() method to ignore dependencies.

  - Provide an error message when a nonexistent target is specified
    on the command line.

  - Remove targets before building them, and add an Environment
    Precious() method to override that.

  - Eliminate redundant calls to the same builder when the target is a
    list of targets:  Add a ListBuilder class that wraps Builders to
    handle lists atomically.  Extend the Task class to support building
    and updating multiple targets in a single Task.  Simplify the
    interface between Task and Taskmaster.

  - Add a --debug=pdb option to re-run SCons under the Python debugger.

  - Only compute a build signature once for each node.

  - Changes to our sys.path[] manipulation to support installation into
    an arbitrary --prefix value.

  From Steve Leblanc:

  - Add var=value command-line arguments.



RELEASE 0.03 - Fri, 11 Jan 2002 01:09:30 -0600

  From Charles Crain:

  - Performance improvements in the Node.FS and Sig.Calculator classes.

  - Add the InstallAs() method.

  - Execute commands through an external interpreter (sh, cmd.exe, or
    command.com) to handle redirection metacharacters.

  - Allow the user to supply a command handler.

  From Steven Knight:

  - Search both /usr/lib and /usr/local/lib for scons directories by
    adding them both to sys.path, with whichever is in sys.prefix first.

  - Fix interpreting strings of multiple white-space separated file names
    as separate file names, allowing prefixes and suffixes to be appended
    to each individually.

  - Refactor to move CompositeBuilder initialization logic from the
    factory wrapper to the __init__() method, and allow a Builder to
    have both an action and a src_builder (or array of them).

  - Refactor BuilderBase.__call__() to separate Node creation/lookup
    from initialization of the Node's builder information.

  - Add a CFile Builder object that supports turning lex (.l) and
    yacc (.y) files into .c files.

  - Document: variable interpretation attributes; how to propogate
    the user's environment variables to executed commands; how to
    build variants in multiple BuildDirs.

  - Collect String, Dict, and List type-checking in common utility
    routines so we can accept User{String,Dict,List}s all over.

  - Put the Action factory and classes into their own module.

  - Use one CPlusPlusAction in the Object Builder's action dictionary,
    instead of letting it create multiple identical instances.

  - Document the Install() and InstallAs() methods.

  From Steve Leblanc:

  - Require that a Builder be given a name argument, supplying a
    useful error message when it isn't.

  From Anthony Roach:

  - Add a "duplicate" keyword argument to BuildDir() that can be set
    to prevent linking/copying source files into build directories.

  - Add a "--debug=tree" option to print an ASCII dependency tree.

  - Fetch the location of the Microsoft Visual C++ compiler(s) from
    the Registry, instead of hard-coding the location.

  - Made Scanner objects take Nodes, not path names.

  - Have the C Scanner cache the #include file names instead of
    (re-)scanning the file each time it's called.

  - Created a separate class for parent "nodes" of file system roots,
    eliminating the need for separate is-parent-null checks everywhere.

  - Removed defined __hash__() and __cmp() methods from FS.Entry, in
    favor of Python's more efficient built-in identity comparisons.



RELEASE 0.02 - Sun, 23 Dec 2001 19:05:09 -0600

  From Charles Crain:

  - Added the Install(), BuildDir(), and Export() methods.

  - Fix the -C option by delaying setting the top of the FS tree.

  - Avoid putting the directory path on the libraries in the LIBS
    construction variable.

  - Added a GetBuildPath() method to return the full path to the
    Node for a specified string.

  - Fixed variable substitution in CPPPATH and LIBPATH.

  From Steven Knight:

  - Fixed the version comment in the scons.bat (the UNIX geek used
    # instead of @rem).

  - Fix to setup.py so it doesn't require a sys.argv[1] argument.

  - Provide make-like warning message for "command not found" and
    similar errors.

  - Added an EXAMPLES section to the man page.

  - Make Default() targets properly relative to their SConscript
    file's subdirectory.

  From Anthony Roach:

  - Documented CXXFLAGS, CXXCOM, and CPPPATH.

  - Fixed SCONS_LIB_DIR to work as documented.

  - Made Default() accept Nodes as arguments.

  - Changed Export() to make it easier to use.

  - Added the Import() and Return() methods.



RELEASE 0.01 - Thu Dec 13 19:25:23 CST 2001

A brief overview of important functionality available in release 0.01:

  - C and C++ compilation on POSIX and Windows NT.

  - Automatic scanning of C/C++ source files for #include dependencies.

  - Support for building libraries; setting construction variables
    allows creation of shared libraries.

  - Library and C preprocessor search paths.

  - File changes detected using MD5 signatures.

  - User-definable Builder objects for building files.

  - User-definable Scanner objects for scanning for dependencies.

  - Parallel build (-j) support.

  - Dependency cycles detected.

  - Linux packages available in RPM and Debian format.

  - Windows installer available.

__COPYRIGHT__
__FILE__ __REVISION__ __DATE__ __DEVELOPER__