summaryrefslogtreecommitdiffstats
path: root/Mac/BuildScript/build-installer.py
blob: ef822d585495ad74ec6fd6e8ec5df58f57e1538e (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
#!/usr/bin/env python
"""
This script is used to build "official" universal installers on Mac OS X.
It requires at least Mac OS X 10.5, Xcode 3, and the 10.4u SDK for
32-bit builds.  64-bit or four-way universal builds require at least
OS X 10.5 and the 10.5 SDK.

Please ensure that this script keeps working with Python 2.5, to avoid
bootstrap issues (/usr/bin/python is Python 2.5 on OSX 10.5).  Sphinx,
which is used to build the documentation, currently requires at least
Python 2.4.

In addition to what is supplied with OS X 10.5+ and Xcode 3+, the script
requires an installed version of hg and a third-party version of
Tcl/Tk 8.4 (for OS X 10.4 and 10.5 deployment targets) or Tcl/TK 8.5
(for 10.6 or later) installed in /Library/Frameworks.  When installed,
the Python built by this script will attempt to dynamically link first to
Tcl and Tk frameworks in /Library/Frameworks if available otherwise fall
back to the ones in /System/Library/Framework.  For the build, we recommend
installing the most recent ActiveTcl 8.4 or 8.5 version.

32-bit-only installer builds are still possible on OS X 10.4 with Xcode 2.5
and the installation of additional components, such as a newer Python
(2.5 is needed for Python parser updates), hg, and svn (for the documentation
build).

Usage: see USAGE variable in the script.
"""
import platform, os, sys, getopt, textwrap, shutil, stat, time, pwd, grp
try:
    import urllib2 as urllib_request
except ImportError:
    import urllib.request as urllib_request

STAT_0o755 = ( stat.S_IRUSR | stat.S_IWUSR | stat.S_IXUSR
             | stat.S_IRGRP |                stat.S_IXGRP
             | stat.S_IROTH |                stat.S_IXOTH )

STAT_0o775 = ( stat.S_IRUSR | stat.S_IWUSR | stat.S_IXUSR
             | stat.S_IRGRP | stat.S_IWGRP | stat.S_IXGRP
             | stat.S_IROTH |                stat.S_IXOTH )

INCLUDE_TIMESTAMP = 1
VERBOSE = 1

from plistlib import Plist

try:
    from plistlib import writePlist
except ImportError:
    # We're run using python2.3
    def writePlist(plist, path):
        plist.write(path)

def shellQuote(value):
    """
    Return the string value in a form that can safely be inserted into
    a shell command.
    """
    return "'%s'"%(value.replace("'", "'\"'\"'"))

def grepValue(fn, variable):
    variable = variable + '='
    for ln in open(fn, 'r'):
        if ln.startswith(variable):
            value = ln[len(variable):].strip()
            return value[1:-1]
    raise RuntimeError("Cannot find variable %s" % variable[:-1])

_cache_getVersion = None

def getVersion():
    global _cache_getVersion
    if _cache_getVersion is None:
        _cache_getVersion = grepValue(
            os.path.join(SRCDIR, 'configure'), 'PACKAGE_VERSION')
    return _cache_getVersion

def getVersionTuple():
    return tuple([int(n) for n in getVersion().split('.')])

def getVersionMajorMinor():
    return tuple([int(n) for n in getVersion().split('.', 2)])

_cache_getFullVersion = None

def getFullVersion():
    global _cache_getFullVersion
    if _cache_getFullVersion is not None:
        return _cache_getFullVersion
    fn = os.path.join(SRCDIR, 'Include', 'patchlevel.h')
    for ln in open(fn):
        if 'PY_VERSION' in ln:
            _cache_getFullVersion = ln.split()[-1][1:-1]
            return _cache_getFullVersion
    raise RuntimeError("Cannot find full version??")

# The directory we'll use to create the build (will be erased and recreated)
WORKDIR = "/tmp/_py"

# The directory we'll use to store third-party sources. Set this to something
# else if you don't want to re-fetch required libraries every time.
DEPSRC = os.path.join(WORKDIR, 'third-party')
DEPSRC = os.path.expanduser('~/Universal/other-sources')

# Location of the preferred SDK

### There are some issues with the SDK selection below here,
### The resulting binary doesn't work on all platforms that
### it should. Always default to the 10.4u SDK until that
### issue is resolved.
###
##if int(os.uname()[2].split('.')[0]) == 8:
##    # Explicitly use the 10.4u (universal) SDK when
##    # building on 10.4, the system headers are not
##    # useable for a universal build
##    SDKPATH = "/Developer/SDKs/MacOSX10.4u.sdk"
##else:
##    SDKPATH = "/"

SDKPATH = "/Developer/SDKs/MacOSX10.4u.sdk"

universal_opts_map = { '32-bit': ('i386', 'ppc',),
                       '64-bit': ('x86_64', 'ppc64',),
                       'intel':  ('i386', 'x86_64'),
                       '3-way':  ('ppc', 'i386', 'x86_64'),
                       'all':    ('i386', 'ppc', 'x86_64', 'ppc64',) }
default_target_map = {
        '64-bit': '10.5',
        '3-way': '10.5',
        'intel': '10.5',
        'all': '10.5',
}

UNIVERSALOPTS = tuple(universal_opts_map.keys())

UNIVERSALARCHS = '32-bit'

ARCHLIST = universal_opts_map[UNIVERSALARCHS]

# Source directory (assume we're in Mac/BuildScript)
SRCDIR = os.path.dirname(
        os.path.dirname(
            os.path.dirname(
                os.path.abspath(__file__
        ))))

# $MACOSX_DEPLOYMENT_TARGET -> minimum OS X level
DEPTARGET = '10.3'

target_cc_map = {
        '10.3': ('gcc-4.0', 'g++-4.0'),
        '10.4': ('gcc-4.0', 'g++-4.0'),
        '10.5': ('gcc-4.2', 'g++-4.2'),
        '10.6': ('gcc-4.2', 'g++-4.2'),
        '10.7': ('clang', 'clang++'),
        '10.8': ('clang', 'clang++'),
}

CC, CXX = target_cc_map[DEPTARGET]

PYTHON_3 = getVersionTuple() >= (3, 0)

USAGE = textwrap.dedent("""\
    Usage: build_python [options]

    Options:
    -? or -h:            Show this message
    -b DIR
    --build-dir=DIR:     Create build here (default: %(WORKDIR)r)
    --third-party=DIR:   Store third-party sources here (default: %(DEPSRC)r)
    --sdk-path=DIR:      Location of the SDK (default: %(SDKPATH)r)
    --src-dir=DIR:       Location of the Python sources (default: %(SRCDIR)r)
    --dep-target=10.n    OS X deployment target (default: %(DEPTARGET)r)
    --universal-archs=x  universal architectures (options: %(UNIVERSALOPTS)r, default: %(UNIVERSALARCHS)r)
""")% globals()

# Dict of object file names with shared library names to check after building.
# This is to ensure that we ended up dynamically linking with the shared
# library paths and versions we expected.  For example:
#   EXPECTED_SHARED_LIBS['_tkinter.so'] = [
#                       '/Library/Frameworks/Tcl.framework/Versions/8.5/Tcl',
#                       '/Library/Frameworks/Tk.framework/Versions/8.5/Tk']
EXPECTED_SHARED_LIBS = {}

# Instructions for building libraries that are necessary for building a
# batteries included python.
#   [The recipes are defined here for convenience but instantiated later after
#    command line options have been processed.]
def library_recipes():
    result = []

    LT_10_5 = bool(DEPTARGET < '10.5')

    if getVersionTuple() >= (3, 3):
        result.extend([
          dict(
              name="XZ 5.0.3",
              url="http://tukaani.org/xz/xz-5.0.3.tar.gz",
              checksum='fefe52f9ecd521de2a8ce38c21a27574',
              configure_pre=[
                    '--disable-dependency-tracking',
              ]
              ),
        ])

    result.extend([
          dict(
              name="NCurses 5.9",
              url="http://ftp.gnu.org/pub/gnu/ncurses/ncurses-5.9.tar.gz",
              checksum='8cb9c412e5f2d96bc6f459aa8c6282a1',
              configure_pre=[
                  "--enable-widec",
                  "--without-cxx",
                  "--without-cxx-binding",
                  "--without-ada",
                  "--without-curses-h",
                  "--enable-shared",
                  "--with-shared",
                  "--without-debug",
                  "--without-normal",
                  "--without-tests",
                  "--without-manpages",
                  "--datadir=/usr/share",
                  "--sysconfdir=/etc",
                  "--sharedstatedir=/usr/com",
                  "--with-terminfo-dirs=/usr/share/terminfo",
                  "--with-default-terminfo-dir=/usr/share/terminfo",
                  "--libdir=/Library/Frameworks/Python.framework/Versions/%s/lib"%(getVersion(),),
              ],
              patchscripts=[
                  ("ftp://invisible-island.net/ncurses//5.9/ncurses-5.9-20120616-patch.sh.bz2",
                   "f54bf02a349f96a7c4f0d00922f3a0d4"),
                   ],
              useLDFlags=False,
              install='make && make install DESTDIR=%s && cd %s/usr/local/lib && ln -fs ../../../Library/Frameworks/Python.framework/Versions/%s/lib/lib* .'%(
                  shellQuote(os.path.join(WORKDIR, 'libraries')),
                  shellQuote(os.path.join(WORKDIR, 'libraries')),
                  getVersion(),
                  ),
          ),
          dict(
              name="SQLite 3.7.13",
              url="http://www.sqlite.org/sqlite-autoconf-3071300.tar.gz",
              checksum='c97df403e8a3d5b67bb408fcd6aabd8e',
              extra_cflags=('-Os '
                            '-DSQLITE_ENABLE_FTS4 '
                            '-DSQLITE_ENABLE_FTS3_PARENTHESIS '
                            '-DSQLITE_ENABLE_RTREE '
                            '-DSQLITE_TCL=0 '
                 '%s' % ('','-DSQLITE_WITHOUT_ZONEMALLOC ')[LT_10_5]),
              configure_pre=[
                  '--enable-threadsafe',
                  '--enable-shared=no',
                  '--enable-static=yes',
                  '--disable-readline',
                  '--disable-dependency-tracking',
              ]
          ),
        ])

    if DEPTARGET < '10.5':
        result.extend([
          dict(
              name="Bzip2 1.0.6",
              url="http://bzip.org/1.0.6/bzip2-1.0.6.tar.gz",
              checksum='00b516f4704d4a7cb50a1d97e6e8e15b',
              configure=None,
              install='make install CC=%s CXX=%s, PREFIX=%s/usr/local/ CFLAGS="-arch %s -isysroot %s"'%(
                  CC, CXX,
                  shellQuote(os.path.join(WORKDIR, 'libraries')),
                  ' -arch '.join(ARCHLIST),
                  SDKPATH,
              ),
          ),
          dict(
              name="ZLib 1.2.3",
              url="http://www.gzip.org/zlib/zlib-1.2.3.tar.gz",
              checksum='debc62758716a169df9f62e6ab2bc634',
              configure=None,
              install='make install CC=%s CXX=%s, prefix=%s/usr/local/ CFLAGS="-arch %s -isysroot %s"'%(
                  CC, CXX,
                  shellQuote(os.path.join(WORKDIR, 'libraries')),
                  ' -arch '.join(ARCHLIST),
                  SDKPATH,
              ),
          ),
          dict(
              # Note that GNU readline is GPL'd software
              name="GNU Readline 6.1.2",
              url="http://ftp.gnu.org/pub/gnu/readline/readline-6.1.tar.gz" ,
              checksum='fc2f7e714fe792db1ce6ddc4c9fb4ef3',
              patchlevel='0',
              patches=[
                  # The readline maintainers don't do actual micro releases, but
                  # just ship a set of patches.
                  ('http://ftp.gnu.org/pub/gnu/readline/readline-6.1-patches/readline61-001',
                   'c642f2e84d820884b0bf9fd176bc6c3f'),
                  ('http://ftp.gnu.org/pub/gnu/readline/readline-6.1-patches/readline61-002',
                   '1a76781a1ea734e831588285db7ec9b1'),
              ]
          ),
        ])

    if not PYTHON_3:
        result.extend([
          dict(
              name="Sleepycat DB 4.7.25",
              url="http://download.oracle.com/berkeley-db/db-4.7.25.tar.gz",
              checksum='ec2b87e833779681a0c3a814aa71359e',
              buildDir="build_unix",
              configure="../dist/configure",
              configure_pre=[
                  '--includedir=/usr/local/include/db4',
              ]
          ),
        ])

    return result


# Instructions for building packages inside the .mpkg.
def pkg_recipes():
    unselected_for_python3 = ('selected', 'unselected')[PYTHON_3]
    result = [
        dict(
            name="PythonFramework",
            long_name="Python Framework",
            source="/Library/Frameworks/Python.framework",
            readme="""\
                This package installs Python.framework, that is the python
                interpreter and the standard library. This also includes Python
                wrappers for lots of Mac OS X API's.
            """,
            postflight="scripts/postflight.framework",
            selected='selected',
        ),
        dict(
            name="PythonApplications",
            long_name="GUI Applications",
            source="/Applications/Python %(VER)s",
            readme="""\
                This package installs IDLE (an interactive Python IDE),
                Python Launcher and Build Applet (create application bundles
                from python scripts).

                It also installs a number of examples and demos.
                """,
            required=False,
            selected='selected',
        ),
        dict(
            name="PythonUnixTools",
            long_name="UNIX command-line tools",
            source="/usr/local/bin",
            readme="""\
                This package installs the unix tools in /usr/local/bin for
                compatibility with older releases of Python. This package
                is not necessary to use Python.
                """,
            required=False,
            selected='selected',
        ),
        dict(
            name="PythonDocumentation",
            long_name="Python Documentation",
            topdir="/Library/Frameworks/Python.framework/Versions/%(VER)s/Resources/English.lproj/Documentation",
            source="/pydocs",
            readme="""\
                This package installs the python documentation at a location
                that is useable for pydoc and IDLE.
                """,
            postflight="scripts/postflight.documentation",
            required=False,
            selected='selected',
        ),
        dict(
            name="PythonProfileChanges",
            long_name="Shell profile updater",
            readme="""\
                This packages updates your shell profile to make sure that
                the Python tools are found by your shell in preference of
                the system provided Python tools.

                If you don't install this package you'll have to add
                "/Library/Frameworks/Python.framework/Versions/%(VER)s/bin"
                to your PATH by hand.
                """,
            postflight="scripts/postflight.patch-profile",
            topdir="/Library/Frameworks/Python.framework",
            source="/empty-dir",
            required=False,
            selected=unselected_for_python3,
        ),
    ]

    if DEPTARGET < '10.4' and not PYTHON_3:
        result.append(
            dict(
                name="PythonSystemFixes",
                long_name="Fix system Python",
                readme="""\
                    This package updates the system python installation on
                    Mac OS X 10.3 to ensure that you can build new python extensions
                    using that copy of python after installing this version.
                    """,
                postflight="../Tools/fixapplepython23.py",
                topdir="/Library/Frameworks/Python.framework",
                source="/empty-dir",
                required=False,
                selected=unselected_for_python3,
            )
        )
    return result

def fatal(msg):
    """
    A fatal error, bail out.
    """
    sys.stderr.write('FATAL: ')
    sys.stderr.write(msg)
    sys.stderr.write('\n')
    sys.exit(1)

def fileContents(fn):
    """
    Return the contents of the named file
    """
    return open(fn, 'r').read()

def runCommand(commandline):
    """
    Run a command and raise RuntimeError if it fails. Output is suppressed
    unless the command fails.
    """
    fd = os.popen(commandline, 'r')
    data = fd.read()
    xit = fd.close()
    if xit is not None:
        sys.stdout.write(data)
        raise RuntimeError("command failed: %s"%(commandline,))

    if VERBOSE:
        sys.stdout.write(data); sys.stdout.flush()

def captureCommand(commandline):
    fd = os.popen(commandline, 'r')
    data = fd.read()
    xit = fd.close()
    if xit is not None:
        sys.stdout.write(data)
        raise RuntimeError("command failed: %s"%(commandline,))

    return data

def getTclTkVersion(configfile, versionline):
    """
    search Tcl or Tk configuration file for version line
    """
    try:
        f = open(configfile, "r")
    except:
        fatal("Framework configuration file not found: %s" % configfile)

    for l in f:
        if l.startswith(versionline):
            f.close()
            return l

    fatal("Version variable %s not found in framework configuration file: %s"
            % (versionline, configfile))

def checkEnvironment():
    """
    Check that we're running on a supported system.
    """

    if sys.version_info[0:2] < (2, 4):
        fatal("This script must be run with Python 2.4 or later")

    if platform.system() != 'Darwin':
        fatal("This script should be run on a Mac OS X 10.4 (or later) system")

    if int(platform.release().split('.')[0]) < 8:
        fatal("This script should be run on a Mac OS X 10.4 (or later) system")

    if not os.path.exists(SDKPATH):
        fatal("Please install the latest version of Xcode and the %s SDK"%(
            os.path.basename(SDKPATH[:-4])))

    # Because we only support dynamic load of only one major/minor version of
    # Tcl/Tk, ensure:
    # 1. there are no user-installed frameworks of Tcl/Tk with version
    #       higher than the Apple-supplied system version in
    #       SDKROOT/System/Library/Frameworks
    # 2. there is a user-installed framework (usually ActiveTcl) in (or linked
    #       in) SDKROOT/Library/Frameworks with the same version as the system
    #       version. This allows users to choose to install a newer patch level.

    frameworks = {}
    for framework in ['Tcl', 'Tk']:
        fwpth = 'Library/Frameworks/%s.framework/Versions/Current' % framework
        sysfw = os.path.join(SDKPATH, 'System', fwpth)
        libfw = os.path.join(SDKPATH, fwpth)
        usrfw = os.path.join(os.getenv('HOME'), fwpth)
        frameworks[framework] = os.readlink(sysfw)
        if not os.path.exists(libfw):
            fatal("Please install a link to a current %s %s as %s so "
                    "the user can override the system framework."
                    % (framework, frameworks[framework], libfw))
        if os.readlink(libfw) != os.readlink(sysfw):
            fatal("Version of %s must match %s" % (libfw, sysfw) )
        if os.path.exists(usrfw):
            fatal("Please rename %s to avoid possible dynamic load issues."
                    % usrfw)

    if frameworks['Tcl'] != frameworks['Tk']:
        fatal("The Tcl and Tk frameworks are not the same version.")

    # add files to check after build
    EXPECTED_SHARED_LIBS['_tkinter.so'] = [
            "/Library/Frameworks/Tcl.framework/Versions/%s/Tcl"
                % frameworks['Tcl'],
            "/Library/Frameworks/Tk.framework/Versions/%s/Tk"
                % frameworks['Tk'],
            ]

    # Remove inherited environment variables which might influence build
    environ_var_prefixes = ['CPATH', 'C_INCLUDE_', 'DYLD_', 'LANG', 'LC_',
                            'LD_', 'LIBRARY_', 'PATH', 'PYTHON']
    for ev in list(os.environ):
        for prefix in environ_var_prefixes:
            if ev.startswith(prefix) :
                print("INFO: deleting environment variable %s=%s" % (
                                                    ev, os.environ[ev]))
                del os.environ[ev]

    base_path = '/bin:/sbin:/usr/bin:/usr/sbin'
    if 'SDK_TOOLS_BIN' in os.environ:
        base_path = os.environ['SDK_TOOLS_BIN'] + ':' + base_path
    # Xcode 2.5 on OS X 10.4 does not include SetFile in its usr/bin;
    # add its fixed location here if it exists
    OLD_DEVELOPER_TOOLS = '/Developer/Tools'
    if os.path.isdir(OLD_DEVELOPER_TOOLS):
        base_path = base_path + ':' + OLD_DEVELOPER_TOOLS
    os.environ['PATH'] = base_path
    print("Setting default PATH: %s"%(os.environ['PATH']))


def parseOptions(args=None):
    """
    Parse arguments and update global settings.
    """
    global WORKDIR, DEPSRC, SDKPATH, SRCDIR, DEPTARGET
    global UNIVERSALOPTS, UNIVERSALARCHS, ARCHLIST, CC, CXX

    if args is None:
        args = sys.argv[1:]

    try:
        options, args = getopt.getopt(args, '?hb',
                [ 'build-dir=', 'third-party=', 'sdk-path=' , 'src-dir=',
                  'dep-target=', 'universal-archs=', 'help' ])
    except getopt.GetoptError:
        print(sys.exc_info()[1])
        sys.exit(1)

    if args:
        print("Additional arguments")
        sys.exit(1)

    deptarget = None
    for k, v in options:
        if k in ('-h', '-?', '--help'):
            print(USAGE)
            sys.exit(0)

        elif k in ('-d', '--build-dir'):
            WORKDIR=v

        elif k in ('--third-party',):
            DEPSRC=v

        elif k in ('--sdk-path',):
            SDKPATH=v

        elif k in ('--src-dir',):
            SRCDIR=v

        elif k in ('--dep-target', ):
            DEPTARGET=v
            deptarget=v

        elif k in ('--universal-archs', ):
            if v in UNIVERSALOPTS:
                UNIVERSALARCHS = v
                ARCHLIST = universal_opts_map[UNIVERSALARCHS]
                if deptarget is None:
                    # Select alternate default deployment
                    # target
                    DEPTARGET = default_target_map.get(v, '10.3')
            else:
                raise NotImplementedError(v)

        else:
            raise NotImplementedError(k)

    SRCDIR=os.path.abspath(SRCDIR)
    WORKDIR=os.path.abspath(WORKDIR)
    SDKPATH=os.path.abspath(SDKPATH)
    DEPSRC=os.path.abspath(DEPSRC)

    CC, CXX=target_cc_map[DEPTARGET]

    print("Settings:")
    print(" * Source directory:", SRCDIR)
    print(" * Build directory: ", WORKDIR)
    print(" * SDK location:    ", SDKPATH)
    print(" * Third-party source:", DEPSRC)
    print(" * Deployment target:", DEPTARGET)
    print(" * Universal architectures:", ARCHLIST)
    print(" * C compiler:", CC)
    print(" * C++ compiler:", CXX)
    print("")




def extractArchive(builddir, archiveName):
    """
    Extract a source archive into 'builddir'. Returns the path of the
    extracted archive.

    XXX: This function assumes that archives contain a toplevel directory
    that is has the same name as the basename of the archive. This is
    save enough for anything we use.
    """
    curdir = os.getcwd()
    try:
        os.chdir(builddir)
        if archiveName.endswith('.tar.gz'):
            retval = os.path.basename(archiveName[:-7])
            if os.path.exists(retval):
                shutil.rmtree(retval)
            fp = os.popen("tar zxf %s 2>&1"%(shellQuote(archiveName),), 'r')

        elif archiveName.endswith('.tar.bz2'):
            retval = os.path.basename(archiveName[:-8])
            if os.path.exists(retval):
                shutil.rmtree(retval)
            fp = os.popen("tar jxf %s 2>&1"%(shellQuote(archiveName),), 'r')

        elif archiveName.endswith('.tar'):
            retval = os.path.basename(archiveName[:-4])
            if os.path.exists(retval):
                shutil.rmtree(retval)
            fp = os.popen("tar xf %s 2>&1"%(shellQuote(archiveName),), 'r')

        elif archiveName.endswith('.zip'):
            retval = os.path.basename(archiveName[:-4])
            if os.path.exists(retval):
                shutil.rmtree(retval)
            fp = os.popen("unzip %s 2>&1"%(shellQuote(archiveName),), 'r')

        data = fp.read()
        xit = fp.close()
        if xit is not None:
            sys.stdout.write(data)
            raise RuntimeError("Cannot extract %s"%(archiveName,))

        return os.path.join(builddir, retval)

    finally:
        os.chdir(curdir)

def downloadURL(url, fname):
    """
    Download the contents of the url into the file.
    """
    fpIn = urllib_request.urlopen(url)
    fpOut = open(fname, 'wb')
    block = fpIn.read(10240)
    try:
        while block:
            fpOut.write(block)
            block = fpIn.read(10240)
        fpIn.close()
        fpOut.close()
    except:
        try:
            os.unlink(fname)
        except:
            pass

def verifyThirdPartyFile(url, checksum, fname):
    """
    Download file from url to filename fname if it does not already exist.
    Abort if file contents does not match supplied md5 checksum.
    """
    name = os.path.basename(fname)
    if os.path.exists(fname):
        print("Using local copy of %s"%(name,))
    else:
        print("Did not find local copy of %s"%(name,))
        print("Downloading %s"%(name,))
        downloadURL(url, fname)
        print("Archive for %s stored as %s"%(name, fname))
    if os.system(
            'MD5=$(openssl md5 %s) ; test "${MD5##*= }" = "%s"'
                % (shellQuote(fname), checksum) ):
        fatal('MD5 checksum mismatch for file %s' % fname)

def buildRecipe(recipe, basedir, archList):
    """
    Build software using a recipe. This function does the
    'configure;make;make install' dance for C software, with a possibility
    to customize this process, basically a poor-mans DarwinPorts.
    """
    curdir = os.getcwd()

    name = recipe['name']
    url = recipe['url']
    configure = recipe.get('configure', './configure')
    install = recipe.get('install', 'make && make install DESTDIR=%s'%(
        shellQuote(basedir)))

    archiveName = os.path.split(url)[-1]
    sourceArchive = os.path.join(DEPSRC, archiveName)

    if not os.path.exists(DEPSRC):
        os.mkdir(DEPSRC)

    verifyThirdPartyFile(url, recipe['checksum'], sourceArchive)
    print("Extracting archive for %s"%(name,))
    buildDir=os.path.join(WORKDIR, '_bld')
    if not os.path.exists(buildDir):
        os.mkdir(buildDir)

    workDir = extractArchive(buildDir, sourceArchive)
    os.chdir(workDir)
    if 'buildDir' in recipe:
        os.chdir(recipe['buildDir'])

    for patch in recipe.get('patches', ()):
        if isinstance(patch, tuple):
            url, checksum = patch
            fn = os.path.join(DEPSRC, os.path.basename(url))
            verifyThirdPartyFile(url, checksum, fn)
        else:
            # patch is a file in the source directory
            fn = os.path.join(curdir, patch)
        runCommand('patch -p%s < %s'%(recipe.get('patchlevel', 1),
            shellQuote(fn),))

    for patchscript in recipe.get('patchscripts', ()):
        if isinstance(patchscript, tuple):
            url, checksum = patchscript
            fn = os.path.join(DEPSRC, os.path.basename(url))
            verifyThirdPartyFile(url, checksum, fn)
        else:
            # patch is a file in the source directory
            fn = os.path.join(curdir, patchscript)
        if fn.endswith('.bz2'):
            runCommand('bunzip2 -fk %s' % shellQuote(fn))
            fn = fn[:-4]
        runCommand('sh %s' % shellQuote(fn))
        os.unlink(fn)

    if configure is not None:
        configure_args = [
            "--prefix=/usr/local",
            "--enable-static",
            "--disable-shared",
            #"CPP=gcc -arch %s -E"%(' -arch '.join(archList,),),
        ]

        if 'configure_pre' in recipe:
            args = list(recipe['configure_pre'])
            if '--disable-static' in args:
                configure_args.remove('--enable-static')
            if '--enable-shared' in args:
                configure_args.remove('--disable-shared')
            configure_args.extend(args)

        if recipe.get('useLDFlags', 1):
            configure_args.extend([
                "CFLAGS=%s-mmacosx-version-min=%s -arch %s -isysroot %s "
                            "-I%s/usr/local/include"%(
                        recipe.get('extra_cflags', ''),
                        DEPTARGET,
                        ' -arch '.join(archList),
                        shellQuote(SDKPATH)[1:-1],
                        shellQuote(basedir)[1:-1],),
                "LDFLAGS=-mmacosx-version-min=%s -syslibroot,%s -L%s/usr/local/lib -arch %s"%(
                    DEPTARGET,
                    shellQuote(SDKPATH)[1:-1],
                    shellQuote(basedir)[1:-1],
                    ' -arch '.join(archList)),
            ])
        else:
            configure_args.extend([
                "CFLAGS=%s-mmacosx-version-min=%s -arch %s -isysroot %s "
                            "-I%s/usr/local/include"%(
                        recipe.get('extra_cflags', ''),
                        DEPTARGET,
                        ' -arch '.join(archList),
                        shellQuote(SDKPATH)[1:-1],
                        shellQuote(basedir)[1:-1],),
            ])

        if 'configure_post' in recipe:
            configure_args = configure_args + list(recipe['configure_post'])

        configure_args.insert(0, configure)
        configure_args = [ shellQuote(a) for a in configure_args ]

        print("Running configure for %s"%(name,))
        runCommand(' '.join(configure_args) + ' 2>&1')

    print("Running install for %s"%(name,))
    runCommand('{ ' + install + ' ;} 2>&1')

    print("Done %s"%(name,))
    print("")

    os.chdir(curdir)

def buildLibraries():
    """
    Build our dependencies into $WORKDIR/libraries/usr/local
    """
    print("")
    print("Building required libraries")
    print("")
    universal = os.path.join(WORKDIR, 'libraries')
    os.mkdir(universal)
    os.makedirs(os.path.join(universal, 'usr', 'local', 'lib'))
    os.makedirs(os.path.join(universal, 'usr', 'local', 'include'))

    for recipe in library_recipes():
        buildRecipe(recipe, universal, ARCHLIST)



def buildPythonDocs():
    # This stores the documentation as Resources/English.lproj/Documentation
    # inside the framwork. pydoc and IDLE will pick it up there.
    print("Install python documentation")
    rootDir = os.path.join(WORKDIR, '_root')
    buildDir = os.path.join('../../Doc')
    docdir = os.path.join(rootDir, 'pydocs')
    curDir = os.getcwd()
    os.chdir(buildDir)
    runCommand('make update')
    runCommand("make html PYTHON='%s'" % os.path.abspath(sys.executable))
    os.chdir(curDir)
    if not os.path.exists(docdir):
        os.mkdir(docdir)
    os.rename(os.path.join(buildDir, 'build', 'html'), docdir)


def buildPython():
    print("Building a universal python for %s architectures" % UNIVERSALARCHS)

    buildDir = os.path.join(WORKDIR, '_bld', 'python')
    rootDir = os.path.join(WORKDIR, '_root')

    if os.path.exists(buildDir):
        shutil.rmtree(buildDir)
    if os.path.exists(rootDir):
        shutil.rmtree(rootDir)
    os.makedirs(buildDir)
    os.makedirs(rootDir)
    os.makedirs(os.path.join(rootDir, 'empty-dir'))
    curdir = os.getcwd()
    os.chdir(buildDir)

    # Not sure if this is still needed, the original build script
    # claims that parts of the install assume python.exe exists.
    os.symlink('python', os.path.join(buildDir, 'python.exe'))

    # Extract the version from the configure file, needed to calculate
    # several paths.
    version = getVersion()

    # Since the extra libs are not in their installed framework location
    # during the build, augment the library path so that the interpreter
    # will find them during its extension import sanity checks.
    os.environ['DYLD_LIBRARY_PATH'] = os.path.join(WORKDIR,
                                        'libraries', 'usr', 'local', 'lib')
    print("Running configure...")
    runCommand("%s -C --enable-framework --enable-universalsdk=%s "
               "--with-universal-archs=%s "
               "%s "
               "LDFLAGS='-g -L%s/libraries/usr/local/lib' "
               "OPT='-g -O3 -I%s/libraries/usr/local/include' 2>&1"%(
        shellQuote(os.path.join(SRCDIR, 'configure')), shellQuote(SDKPATH),
        UNIVERSALARCHS,
        (' ', '--with-computed-gotos ')[PYTHON_3],
        shellQuote(WORKDIR)[1:-1],
        shellQuote(WORKDIR)[1:-1]))

    print("Running make")
    runCommand("make")

    print("Running make install")
    runCommand("make install DESTDIR=%s"%(
        shellQuote(rootDir)))

    print("Running make frameworkinstallextras")
    runCommand("make frameworkinstallextras DESTDIR=%s"%(
        shellQuote(rootDir)))

    del os.environ['DYLD_LIBRARY_PATH']
    print("Copying required shared libraries")
    if os.path.exists(os.path.join(WORKDIR, 'libraries', 'Library')):
        runCommand("mv %s/* %s"%(
            shellQuote(os.path.join(
                WORKDIR, 'libraries', 'Library', 'Frameworks',
                'Python.framework', 'Versions', getVersion(),
                'lib')),
            shellQuote(os.path.join(WORKDIR, '_root', 'Library', 'Frameworks',
                'Python.framework', 'Versions', getVersion(),
                'lib'))))

    print("Fix file modes")
    frmDir = os.path.join(rootDir, 'Library', 'Frameworks', 'Python.framework')
    gid = grp.getgrnam('admin').gr_gid

    shared_lib_error = False
    for dirpath, dirnames, filenames in os.walk(frmDir):
        for dn in dirnames:
            os.chmod(os.path.join(dirpath, dn), STAT_0o775)
            os.chown(os.path.join(dirpath, dn), -1, gid)

        for fn in filenames:
            if os.path.islink(fn):
                continue

            # "chmod g+w $fn"
            p = os.path.join(dirpath, fn)
            st = os.stat(p)
            os.chmod(p, stat.S_IMODE(st.st_mode) | stat.S_IWGRP)
            os.chown(p, -1, gid)

            if fn in EXPECTED_SHARED_LIBS:
                # check to see that this file was linked with the
                # expected library path and version
                data = captureCommand("otool -L %s" % shellQuote(p))
                for sl in EXPECTED_SHARED_LIBS[fn]:
                    if ("\t%s " % sl) not in data:
                        print("Expected shared lib %s was not linked with %s"
                                % (sl, p))
                        shared_lib_error = True

    if shared_lib_error:
        fatal("Unexpected shared library errors.")

    if PYTHON_3:
        LDVERSION=None
        VERSION=None
        ABIFLAGS=None

        fp = open(os.path.join(buildDir, 'Makefile'), 'r')
        for ln in fp:
            if ln.startswith('VERSION='):
                VERSION=ln.split()[1]
            if ln.startswith('ABIFLAGS='):
                ABIFLAGS=ln.split()[1]
            if ln.startswith('LDVERSION='):
                LDVERSION=ln.split()[1]
        fp.close()

        LDVERSION = LDVERSION.replace('$(VERSION)', VERSION)
        LDVERSION = LDVERSION.replace('$(ABIFLAGS)', ABIFLAGS)
        config_suffix = '-' + LDVERSION
    else:
        config_suffix = ''      # Python 2.x

    # We added some directories to the search path during the configure
    # phase. Remove those because those directories won't be there on
    # the end-users system. Also remove the directories from _sysconfigdata.py
    # (added in 3.3) if it exists.

    path_to_lib = os.path.join(rootDir, 'Library', 'Frameworks',
                                'Python.framework', 'Versions',
                                version, 'lib', 'python%s'%(version,))
    paths = [os.path.join(path_to_lib, 'config' + config_suffix, 'Makefile'),
             os.path.join(path_to_lib, '_sysconfigdata.py')]
    for path in paths:
        if not os.path.exists(path):
            continue
        fp = open(path, 'r')
        data = fp.read()
        fp.close()

        data = data.replace(' -L%s/libraries/usr/local/lib'%(WORKDIR,), '')
        data = data.replace(' -I%s/libraries/usr/local/include'%(WORKDIR,), '')
        fp = open(path, 'w')
        fp.write(data)
        fp.close()

    # Add symlinks in /usr/local/bin, using relative links
    usr_local_bin = os.path.join(rootDir, 'usr', 'local', 'bin')
    to_framework = os.path.join('..', '..', '..', 'Library', 'Frameworks',
            'Python.framework', 'Versions', version, 'bin')
    if os.path.exists(usr_local_bin):
        shutil.rmtree(usr_local_bin)
    os.makedirs(usr_local_bin)
    for fn in os.listdir(
                os.path.join(frmDir, 'Versions', version, 'bin')):
        os.symlink(os.path.join(to_framework, fn),
                   os.path.join(usr_local_bin, fn))

    os.chdir(curdir)

    if PYTHON_3:
        # Remove the 'Current' link, that way we don't accidentally mess
        # with an already installed version of python 2
        os.unlink(os.path.join(rootDir, 'Library', 'Frameworks',
                            'Python.framework', 'Versions', 'Current'))

def patchFile(inPath, outPath):
    data = fileContents(inPath)
    data = data.replace('$FULL_VERSION', getFullVersion())
    data = data.replace('$VERSION', getVersion())
    data = data.replace('$MACOSX_DEPLOYMENT_TARGET', ''.join((DEPTARGET, ' or later')))
    data = data.replace('$ARCHITECTURES', ", ".join(universal_opts_map[UNIVERSALARCHS]))
    data = data.replace('$INSTALL_SIZE', installSize())

    # This one is not handy as a template variable
    data = data.replace('$PYTHONFRAMEWORKINSTALLDIR', '/Library/Frameworks/Python.framework')
    fp = open(outPath, 'w')
    fp.write(data)
    fp.close()

def patchScript(inPath, outPath):
    data = fileContents(inPath)
    data = data.replace('@PYVER@', getVersion())
    fp = open(outPath, 'w')
    fp.write(data)
    fp.close()
    os.chmod(outPath, STAT_0o755)



def packageFromRecipe(targetDir, recipe):
    curdir = os.getcwd()
    try:
        # The major version (such as 2.5) is included in the package name
        # because having two version of python installed at the same time is
        # common.
        pkgname = '%s-%s'%(recipe['name'], getVersion())
        srcdir  = recipe.get('source')
        pkgroot = recipe.get('topdir', srcdir)
        postflight = recipe.get('postflight')
        readme = textwrap.dedent(recipe['readme'])
        isRequired = recipe.get('required', True)

        print("- building package %s"%(pkgname,))

        # Substitute some variables
        textvars = dict(
            VER=getVersion(),
            FULLVER=getFullVersion(),
        )
        readme = readme % textvars

        if pkgroot is not None:
            pkgroot = pkgroot % textvars
        else:
            pkgroot = '/'

        if srcdir is not None:
            srcdir = os.path.join(WORKDIR, '_root', srcdir[1:])
            srcdir = srcdir % textvars

        if postflight is not None:
            postflight = os.path.abspath(postflight)

        packageContents = os.path.join(targetDir, pkgname + '.pkg', 'Contents')
        os.makedirs(packageContents)

        if srcdir is not None:
            os.chdir(srcdir)
            runCommand("pax -wf %s . 2>&1"%(shellQuote(os.path.join(packageContents, 'Archive.pax')),))
            runCommand("gzip -9 %s 2>&1"%(shellQuote(os.path.join(packageContents, 'Archive.pax')),))
            runCommand("mkbom . %s 2>&1"%(shellQuote(os.path.join(packageContents, 'Archive.bom')),))

        fn = os.path.join(packageContents, 'PkgInfo')
        fp = open(fn, 'w')
        fp.write('pmkrpkg1')
        fp.close()

        rsrcDir = os.path.join(packageContents, "Resources")
        os.mkdir(rsrcDir)
        fp = open(os.path.join(rsrcDir, 'ReadMe.txt'), 'w')
        fp.write(readme)
        fp.close()

        if postflight is not None:
            patchScript(postflight, os.path.join(rsrcDir, 'postflight'))

        vers = getFullVersion()
        major, minor = getVersionMajorMinor()
        pl = Plist(
                CFBundleGetInfoString="Python.%s %s"%(pkgname, vers,),
                CFBundleIdentifier='org.python.Python.%s'%(pkgname,),
                CFBundleName='Python.%s'%(pkgname,),
                CFBundleShortVersionString=vers,
                IFMajorVersion=major,
                IFMinorVersion=minor,
                IFPkgFormatVersion=0.10000000149011612,
                IFPkgFlagAllowBackRev=False,
                IFPkgFlagAuthorizationAction="RootAuthorization",
                IFPkgFlagDefaultLocation=pkgroot,
                IFPkgFlagFollowLinks=True,
                IFPkgFlagInstallFat=True,
                IFPkgFlagIsRequired=isRequired,
                IFPkgFlagOverwritePermissions=False,
                IFPkgFlagRelocatable=False,
                IFPkgFlagRestartAction="NoRestart",
                IFPkgFlagRootVolumeOnly=True,
                IFPkgFlagUpdateInstalledLangauges=False,
            )
        writePlist(pl, os.path.join(packageContents, 'Info.plist'))

        pl = Plist(
                    IFPkgDescriptionDescription=readme,
                    IFPkgDescriptionTitle=recipe.get('long_name', "Python.%s"%(pkgname,)),
                    IFPkgDescriptionVersion=vers,
                )
        writePlist(pl, os.path.join(packageContents, 'Resources', 'Description.plist'))

    finally:
        os.chdir(curdir)


def makeMpkgPlist(path):

    vers = getFullVersion()
    major, minor = getVersionMajorMinor()

    pl = Plist(
            CFBundleGetInfoString="Python %s"%(vers,),
            CFBundleIdentifier='org.python.Python',
            CFBundleName='Python',
            CFBundleShortVersionString=vers,
            IFMajorVersion=major,
            IFMinorVersion=minor,
            IFPkgFlagComponentDirectory="Contents/Packages",
            IFPkgFlagPackageList=[
                dict(
                    IFPkgFlagPackageLocation='%s-%s.pkg'%(item['name'], getVersion()),
                    IFPkgFlagPackageSelection=item.get('selected', 'selected'),
                )
                for item in pkg_recipes()
            ],
            IFPkgFormatVersion=0.10000000149011612,
            IFPkgFlagBackgroundScaling="proportional",
            IFPkgFlagBackgroundAlignment="left",
            IFPkgFlagAuthorizationAction="RootAuthorization",
        )

    writePlist(pl, path)


def buildInstaller():

    # Zap all compiled files
    for dirpath, _, filenames in os.walk(os.path.join(WORKDIR, '_root')):
        for fn in filenames:
            if fn.endswith('.pyc') or fn.endswith('.pyo'):
                os.unlink(os.path.join(dirpath, fn))

    outdir = os.path.join(WORKDIR, 'installer')
    if os.path.exists(outdir):
        shutil.rmtree(outdir)
    os.mkdir(outdir)

    pkgroot = os.path.join(outdir, 'Python.mpkg', 'Contents')
    pkgcontents = os.path.join(pkgroot, 'Packages')
    os.makedirs(pkgcontents)
    for recipe in pkg_recipes():
        packageFromRecipe(pkgcontents, recipe)

    rsrcDir = os.path.join(pkgroot, 'Resources')

    fn = os.path.join(pkgroot, 'PkgInfo')
    fp = open(fn, 'w')
    fp.write('pmkrpkg1')
    fp.close()

    os.mkdir(rsrcDir)

    makeMpkgPlist(os.path.join(pkgroot, 'Info.plist'))
    pl = Plist(
                IFPkgDescriptionTitle="Python",
                IFPkgDescriptionVersion=getVersion(),
            )

    writePlist(pl, os.path.join(pkgroot, 'Resources', 'Description.plist'))
    for fn in os.listdir('resources'):
        if fn == '.svn': continue
        if fn.endswith('.jpg'):
            shutil.copy(os.path.join('resources', fn), os.path.join(rsrcDir, fn))
        else:
            patchFile(os.path.join('resources', fn), os.path.join(rsrcDir, fn))

    shutil.copy("../../LICENSE", os.path.join(rsrcDir, 'License.txt'))


def installSize(clear=False, _saved=[]):
    if clear:
        del _saved[:]
    if not _saved:
        data = captureCommand("du -ks %s"%(
                    shellQuote(os.path.join(WORKDIR, '_root'))))
        _saved.append("%d"%((0.5 + (int(data.split()[0]) / 1024.0)),))
    return _saved[0]


def buildDMG():
    """
    Create DMG containing the rootDir.
    """
    outdir = os.path.join(WORKDIR, 'diskimage')
    if os.path.exists(outdir):
        shutil.rmtree(outdir)

    imagepath = os.path.join(outdir,
                    'python-%s-macosx%s'%(getFullVersion(),DEPTARGET))
    if INCLUDE_TIMESTAMP:
        imagepath = imagepath + '-%04d-%02d-%02d'%(time.localtime()[:3])
    imagepath = imagepath + '.dmg'

    os.mkdir(outdir)
    volname='Python %s'%(getFullVersion())
    runCommand("hdiutil create -format UDRW -volname %s -srcfolder %s %s"%(
            shellQuote(volname),
            shellQuote(os.path.join(WORKDIR, 'installer')),
            shellQuote(imagepath + ".tmp.dmg" )))


    if not os.path.exists(os.path.join(WORKDIR, "mnt")):
        os.mkdir(os.path.join(WORKDIR, "mnt"))
    runCommand("hdiutil attach %s -mountroot %s"%(
        shellQuote(imagepath + ".tmp.dmg"), shellQuote(os.path.join(WORKDIR, "mnt"))))

    # Custom icon for the DMG, shown when the DMG is mounted.
    shutil.copy("../Icons/Disk Image.icns",
            os.path.join(WORKDIR, "mnt", volname, ".VolumeIcon.icns"))
    runCommand("SetFile -a C %s/"%(
            shellQuote(os.path.join(WORKDIR, "mnt", volname)),))

    runCommand("hdiutil detach %s"%(shellQuote(os.path.join(WORKDIR, "mnt", volname))))

    setIcon(imagepath + ".tmp.dmg", "../Icons/Disk Image.icns")
    runCommand("hdiutil convert %s -format UDZO -o %s"%(
            shellQuote(imagepath + ".tmp.dmg"), shellQuote(imagepath)))
    setIcon(imagepath, "../Icons/Disk Image.icns")

    os.unlink(imagepath + ".tmp.dmg")

    return imagepath


def setIcon(filePath, icnsPath):
    """
    Set the custom icon for the specified file or directory.
    """

    dirPath = os.path.normpath(os.path.dirname(__file__))
    toolPath = os.path.join(dirPath, "seticon.app/Contents/MacOS/seticon")
    if not os.path.exists(toolPath) or os.stat(toolPath).st_mtime < os.stat(dirPath + '/seticon.m').st_mtime:
        # NOTE: The tool is created inside an .app bundle, otherwise it won't work due
        # to connections to the window server.
        appPath = os.path.join(dirPath, "seticon.app/Contents/MacOS")
        if not os.path.exists(appPath):
            os.makedirs(appPath)
        runCommand("cc -o %s %s/seticon.m -framework Cocoa"%(
            shellQuote(toolPath), shellQuote(dirPath)))

    runCommand("%s %s %s"%(shellQuote(os.path.abspath(toolPath)), shellQuote(icnsPath),
        shellQuote(filePath)))

def main():
    # First parse options and check if we can perform our work
    parseOptions()
    checkEnvironment()

    os.environ['MACOSX_DEPLOYMENT_TARGET'] = DEPTARGET
    os.environ['CC'] = CC
    os.environ['CXX'] = CXX

    if os.path.exists(WORKDIR):
        shutil.rmtree(WORKDIR)
    os.mkdir(WORKDIR)

    os.environ['LC_ALL'] = 'C'

    # Then build third-party libraries such as sleepycat DB4.
    buildLibraries()

    # Now build python itself
    buildPython()

    # And then build the documentation
    # Remove the Deployment Target from the shell
    # environment, it's no longer needed and
    # an unexpected build target can cause problems
    # when Sphinx and its dependencies need to
    # be (re-)installed.
    del os.environ['MACOSX_DEPLOYMENT_TARGET']
    buildPythonDocs()


    # Prepare the applications folder
    fn = os.path.join(WORKDIR, "_root", "Applications",
                "Python %s"%(getVersion(),), "Update Shell Profile.command")
    patchScript("scripts/postflight.patch-profile",  fn)

    folder = os.path.join(WORKDIR, "_root", "Applications", "Python %s"%(
        getVersion(),))
    os.chmod(folder, STAT_0o755)
    setIcon(folder, "../Icons/Python Folder.icns")

    # Create the installer
    buildInstaller()

    # And copy the readme into the directory containing the installer
    patchFile('resources/ReadMe.txt', os.path.join(WORKDIR, 'installer', 'ReadMe.txt'))

    # Ditto for the license file.
    shutil.copy('../../LICENSE', os.path.join(WORKDIR, 'installer', 'License.txt'))

    fp = open(os.path.join(WORKDIR, 'installer', 'Build.txt'), 'w')
    fp.write("# BUILD INFO\n")
    fp.write("# Date: %s\n" % time.ctime())
    fp.write("# By: %s\n" % pwd.getpwuid(os.getuid()).pw_gecos)
    fp.close()

    # And copy it to a DMG
    buildDMG()

if __name__ == "__main__":
    main()