summaryrefslogtreecommitdiffstats
path: root/configure.in
blob: 772e2751e3381d756f02577586996e45b72267fd (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
dnl Process this file with autoconf to produce configure.
dnl
dnl Copyright (C) 1997 National Center for Supercomputing Applications.
dnl                    All rights reserved.

dnl ----------------------------------------------------------------------
dnl Initialize configure.
dnl
AC_REVISION($Id$)
AC_INIT(src/H5.c)
AC_CONFIG_HEADER(src/H5config.h)
AC_OUTPUT_COMMANDS([
  echo "creating src/H5pubconf.h"
  sed 's/#define /#define H5_/' <src/H5config.h |\
    sed 's/#undef /#undef H5_/' >pubconf
  if test ! -f src/H5pubconf.h; then
    /bin/mv -f pubconf src/H5pubconf.h
  elif (diff pubconf src/H5pubconf.h >/dev/null); then
    /bin/rm -f pubconf
    echo "src/H5pubconf.h is unchanged"
  else
    /bin/mv -f pubconf src/H5pubconf.h
  fi
])
AC_CONFIG_AUX_DIR(bin)
AC_CANONICAL_HOST
AC_SUBST(CPPFLAGS)

dnl ----------------------------------------------------------------------
dnl Dump all shell variables values.
dnl
AC_MSG_CHECKING(shell variables initial values)
set >&5
AC_MSG_RESULT(done)

dnl ----------------------------------------------------------------------
dnl Check that the cache file was build on the same host as what we're
dnl running on now.
dnl
AC_CACHE_CHECK(for cached host,hdf5_cv_host,hdf5_cv_host="none");
if test $hdf5_cv_host = "none"; then
   hdf5_cv_host=$host
elif test $hdf5_cv_host != $host; then
   echo "The config.cache file was generated on $hdf5_cv_host but"
   echo "this is $host.  Please remove that file and try again."
   AC_MSG_ERROR(config.cache file is invalid)
fi

dnl ----------------------------------------------------------------------
dnl Source any special files that we need.  These files normally aren't
dnl present but can be used by the maintainers to fine tune things like
dnl turning on debug or profiling flags for the compiler.  The search order
dnl is:
dnl
dnl	CPU-VENDOR-OS
dnl	VENDOR-OS
dnl	CPU-OS
dnl	CPU-VENDOR
dnl	OS
dnl	VENDOR
dnl	CPU
dnl
dnl If the `OS' ends with a version number then remove it. For instance,
dnl `freebsd3.1' would become `freebsd'
case $host_os in
    aix4.*)
	host_os_novers=aix4.x
	;;
    freebsd*)
	host_os_novers=freebsd
	;;
    irix5.*)
	host_os_novers=irix5.x
	;;
    irix6.*)
	host_os_novers=irix6.x
	;;
    osf4.*)
	host_os_novers=osf4.x
	;;
    solaris2.*)
	host_os_novers=solaris2.x
	;;
    *)
	host_os_novers=$host_os
	;;
esac

host_config="none"
for f in $host_cpu-$host_vendor-$host_os \
	 $host_cpu-$host_vendor-$host_os_novers \
	 $host_vendor-$host_os \
         $host_vendor-$host_os_novers \
	 $host_cpu-$host_os \
         $host_cpu-$host_os_novers \
         $host_cpu-$host_vendor \
	 $host_os \
	 $host_os_novers \
	 $host_vendor \
	 $host_cpu ; do
   AC_MSG_CHECKING(for config $f)
   if test -f $srcdir/config/$f; then
      host_config=$srcdir/config/$f
      AC_MSG_RESULT(found)
      break
   fi
   AC_MSG_RESULT(no)
done
if test $host_config != "none"; then
   CC_BASENAME="`echo $CC |cut -f1 -d' ' |xargs basename 2>/dev/null`"
   . $host_config
fi

dnl ----------------------------------------------------------------------
dnl Check for programs.
dnl
AC_PROG_CC
CC_BASENAME="`echo $CC |cut -f1 -d' ' |xargs basename 2>/dev/null`"
AC_PROG_MAKE_SET
AC_PROG_INSTALL
AM_PROG_LIBTOOL

if test "X$AR" = "X"; then
   AC_CHECK_PROGS(AR,ar xar,:,$PATH)
fi
AC_SUBST(AR)

AC_MSG_CHECKING(make)
AC_SUBST_FILE(DEPEND)
if test "`${MAKE-make} --version -f /dev/null 2>/dev/null |\
  sed -n 1p|cut -c1-8`" = "GNU Make"; then
    AC_MSG_RESULT(GNU make)
    GMAKE=yes
    if test "X$GCC" = "Xyes"; then
	DEPEND=config/depend1
    else
	DEPEND=config/depend2
    fi
else
    AC_MSG_RESULT(generic)
fi

dnl How do we include another file into a Makefile?
if test "X" = "X$DEPEND"; then
    AC_MSG_CHECKING(how to include a makefile)

    dnl The include file contains the target for `foo'
    cat >makeinc <<EOF
foo:
	@:
EOF

    while true; do #for break

	dnl pmake. We have to be careful because some pmake think that the
	dnl contents of the MAKE environment variable is a target.
	echo '.include <makeinc>' >maketest
	if (MAKE= ${MAKE-make} -f maketest foo) >/dev/null 2>&1; then
	    AC_MSG_RESULT([.include <FILE>])
	    DEPEND=config/depend3
	    break
	fi

	dnl Most make's use `include FILE'
	echo 'include makeinc' >maketest
	if (${MAKE-make} -f maketest foo) >/dev/null 2>&1; then
	    AC_MSG_RESULT(include FILE)
	    DEPEND=config/depend4
	    break;
	fi

	dnl default
	AC_MSG_RESULT(you have a deficient make command)
	DEPEND=config/dependN
	break
    done
    rm makeinc maketest
fi

dnl Sometimes makes think the `.PATH:' appearing before the first rule
dnl with an action should override the `all' default target. So we have
dnl to decide what the proper syntax is.
dnl
AC_MSG_CHECKING(how make searches directories)
while true; do #for break
    # The most common method is `VPATH=DIR1 DIR2 ...'
    cat >maketest <<EOF
VPATH=$srcdir/config $srcdir/src $srcdir/bin
.c.o:
	cp $< H5.o

foo: H5.o
	/bin/rm -f H5.o
	@echo works
EOF
    if (${MAKE-make} -f maketest foo) >/dev/null 2>&1; then
	SEARCH_RULE='VPATH='
	SEARCH_SEP=' '
	AC_MSG_RESULT([VPATH=DIR1 DIR2 ...])
	break
    fi

    # The second most common method is like above except with the
    # directories separated by colons.
    cat >maketest <<EOF
VPATH=$srcdir/config:$srcdir/src:$srcdir/bin
.c.o:
	cp $< H5.o

foo: H5.o
	/bin/rm -f H5.o
	@echo works
EOF
    if (${MAKE-make} -f maketest foo) >/dev/null 2>&1; then
	SEARCH_RULE='VPATH='
	SEARCH_SEP=':'
	AC_MSG_RESULT([VPATH=DIR1:DIR2:...])
	break
    fi

    # pmake uses the construct `.PATH: DIR1 DIR2
    cat >maketest <<EOF
.PATH: $srcdir/config $srcdir/src $srcdir/bin
.c.o:
	cp $< H5.o

foo: H5.o
	/bin/rm -f H5.o
	@echo works
EOF
    if (MAKE= ${MAKE-make} -f maketest foo) >/dev/null 2>&1; then
	SEARCH_RULE='.PATH: '
    	SEARCH_SEP=' '
	AC_MSG_RESULT([.PATH: DIR1 DIR2 ...])
    	break
    fi

    # No way for make to search directories
    SEARCH_RULE='## SEARCH DISABLED: '
    SEARCH_SEP=' '
    AC_MSG_RESULT([it doesn't])
    if test ! -f configure; then
	AC_MSG_ERROR(${MAKE-make} requires the build and source directories to be the same)
    fi
    break
done
rm maketest

dnl ----------------------------------------------------------------------
dnl Turn on warning flags for gcc.
dnl
if test Xyes = "X$GCC"; then
   CFLAGS="$CFLAGS -Wall -W -Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -Winline"
fi

dnl ----------------------------------------------------------------------
dnl Production flags?  Save the value in $CONFIG_MODE so we have it for
dnl the record.
dnl
AC_MSG_CHECKING(for production mode)
AC_ARG_ENABLE(production,
  [  --enable-production     Determines how to run the compiler.])

case "X-$enable_production" in
   X-yes)
      AC_MSG_RESULT("production")
      CONFIG_MODE=production
      CFLAGS="$CFLAGS $PROD_CFLAGS"
      CPPFLAGS="$CPPFLAGS $PROD_CPPFLAGS"
      ;;
   X-|X-no)
      AC_MSG_RESULT("development")
      CONFIG_MODE=development
      CFLAGS="$CFLAGS $DEBUG_CFLAGS"
      CPPFLAGS="$CPPFLAGS $DEBUG_CPPFLAGS"
      ;;
   X-pg|X-profile)
      AC_MSG_RESULT("profile")
      CONFIG_MODE=profile
      CFLAGS="$CFLAGS $PROFILE_CFLAGS"
      CPPFLAGS="$CPPFLAGS $PROFILE_CPPFLAGS"
      ;;
   *)
      AC_MSG_RESULT("user-defined")
      CONFIG_MODE="$X-enableval"
      ;;
esac

dnl ----------------------------------------------------------------------
dnl Check for system libraries.
dnl
AC_CHECK_LIB(m,ceil)
AC_CHECK_LIB(nsl,xdr_int)	dnl ...for Solaris and hdf4
dnl AC_CHECK_LIB(coug,main)		dnl ...for ASCI/Red

dnl ----------------------------------------------------------------------
dnl Check for system header files.
dnl
AC_HEADER_STDC
AC_HEADER_TIME
dnl Unix
AC_CHECK_HEADERS(sys/resource.h sys/time.h unistd.h sys/ioctl.h sys/stat.h)
AC_CHECK_HEADERS(stddef.h setjmp.h)
AC_CHECK_HEADERS(stdint.h, C9x=yes)
dnl Windows
AC_CHECK_HEADERS(io.h winsock.h sys/timeb.h)

case $host in
    alpha*-dec*-osf*)
	dnl The <sys/sysinfo.h> and <sys/proc.h> are needed on the DEC
	dnl Alpha to turn off UAC fixing. We do *not* attempt to
	dnl locate these files on other systems because there are too
	dnl many problems with including them.
	AC_CHECK_HEADERS(sys/sysinfo.h sys/proc.h)
	;;
esac

dnl ----------------------------------------------------------------------
dnl Data types and their sizes.
dnl
AC_TYPE_OFF_T
AC_CHECK_TYPE(size_t, unsigned long)
AC_CHECK_TYPE(ssize_t, long)
AC_C_BIGENDIAN
AC_CHECK_SIZEOF(char, 1)
AC_CHECK_SIZEOF(short, 2)
AC_CHECK_SIZEOF(int, 4)
AC_CHECK_SIZEOF(long, 4)
AC_CHECK_SIZEOF(long long, 8)
AC_CHECK_SIZEOF(__int64, 8)
AC_CHECK_SIZEOF(float, 4)
AC_CHECK_SIZEOF(double, 8)
AC_CHECK_SIZEOF(long double, 8)

dnl Checkpoint the cache
AC_CACHE_SAVE

dnl Posix.1g types (C9x)
cat >>confdefs.h <<\EOF
#include <sys/types.h>
EOF
if test "Xyes" = "X$C9x"; then
    cat >>confdefs.h <<\EOF
#include <stdint.h>
EOF
fi

AC_CHECK_SIZEOF(        int8_t, 1)
AC_CHECK_SIZEOF(       uint8_t, 1)
AC_CHECK_SIZEOF(  int_least8_t, 1)
AC_CHECK_SIZEOF( uint_least8_t, 1)
AC_CHECK_SIZEOF(   int_fast8_t, 1)
AC_CHECK_SIZEOF(  uint_fast8_t, 1)

AC_CHECK_SIZEOF(       int16_t, 2)
AC_CHECK_SIZEOF(      uint16_t, 2)
AC_CHECK_SIZEOF( int_least16_t, 2)
AC_CHECK_SIZEOF(uint_least16_t, 2)
AC_CHECK_SIZEOF(  int_fast16_t, 2)
AC_CHECK_SIZEOF( uint_fast16_t, 2)

AC_CHECK_SIZEOF(       int32_t, 4)
AC_CHECK_SIZEOF(      uint32_t, 4)
AC_CHECK_SIZEOF( int_least32_t, 4)
AC_CHECK_SIZEOF(uint_least32_t, 4)
AC_CHECK_SIZEOF(  int_fast32_t, 4)
AC_CHECK_SIZEOF( uint_fast32_t, 4)

AC_CHECK_SIZEOF(       int64_t, 8)
AC_CHECK_SIZEOF(      uint64_t, 8)
AC_CHECK_SIZEOF( int_least64_t, 8)
AC_CHECK_SIZEOF(uint_least64_t, 8)
AC_CHECK_SIZEOF(  int_fast64_t, 8)
AC_CHECK_SIZEOF( uint_fast64_t, 8)

AC_CHECK_SIZEOF(size_t, 4)
cat >>confdefs.h <<\EOF
#include <sys/types.h> /*for off_t definition*/
EOF
AC_CHECK_SIZEOF(off_t, 4)

AC_ARG_ENABLE(hsizet,
  [  --disable-hsizet        Datasets can normally be larger than memory
                          and/or files but some compilers are unable to
                          handle this (including versions of GCC before
                          2.8.0).  Disabling the feature causes dataset
                          sizes to be restricted to the size of core memory,
                          or 'size_t'.],
  HSIZET=$enableval)
AC_MSG_CHECKING(for sizeof hsize_t and hssize_t)
AC_SUBST(HSIZET)
case $HSIZET in
    no|small)
	AC_MSG_RESULT(small)
	HSIZET=small
	;;
    *)
        AC_MSG_RESULT(large)
	HSIZET=large
        AC_DEFINE(HAVE_LARGE_HSIZET)
	;;
esac

dnl Checkpoint the cache
AC_CACHE_SAVE

dnl ----------------------------------------------------------------------
dnl Is HDF4 present?  If so then we can compile the h5toh4 converter. We
dnl assume h5toh4 can be compiled and then prove otherwise when we don't find
dnl a header file or library.
dnl
AC_SUBST(H5TOH4)
H5TOH4=h5toh4
AC_SUBST(TESTH5TOH4)
TESTH5TOH4='$(srcdir)/testh5toh4'

dnl NCSA keeps hdf4 in a funny place, but for most sites we don't want these.
test -d /usr/ncsa/include && CPPFLAGS="$CPPFLAGS -I/usr/ncsa/include"
test -d /usr/ncsa/lib && LDFLAGS="$LDFLAGS -L/usr/ncsa/lib"

AC_ARG_WITH(hdf4,[  --with-hdf4=INC,LIB     Use the HDF4 library],,withval=yes)
case $withval in
    yes)
	AC_CHECK_HEADERS(mfhdf.h,,unset H5TOH4 TESTH5TOH4)
	AC_CHECK_LIB(z,deflate,,unset H5TOH4 TESTH5TOH4)
	AC_CHECK_LIB(jpeg,jpeg_start_compress,,unset H5TOH4 TESTH5TOH4)
	AC_CHECK_LIB(df,Hstartaccess,,unset H5TOH4 TESTH5TOH4)
	AC_CHECK_LIB(mfhdf,SDstart,,unset H5TOH4 TESTH5TOH4)
	;;
    no)
	AC_MSG_CHECKING(for HDF4)
	AC_MSG_RESULT(suppressed)
	unset H5TOH4 TESTH5TOH4
	;;
    *)
	hdf4_inc="`echo $withval |cut -f1 -d,`"
	if test "X" != "$hdf4_inc"; then
	    saved_CPPFLAGS="$CPPFLAGS"
	    CPPFLAGS="$CPPFLAGS -I$hdf4_inc"
	    AC_CHECK_HEADERS(mfhdf.h,,
	        CPPFLAGS="$saved_CPPFLAGS"
	        unset H5TOH4 TESTH5TOH4
            )
	else
	    AC_CHECK_HEADERS(mfhdf.h)
	fi
	
	hdf4_lib="`echo $withval |cut -f2 -d, -s`"
	if test "X" != "$hdf4_lib"; then
	    saved_LDFLAGS="$LDFLAGS"
	    LDFLAGS="$LDFLAGS -L$hdf4_lib"
        AC_CHECK_LIB(z,deflate,,unset H5TOH4 TESTH5TOH4)
        AC_CHECK_LIB(jpeg,jpeg_start_compress,,unset H5TOH4 TESTH5TOH4)
        AC_CHECK_LIB(df,Hstartaccess,,unset H5TOH4 TESTH5TOH4)
        AC_CHECK_LIB(mfhdf,SDstart,,unset H5TOH4 TESTH5TOH4)
	else
	    AC_CHECK_LIB(z,deflate,,unset H5TOH4 TESTH5TOH4)
	    AC_CHECK_LIB(jpeg,jpeg_start_compress,,unset H5TOH4 TESTH5TOH4)
	    AC_CHECK_LIB(df,Hstartaccess)
	    AC_CHECK_LIB(mfhdf,SDstart)
	fi
	;;
esac

dnl ----------------------------------------------------------------------
dnl Is the GNU zlib present?  It has a header file `zlib.h' and a library
dnl `-lz' and their locations might be specified with the `--enable-zlib'
dnl command-line switch.  The value is an include path and/or a library path.
dnl If the library path is specified then it must be preceded by a comma.
dnl

AC_ARG_WITH(zlib,[  --with-zlib=INC,LIB     Use the GNU zlib compression],
            ,withval=yes)
case $withval in
    yes)
	AC_CHECK_HEADERS(zlib.h)
	AC_CHECK_LIB(z, compress)
	;;
    no)
	AC_MSG_CHECKING(for GNU zlib)
	AC_MSG_RESULT(suppressed)
	;;
    *)
	zlib_inc="`echo $withval |cut -f1 -d,`"
	if test "X" != "$zlib_inc"; then
	    saved_CPPFLAGS="$CPPFLAGS"
	    CPPFLAGS="$CPPFLAGS -I$zlib_inc"
	    AC_CHECK_HEADERS(zlib.h,,CPPFLAGS="$saved_CPPFLAGS")
        else
	    AC_CHECK_HEADERS(zlib.h)
	fi

	zlib_lib="`echo $withval |cut -f2 -d, -s`"
	if test "X" != "$zlib_lib"; then
	    saved_LDFLAGS="$LDFLAGS"
	    LDFLAGS="$LDFLAGS -L$zlib_lib"
	    AC_CHECK_LIB(z, compress,,LDFLAGS="$saved_LDFLAGS")
	else
	    AC_CHECK_LIB(z, compress)
	fi
	;;
esac

dnl ----------------------------------------------------------------------
dnl Is SSL library present?  It is needed by GLOBUS-GASS and Grid Storage 
dnl driver.
dnl
AC_SUBST(SSL)
SSL=yes

AC_ARG_WITH(ssl,[  --with-ssl=LIB          Use SSL libs from LIB ],,)
if test "X-" != "X-$with_ssl"; then
    LDFLAGS="$LDFLAGS -L$with_ssl"
fi

AC_CHECK_LIB(crypto,main,,unset SSL)
AC_CHECK_LIB(ssl,SSL_get_version,,unset SSL)

dnl ----------------------------------------------------------------------
dnl Is GLOBUS-GASS(1.1.0 or 1.1.1) Library present?  It is also needed by 
dnl the Grid Storage driver.
dnl
AC_SUBST(GASS)
GASS=yes
AC_SUBST(TESTGASS)
TESTGASS='$(srcdir)/testgass'

AC_ARG_WITH(gass,[  --with-gass=INC,LIB     Use the GASS Library [default=no]],
	    ,withval=no)
case $withval in
    yes)
	AC_CHECK_HEADERS(globus_common.h,,unset GASS TESTGASS)
        AC_CHECK_LIB(globus_common,globus_module_activate,,unset GASS TESTGASS)
        AC_CHECK_LIB(globus_gass_cache,main,,unset GASS TESTGASS)
        AC_CHECK_LIB(globus_gaa,main,,unset GASS TESTGASS)
        AC_CHECK_LIB(globus_gss,main,,unset GASS TESTGASS)
        AC_CHECK_LIB(globus_gss_assist,main,,unset GASS TESTGASS)
        AC_CHECK_LIB(globus_io,main,,unset GASS TESTGASS)
        AC_CHECK_LIB(globus_gass_transfer_assist,main,,unset GASS TESTGASS)
        AC_CHECK_LIB(globus_gass_transfer,main,,unset GASS TESTGASS)
        AC_CHECK_LIB(globus_gass_file,globus_gass_open,,unset GASS TESTGASS)
	;;
    no)
	AC_MSG_CHECKING(for GASS)
	AC_MSG_RESULT(suppressed)
	unset GASS TESTGASS
	;;
    *)
	gass_inc="`echo $withval |cut -f1 -d,`"
	if test "X" != "$gass_inc"; then
	    saved_CPPFLAGS="$CPPFLAGS"
	    CPPFLAGS="$CPPFLAGS -I$gass_inc"
	    AC_CHECK_HEADERS(globus_common.h,,
	        CPPFLAGS="$saved_CPPFLAGS"
	        unset GASS TESTGASS
            )
	else
	    AC_CHECK_HEADERS(globus_common.h)
	fi
	
	gass_lib="`echo $withval |cut -f2 -d, -s`"
	if test "X" != "$gass_lib"; then
	    saved_LDFLAGS="$LDFLAGS"
	    LDFLAGS="$LDFLAGS -L$gass_lib"
            AC_CHECK_LIB(globus_common,globus_module_activate,,unset GASS TESTGASS)
            AC_CHECK_LIB(globus_gass_cache,main,,unset GASS TESTGASS)
            AC_CHECK_LIB(globus_gaa,main,,unset GASS TESTGASS)
            AC_CHECK_LIB(globus_gss,main,,unset GASS TESTGASS)
            AC_CHECK_LIB(globus_gss_assist,main,,unset GASS TESTGASS)
            AC_CHECK_LIB(globus_io,main,,unset GASS TESTGASS)
            AC_CHECK_LIB(globus_gass_transfer_assist,main,,unset GASS TESTGASS)
            AC_CHECK_LIB(globus_gass_transfer,main,,unset GASS TESTGASS)
            AC_CHECK_LIB(globus_gass_file,globus_gass_open,,unset GASS TESTGASS)
	else
            AC_CHECK_LIB(globus_common,globus_module_activate,,unset GASS TESTGASS)
            AC_CHECK_LIB(globus_gass_cache,main,,unset GASS TESTGASS)
            AC_CHECK_LIB(globus_gaa,main,,unset GASS TESTGASS)
            AC_CHECK_LIB(globus_gss,main,,unset GASS TESTGASS)
            AC_CHECK_LIB(globus_gss_assist,main,,unset GASS TESTGASS)
            AC_CHECK_LIB(globus_io,main,,unset GASS TESTGASS)
            AC_CHECK_LIB(globus_gass_transfer_assist,main,,unset GASS TESTGASS)
            AC_CHECK_LIB(globus_gass_transfer,main,,unset GASS TESTGASS)
            AC_CHECK_LIB(globus_gass_file,globus_gass_open,,unset GASS TESTGASS)
	fi
	;;
esac
if test "X-" != "X-$GASS"; then
    AC_DEFINE(HAVE_GASS)
fi

dnl ----------------------------------------------------------------------
dnl Are SRB Client and other system libraries(socket, elf) present?  
dnl
AC_SUBST(SRB)
SRB=yes
AC_SUBST(TESTSRB)
TESTSRB='$(srcdir)/testsrb'
AC_ARG_WITH(srb,[  --with-srb=INC,LIB      Use the SRB Library [default=no]],
	    ,withval=no)
case $withval in
    yes)
	AC_CHECK_HEADERS(srbClient.h,,unset SRB TESTSRB)
	AC_CHECK_LIB(elf,main,,unset SRB TESTSRB)
	AC_CHECK_LIB(socket,main,,unset SRB TESTSRB)
	AC_CHECK_LIB(SrbClient,clConnect,,unset SRB TESTSRB)
	;;
    no)
	AC_MSG_CHECKING(for SRB)
	AC_MSG_RESULT(suppressed)
	unset SRB TESTSRB
	;;
    *)
        srb_inc="`echo $withval |cut -f1 -d,`"
	if test "X" != "$srb_inc"; then
	    saved_CPPFLAGS="$CPPFLAGS"
	    CPPFLAGS="$CPPFLAGS -I$srb_inc"
 	    AC_CHECK_HEADERS(srbClient.h,,
 	        CPPFLAGS="$saved_CPPFLAGS"
                unset SRB TESTSRB)
        else
	    AC_CHECK_HEADERS(srbClient.h)
        fi

        srb_lib="`echo $withval |cut -f2 -d, -s`"
	if test "X" != "$srb_lib"; then
	    saved_LDFLAGS="$LDFLAGS"
	    LDFLAGS="$LDFLAGS -L$srb_lib"
	    AC_CHECK_LIB(elf,main,,unset SRB TESTSRB)
            AC_CHECK_LIB(socket,main,,unset SRB TESTSRB)
	    AC_CHECK_LIB(SrbClient,clConnect,,unset SRB TESTSRB)
        else
	    AC_CHECK_LIB(elf,main,,unset SRB TESTSRB)
            AC_CHECK_LIB(socket,main,,unset SRB TESTSRB)
	    AC_CHECK_LIB(SrbClient,clConnect,,unset SRB TESTSRB)
        fi
	;;
esac
if test "X-" != "X-$SRB"; then
    AC_DEFINE(HAVE_SRB)
fi

dnl ----------------------------------------------------------------------
dnl Is Grid Storage present?  If so then we can compile in the Grid Storage driver.
dnl
AC_SUBST(GRIDSTORAGE)
GRIDSTORAGE=yes
AC_SUBST(TESTGRIDSTORAGE)
TESTGRIDSTORAGE='$(srcdir)/testgridstorage'

AC_ARG_WITH(gridstorage,
	[  --with-gridstorage=INC,LIB     Use the Globus Grid Storage driver [default=no]],
	,withval=no)
case $withval in
    yes)
	AC_CHECK_HEADERS(grid_storage_file.h,,unset GRIDSTORAGE TESTGRIDSTORAGE)
	AC_CHECK_LIB(grid_storage_client,main,,unset GRIDSTORAGE TESTGRIDSTORAGE)
	AC_CHECK_LIB(grid_storage_file,grid_storage_open,,unset GRIDSTORAGE TESTGRIDSTORAGE)
	;;
    no)
	AC_MSG_CHECKING(for GRIDSTORAGE)
	AC_MSG_RESULT(suppressed)
	unset GRIDSTORAGE TESTGRIDSTORAGE
	;;
    *)
	gridstorage_inc="`echo $withval |cut -f1 -d,`"
	if test "X" != "$gridstorage_inc"; then
	    saved_CPPFLAGS="$CPPFLAGS"
	    CPPFLAGS="$CPPFLAGS -I$gridstorage_inc"
	    AC_CHECK_HEADERS(grid_storage_file.h,,
	        CPPFLAGS="$saved_CPPFLAGS"
	        unset GRIDSTORAGE TESTGRIDSTORAGE
            )
	else
	    AC_CHECK_HEADERS(grid_storage_file.h)
	fi
	
	gridstorage_lib="`echo $withval |cut -f2 -d, -s`"
	if test "X" != "$gridstorage_lib"; then
	    saved_LDFLAGS="$LDFLAGS"
	    LDFLAGS="$LDFLAGS -L$gridstorage_lib"
            AC_CHECK_LIB(grid_storage_client,main,,unset GRIDSTORAGE TESTGRIDSTORAGE)
            AC_CHECK_LIB(grid_storage_file,grid_storage_open,,unset GRIDSTORAGE TESTGRIDSTORAGE)
	else
            AC_CHECK_LIB(grid_storage_client,main,,unset GRIDSTORAGE TESTGRIDSTORAGE)
            AC_CHECK_LIB(grid_storage_file,grid_storage_open,,unset GRIDSTORAGE TESTGRIDSTORAGE)
	fi
	;;
esac
if test "X-" != "X-$GRIDSTORAGE"; then
    AC_DEFINE(HAVE_GRIDSTORAGE)
fi

dnl ----------------------------------------------------------------------
dnl Is LLNL's PDB present? If so then we'll compile the PDB-to-HDF5
dnl translator.
AC_SUBST(PDB2HDF)
AC_CHECK_LIB(pdb,PD_open)
AC_CHECK_LIB(silo,lite_PD_open)
AC_CHECK_HEADERS(pdb.h,PDB2HDF=pdb2hdf)

dnl Checkpoint the cache
AC_CACHE_SAVE

dnl ----------------------------------------------------------------------
dnl Is the Pthreads library present?  It has a header file `pthread.h' and
dnl a library `-lpthread' and their locations might be specified with the
dnl `--with-pthread' command-line switch.  The value is an include path
dnl and/or a library path.  If the library path is specified then it must
dnl be preceded by a comma.
dnl
AC_SUBST(PTHREAD)
PTHREAD=yes

AC_ARG_WITH(pthread,
	[  --with-pthread=INC,LIB  Use the Pthreads library],
	,withval=no)
case $withval in
    yes)
	AC_CHECK_HEADERS(pthread.h)
    if test `uname` != "FreeBSD"; then
        AC_CHECK_LIB(pthread, pthread_create,,unset PTHREAD)
    else
        CFLAGS="$CFLAGS -D_THREAD_SAFE"
	LDFLAGS="$LDFLAGS -pthread"
    fi
	;;
    no)
	AC_MSG_CHECKING(for pthread)
	AC_MSG_RESULT(suppressed)
	unset PTHREAD
	;;
    *)
	pthread_inc="`echo $withval |cut -f1 -d,`"
	if test "X-" != "X-$pthread_inc"; then
	    saved_CPPFLAGS="$CPPFLAGS"
	    CPPFLAGS="$CPPFLAGS -I$pthread_inc"
	    AC_CHECK_HEADERS(pthread.h,,CPPFLAGS="$saved_CPPFLAGS"; unset PTHREAD)
    else
	    AC_CHECK_HEADERS(pthread.h,,unset PTHREAD)
	fi

	pthread_lib="`echo $withval |cut -f2 -d, -s`"
	if test "X-" != "X-$pthread_lib"; then
	    saved_LDFLAGS="$LDFLAGS"
	    LDFLAGS="$LDFLAGS -L$pthread_lib"
	    AC_CHECK_LIB(pthread, pthread_create,,LDFLAGS="$saved_LDFLAGS"; unset PTHREAD)
	else
	    AC_CHECK_LIB(pthread, pthread_create,,unset PTHREAD)
	fi
	;;
esac

dnl ----------------------------------------------------------------------
dnl Enable thread-safe version of library.  It requires pthread on.
dnl
AC_MSG_CHECKING(for thread safe support)
AC_ARG_ENABLE(threadsafe,
  [  --enable-threadsafe     Enable thread safe capability],
  THREADSAFE=$enableval)

case X-$THREADSAFE in
    X-|X-no)
	AC_MSG_RESULT(no)
	;;
    X-yes)
	if test X- = X-$PTHREAD; then
	    AC_MSG_RESULT(error)
	    AC_MSG_ERROR(needed pthread library not available)
	else
	    AC_MSG_RESULT(yes)
	    THREADSAFE=yes
	fi
	;;
    *)
	AC_MSG_RESULT(error)
	AC_MSG_ERROR(\"$enableval\" is not a valid threadsafe type)
	;;
esac

if test X-yes = X-$THREADSAFE; then
    AC_DEFINE(HAVE_THREADSAFE)
fi

dnl ----------------------------------------------------------------------
dnl How does one figure out the local time zone?  Anyone know of a
dnl Posix way to do this?
dnl

dnl First check if `struct tm' has a `tm_gmtoff' member.
AC_MSG_CHECKING(for tm_gmtoff in struct tm)
AC_TRY_COMPILE([
#include <sys/time.h>
#include <time.h>],[struct tm tm; tm.tm_gmtoff=0;],
AC_DEFINE(HAVE_TM_GMTOFF)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))

dnl check if `struct tm' has a `__tm_gmtoff' member.
AC_MSG_CHECKING(for __tm_gmtoff in struct tm)
AC_TRY_COMPILE([
#include <sys/time.h>
#include <time.h>],[struct tm tm; tm.__tm_gmtoff=0;],
AC_DEFINE(HAVE___TM_GMTOFF)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))

dnl Check whether the global variable `timezone' is defined.
AC_MSG_CHECKING(for global timezone variable)
AC_TRY_LINK([
#include <sys/time.h>
#include <time.h>], [timezone=0;],
AC_DEFINE(HAVE_TIMEZONE)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))

dnl Check whether `struct timezone' is defined.
AC_STRUCT_TIMEZONE
AC_MSG_CHECKING(for struct timezone)
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/time.h>
#include <time.h>],[struct timezone tz; tz.tz_minuteswest=0;],
AC_DEFINE(HAVE_STRUCT_TIMEZONE)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))

dnl ----------------------------------------------------------------------
dnl Does the struct stat have the st_blocks field?  This field is not Posix.
dnl
AC_MSG_CHECKING(for st_blocks in struct stat)
AC_TRY_COMPILE([
#include <sys/stat.h>],[struct stat sb; sb.st_blocks=0;],
AC_DEFINE(HAVE_STAT_ST_BLOCKS)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))

dnl ----------------------------------------------------------------------
dnl How do we figure out the width of a tty in characters?
dnl
AC_CHECK_FUNCS(_getvideoconfig gettextinfo GetConsoleScreenBufferInfo)
AC_CHECK_FUNCS(_scrsize ioctl)

AC_MSG_CHECKING(for struct videoconfig)
AC_TRY_COMPILE(,[struct videoconfig w; w.numtextcols=0;],
AC_DEFINE(HAVE_STRUCT_VIDEOCONFIG)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))

AC_MSG_CHECKING(for struct text_info)
AC_TRY_COMPILE(,[struct text_info w; w.screenwidth=0;],
AC_DEFINE(HAVE_STRUCT_TEXT_INFO)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))

AC_MSG_CHECKING(for TIOCGWINSZ)
AC_TRY_COMPILE([#include <sys/ioctl.h>],[int w=TIOCGWINSZ;],
AC_DEFINE(HAVE_TIOCGWINSZ)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))

AC_MSG_CHECKING(for TIOCGGETD)
AC_TRY_COMPILE([#include <sys/ioctl.h>],[int w=TIOCGETD;],
AC_DEFINE(HAVE_TIOCGETD)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))


dnl ----------------------------------------------------------------------
dnl Check for functions.
dnl
AC_CHECK_FUNCS(getpwuid gethostname system getrusage fork waitpid)
AC_CHECK_FUNCS(gettimeofday BSDgettimeofday difftime snprintf vsnprintf)
AC_CHECK_FUNCS(compress2 setsysinfo longjmp signal sigaction)
AC_TRY_COMPILE([#include<sys/types.h>],
	       [off64_t n = 0;],
	       AC_CHECK_FUNCS(lseek64 fseek64),
	       AC_MSG_RESULT([skipping test for lseek64() and fseek64()]))


dnl ----------------------------------------------------------------------
dnl Check compiler characteristics
dnl

AC_C_CONST
AC_C_INLINE

AC_MSG_CHECKING(for __attribute__ extension)
AC_TRY_COMPILE(,[int __attribute__((unused)) x],
		     AC_DEFINE(HAVE_ATTRIBUTE)
		     AC_MSG_RESULT(yes),
		     AC_MSG_RESULT(no))

AC_MSG_CHECKING(for __FUNCTION__ extension)
AC_TRY_COMPILE(,[(void)__FUNCTION__],
		     AC_DEFINE(HAVE_FUNCTION)
		     AC_MSG_RESULT(yes),
		     AC_MSG_RESULT(no))

dnl ----------------------------------------------------------------------
dnl Try to figure out how to print `long long'.  Some machines use `%lld'
dnl and others use `%qd'.  There may be more!  The final `l' is a
dnl default in case none of the others work.
dnl Need to patch up LD_LIBRARY_PATH so that the execution can find all
dnl the dynamic library.  The correct way to do it should be updating
dnl LD_LIBRARY_PATH along with LDFLAGS or do it with the AC_TRY_RUN macro.
dnl
AC_MSG_CHECKING(how to print long long)
AC_CACHE_VAL(hdf5_cv_printf_ll,
LD_LIBRARY_PATH="$LD_LIBRARY_PATH`echo $LDFLAGS | sed -e 's/-L/:/g' -e 's/ //g'`"
export LD_LIBRARY_PATH
             for hdf5_cv_printf_ll in l L q ll unknown; do
                AC_TRY_RUN([
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
                  main() {char *s=malloc(128);
	             long long x = (long long)1048576 * (long long)1048576;
	             sprintf(s,"%${hdf5_cv_printf_ll}d",x);
	             exit (strcmp(s,"1099511627776"));}],
		 break)
	     done)
AC_MSG_RESULT(%${hdf5_cv_printf_ll}d and %${hdf5_cv_printf_ll}u)
AC_DEFINE_UNQUOTED(PRINTF_LL_WIDTH,"$hdf5_cv_printf_ll")

dnl ----------------------------------------------------------------------
dnl Turn on debugging by setting compiler flags
dnl
AC_MSG_CHECKING(for debug flags)
AC_ARG_ENABLE(debug,
  [  --enable-debug[=all]    Turn on debugging in all packages.  One may also
                          specify a comma-separated list of package names
                          without the leading H5 or the word no.  The default
                          is most packages.],
  DEBUG_PKG=$enableval)

AC_SUBST(DEBUG_PKG)
all_packages="ac,b,d,e,f,g,hg,hl,i,mf,mm,o,p,s,t,v,z"
case X-$DEBUG_PKG in
    X-|X-yes)
	DEBUG_PKG="d,e,f,g,hg,i,mm,o,p,s,t,v,z"
	CPPFLAGS="$CPPFLAGS -UNDEBUG"
	AC_MSG_RESULT(default ($DEBUG_PKG))
	;;
    X-all)
	DEBUG_PKG=$all_packages
	CPPFLAGS="$CPPFLAGS -UNDEBUG"
	AC_MSG_RESULT(all ($DEBUG_PKG))
	;;
    X-no|X-none)
	AC_MSG_RESULT(none)
	DEBUG_PKG=
	CPPFLAGS="$CPPFLAGS -DNDEBUG"
	;;
    *)
	AC_MSG_RESULT($DEBUG_PKG)
	;;
esac

if test "X" != "X$DEBUG_PKG"; then
   for pkg in `echo $DEBUG_PKG | tr 'a-z,' 'A-Z '`; do
      CPPFLAGS="$CPPFLAGS -DH5${pkg}_DEBUG"
   done
fi

dnl ----------------------------------------------------------------------
dnl Enable tracing of the API
dnl
AC_MSG_CHECKING(for API tracing);
AC_ARG_ENABLE(trace,
  [  --disable-trace         Disable API tracing capability],
  TRACE=$enableval)

AC_SUBST(TRACE_API)
if test X = "X$TRACE" -o Xyes = "X$TRACE"; then
   AC_MSG_RESULT(yes)
   TRACE_API=yes
   CPPFLAGS="$CPPFLAGS -DH5_DEBUG_API"
else
   AC_MSG_RESULT(no)
   TRACE_API=no
   CPPFLAGS="$CPPFLAGS -UH5_DEBUG_API"
fi

dnl Checkpoint the cache
AC_CACHE_SAVE

dnl ----------------------------------------------------------------------
dnl The following variables are used to distinguish between building a
dnl serial and parallel library.
dnl
dnl    HAVE_PARALLEL	-- defined in H5config.h if we are building
dnl			   a parallel library even if configure wasn't
dnl			   able to find some header file or library that
dnl			   might be required. This is defined if the
dnl			   compiler looks like a parallel compiler (e.g.,
dnl			   mpicc or mpcc) or if the user explicitly states
dnl			   that a parallel library is being built by supplying
dnl			   the `--enable-parallel' configure switch.
dnl
dnl    PARALLEL		-- This variable is set to a non-null value if
dnl			   configure thinks we're compiling a parallel
dnl			   version of the library.
dnl
dnl    RUNSERIAL	-- This is a command which will be prepended to
dnl			   the executable name to run the executable using
dnl			   a single process. For serial versions of the
dnl			   library this will normally be empty. For parallel
dnl			   versions it might be something like `mpirun -np 1'.
dnl			   The value of this variable is substituted in *.in
dnl			   files.
dnl
dnl    RUNPARALLEL	-- This is a command which will be prepended to
dnl			   the executable name to run the executable on
dnl			   multiple processors. For the serial library the
dnl			   value will normally be the empty string. For
dnl			   parallel library it should be something like
dnl			   `mpi -np $$NPROCS' where NPROCS will eventually
dnl			   contain the number of processors on which to run
dnl			   the executable (the double dollarsigns are to
dnl			   protect the expansion until make executes the
dnl			   command).  The value of this variable is
dnl			   substituted in *.in files.
dnl
AC_SUBST(PARALLEL)
AC_SUBST(RUNSERIAL)
AC_SUBST(RUNPARALLEL)
AC_SUBST(TESTPARALLEL)

dnl ----------------------------------------------------------------------
dnl If the compiler is obviously a parallel compiler then we're building
dnl a parallel version of hdf5 and should define HAVE_PARALLEL. Furthermore,
dnl the name of the compiler might tell us how to run the resulting
dnl executable. For `mpicc' the executable should be run with `mpirun' from
dnl the same directory as mpicc if it exists.
dnl
case "$CC_BASENAME" in
    mpicc)
	# The mpich compiler. Use mpirun from the same directory if it
	# exists.
	PARALLEL=mpicc
	AC_MSG_CHECKING(for mpirun)

	# Find the path where mpicc is located.
	cmd=`echo $CC |cut -f1 -d' '`
        if (echo $cmd |grep / >/dev/null); then
	    path="`echo $cmd |sed 's/\(.*\)\/.*$/\1/'`"
	else
	    for path in `echo $PATH |tr : ' '`; do
		if test -x $path/$cmd; then
		    break;
		fi
	    done
	fi

	# Is there an mpirun at that path?
	if test -x $path/mpirun; then
	    AC_MSG_RESULT($path/mpirun)
	    RUNSERIAL="${RUNSERIAL:-none}"
	    if test "X-" = "X-$RUNPARALLEL"; then
	        RUNPARALLEL="$path/mpirun -np \$\${NPROCS:=2}"
	    fi
	else
	    AC_MSG_RESULT(none)
        fi
	;;

    mpcc|mpcc_r)
	# The IBM compiler
	PARALLEL="$CC_BASENAME"
	;;

    *)
	# Probably not a parallel compiler, but if `--enable-parallel'
	# is defined below then we're still building a parallel hdf5.
	;;
esac

dnl ----------------------------------------------------------------------
dnl What header files and libraries do we have to look for for parallel
dnl support?  For the most part, search paths are already specified with
dnl CPPFLAGS and LDFLAGS or are known to the compiler.  If the user says
dnl `--disable-parallel' but specifies a known parallel compiler (like mpicc
dnl or mpcc) then parallel support is enabled but configure doesn't search
dnl for any parallel header files or libraries.
dnl
AC_ARG_ENABLE(parallel,
  [  --enable-parallel=TYPE  Search for MPI-IO and MPI support files])

AC_MSG_CHECKING(for parallel support files)
case "X-$enable_parallel" in
    X-|X-no|X-none)
	# Either we are not compiling for parallel or the header and library
	# files and locations are known to the compiler (this is the case
	# for a correct installation of mpicc for instance).
	AC_MSG_RESULT(skipped)
	;;

    X-yes)
	# We want to compile a parallel library with a compiler that
	# may already know how to link with MPI and MPI-IO.
	AC_MSG_RESULT(provided by compiler)
	PARALLEL=yes

	# Try link a simple MPI program.  If fail, try again with -lmpi.
	AC_TRY_LINK(,MPI_Init(),,AC_CHECK_LIB(mpi,MPI_Init,,PARALLEL=no))

	# Then try link a simple MPI-IO program.  If fail, try again with
	# -lmpio.
	if test "yes" = "$PARALLEL"; then
	    AC_TRY_LINK(,MPI_File_open(),,
			AC_CHECK_LIB(mpio,MPI_File_open,,PARALLEL=no))
	fi

	# Set RUNPARALLEL to mpirun if not set yet.
	if test "yes" = "$PARALLEL" -a "X-" = "X-$RUNPARALLEL"; then
	    RUNPARALLEL="mpirun -np \$\${NPROCS:=2}"
	fi
	;;

    X-mpich)
	# For normal mpich installation the compiler, mpicc, should know
	# where the MPI and MPI-IO header files are located and know which
	# extra libraries need to be linked and will supply appropriate
	# flags to the underlying compiler.
	AC_MSG_RESULT(mpich)
	AC_MSG_WARN(*** Why aren't you using an mpicc compiler? ***)

	# Apparently mpicc isn't installed correctly so configure must search
	# for the header files and libraries. Actually we only have to search
	# for the libraries in order to get the onto the link line, the user
	# will have already told us about the locations. Fail if something
	# is missing.
	PARALLEL=mpich
	AC_CHECK_LIB(mpich,MPI_Init,,AC_MSG_ERROR(no mpich library))
	;;

    *)
	AC_MSG_RESULT(error)
	AC_MSG_ERROR(\"$enable_parallel\" is not a valid parallel search type)
	;;
esac

dnl ----------------------------------------------------------------------
dnl Should the `testpar' directory participate in the build?
dnl
if test "X-" != "X-$PARALLEL"; then
    TESTPARALLEL=testpar
fi

dnl ----------------------------------------------------------------------
dnl Print some other parallel information and do some sanity checks.
dnl
if test "X-" != "X-$PARALLEL"; then
    # We are building a parallel library
    AC_DEFINE(HAVE_PARALLEL)

    # Display what we found about running programs
    AC_MSG_CHECKING(prefix for running on one processor)
    AC_MSG_RESULT($RUNSERIAL)
    AC_MSG_CHECKING(prefix for running in parallel)
    AC_MSG_RESULT($RUNPARALLEL)

    # Check that we can link a simple MPI and MPI-IO application
    AC_MSG_CHECKING(whether a simple MPI-IO program can be linked)
    AC_TRY_LINK(,[MPI_Init();MPI_File_open();],
		AC_MSG_RESULT(yes),
		AC_MSG_RESULT(no)
	        AC_MSG_ERROR('unable to link a simple MPI-IO application'))


    # There *must* be some way to run in parallel even if it's just the
    # word `none'.
    if test "X-" = "X-$RUNPARALLEL"; then
	AC_MSG_ERROR(no way to run a parallel program)
    fi

    # If RUNSERIAL or RUNPARALLEL is the word `none' then replace it with
    # the empty string.
    if test "X-none" = "X-$RUNSERIAL"; then
	RUNSERIAL=
    fi
    if test "X-none" = "X-$RUNPARALLEL"; then
	RUNPARALLEL=
    fi
fi

dnl ----------------------------------------------------------------------
dnl Set some variables for general configuration information to be saved
dnl and installed with the libraries.
dnl

# HDF5 version from the first line of the README file.
H5_VERSION=`cut -d' ' -f3 $srcdir/README |head -1`
AC_SUBST(H5_VERSION)

# Configuration date
AC_SUBST(CONFIG_DATE) CONFIG_DATE=`date`

# User doing the configuration
AC_SUBST(CONFIG_USER) CONFIG_USER="`whoami`@`hostname`"
if test "X-$ORGANIZATION" != "X-"; then
    CONFIG_USER="$CONFIG_USER at $ORGANIZATION"
fi

# Configuration mode (production, development, profile, etc) saved above.
AC_SUBST(CONFIG_MODE)

# Byte sex from the AC_C_BIGENDIAN macro.
AC_SUBST(BYTESEX)
if test $ac_cv_c_bigendian = yes; then
    BYTESEX="big-endian"
else
    BYTESEX="little-endian"
fi

# Are we compiling static libraries, shared libraries, or both?
AC_SUBST(STATIC_SHARED)
if test "X-$enable_static" = "X-yes" && test "X-$enable_shared" = "X-yes"; then
    STATIC_SHARED="static, shared"
elif test "X-$enable_static" = "X-yes"; then
    STATIC_SHARED="static"
elif test "X-$enable_shared" = "X-yes"; then
    STATIC_SHARED="shared"
else
    STATIC_SHARED="none"
fi

# Parallel support? (set above except empty if none)
PARALLEL=${PARALLEL:-no}

# Compiler with version information
AC_SUBST(CC_VERSION)
if test "X-$cc_vendor" != "X-" && test "X-$cc_version" != "X-"; then
    CC_VERSION="$CC ($cc_vendor-$cc_version)"
else
    # If $CC contains directory component, take it as is;
    # else search it among PATH components.
    if `echo $CC | grep / 2>&1 /dev/null`; then
        CC_VERSION="$CC"	
    else
        for x in `echo $PATH | sed -e 's/:/ /g'`; do
           if test -x $x/$CC; then
               CC_VERSION="$x/$CC"
               break
           fi
       done
    fi
fi


dnl ----------------------------------------------------------------------
dnl Build the Makefiles.  Almost every Makefile.in will begin with the line
dnl `@COMMENCE@' and end with the line `@CONCLUDE@'.  These lines insert
dnl various files from the config directory into the Makefile.
dnl
AC_SUBST_FILE(COMMENCE) COMMENCE=config/commence
AC_SUBST_FILE(CONCLUDE) CONCLUDE=config/conclude

dnl The directory search list
AC_SUBST(SEARCH) SEARCH='$(srcdir) $(top_builddir)/src $(top_srcdir)/src'
cmd='echo $SEARCH |sed "s/ /'$SEARCH_SEP'/g"'
SEARCH="$SEARCH_RULE`eval $cmd`"

dnl We don't need to say when we're entering directories if we're using
dnl GNU make becuase make does it for us.
if test "X$GMAKE" = "Xyes"; then
   AC_SUBST(SETX) SETX=":"
else
   AC_SUBST(SETX) SETX="set -x"
fi

dnl Where is the root of the source tree.  Give an absolute address so
dnl we can find it no matter which directory of the distribution is our
dnl current directory.  The built-in pwd fails on some systems, but the
dnl /bin/pwd version works OK.
if test -x /bin/pwd; then
   pwd=/bin/pwd
else
   pwd=pwd
fi
AC_SUBST(ROOT) ROOT=`$pwd`

dnl Some cleanup stuff
rm -f conftest conftest.o conftest.c dummy.o

dnl Build config.status, touch the stamp files, and build all the Makefiles.
dnl The order is such that the first `make' does not need to update any
dnl configuration information. See config/commence.in for the order in which
dnl things need to be done.

# First the stamp1 file for H5config.h.in
mkdir ./config >/dev/null 2>&1
touch ./config/stamp1

# Then the config.status file (but not makefiles)
saved_no_create=$no_create
no_create=yes
AC_OUTPUT(src/libhdf5.settings config/depend1 config/depend2 config/depend3
	  config/depend4 config/dependN config/commence config/conclude
          Makefile src/Makefile pablo/Makefile test/Makefile
          testpar/Makefile tools/Makefile examples/Makefile
	  doc/Makefile doc/html/Makefile doc/html/Tutor/Makefile)
no_create=$saved_no_create

# Then the stamp2 file for H5config.h
touch ./config/stamp2

# Finally the makefiles
test "$no_create" = yes || ${CONFIG_SHELL-/bin/sh} $CONFIG_STATUS || exit 1