summaryrefslogtreecommitdiff
path: root/configure.ac
blob: b5101519e0ed2964c0b269bdf182905bbedbbd75 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
dnl Process this file with autoconf to create configure.

AC_PREREQ([2.59])

dnl Versioning - scrape the version from configs/default
m4_define([mesa_version],
    [m4_esyscmd([${MAKE-make} -s -f bin/version.mk version | tr -d '\n' | tr -d '\r'])])
m4_ifval(mesa_version,,
    [m4_fatal([Failed to get the Mesa version from `make -f bin/version.mk version`])])

dnl Tell the user about autoconf.html in the --help output
m4_divert_once([HELP_END], [
See docs/autoconf.html for more details on the options for Mesa.])

AC_INIT([Mesa],[mesa_version],
    [https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa])
AC_CONFIG_AUX_DIR([bin])
AC_CANONICAL_HOST

dnl Versions for external dependencies
LIBDRM_REQUIRED=2.4.24
LIBDRM_RADEON_REQUIRED=2.4.24
LIBDRM_INTEL_REQUIRED=2.4.24
DRI2PROTO_REQUIRED=2.1
GLPROTO_REQUIRED=1.4.11
LIBDRM_XORG_REQUIRED=2.4.24
LIBKMS_XORG_REQUIRED=1.0.0

dnl Check for progs
AC_PROG_CPP
AC_PROG_CC
AC_PROG_CXX
AC_CHECK_PROGS([MAKE], [gmake make])
AC_CHECK_PROGS([PYTHON2], [python2 python])
AC_PATH_PROG([MKDEP], [makedepend])
AC_PATH_PROG([SED], [sed])

if test "x$MKDEP" = "x"; then
    AC_MSG_ERROR([makedepend is required to build Mesa])
fi

dnl Our fallback install-sh is a symlink to minstall. Use the existing
dnl configuration in that case.
AC_PROG_INSTALL
test "x$INSTALL" = "x$ac_install_sh" && INSTALL='$(MINSTALL)'

dnl We need a POSIX shell for parts of the build. Assume we have one
dnl in most cases.
case "$host_os" in
solaris*)
    # Solaris /bin/sh is too old/non-POSIX compliant
    AC_PATH_PROGS(POSIX_SHELL, [ksh93 ksh sh])
    SHELL="$POSIX_SHELL"
    ;;
esac

dnl clang is mostly GCC-compatible, but its version is much lower,
dnl so we have to check for it.
AC_MSG_CHECKING([if compiling with clang])

AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([], [[
#ifndef __clang__
       not clang
#endif
]])],
[CLANG=yes], [CLANG=no])

AC_MSG_RESULT([$CLANG])

dnl If we're using GCC, make sure that it is at least version 3.3.0.  Older
dnl versions are explictly not supported.
if test "x$GCC" = xyes -a "x$CLANG" = xno; then
    AC_MSG_CHECKING([whether gcc version is sufficient])
    major=0
    minor=0

    GCC_VERSION=`$CC -dumpversion`
    if test $? -eq 0; then
        major=`echo $GCC_VERSION | cut -d. -f1`
        minor=`echo $GCC_VERSION | cut -d. -f1`
    fi

    if test $major -lt 3 -o $major -eq 3 -a $minor -lt 3 ; then
        AC_MSG_RESULT([no])
        AC_MSG_ERROR([If using GCC, version 3.3.0 or later is required.])
    else
        AC_MSG_RESULT([yes])
    fi
fi


MKDEP_OPTIONS=-fdepend
dnl Ask gcc where it's keeping its secret headers
if test "x$GCC" = xyes; then
    for dir in include include-fixed; do
        GCC_INCLUDES=`$CC -print-file-name=$dir`
        if test "x$GCC_INCLUDES" != x && \
           test "$GCC_INCLUDES" != "$dir" && \
           test -d "$GCC_INCLUDES"; then
            MKDEP_OPTIONS="$MKDEP_OPTIONS -I$GCC_INCLUDES"
        fi
    done
fi
AC_SUBST([MKDEP_OPTIONS])

dnl Make sure the pkg-config macros are defined
m4_ifndef([PKG_PROG_PKG_CONFIG],
    [m4_fatal([Could not locate the pkg-config autoconf macros.
  These are usually located in /usr/share/aclocal/pkg.m4. If your macros
  are in a different location, try setting the environment variable
  ACLOCAL="aclocal -I/other/macro/dir" before running autoreconf.])])
PKG_PROG_PKG_CONFIG()

dnl LIB_DIR - library basename
LIB_DIR=`echo $libdir | $SED 's%.*/%%'`
AC_SUBST([LIB_DIR])

dnl Cache LDFLAGS so we can add EXTRA_LIB_PATH and restore it later
_SAVE_LDFLAGS="$LDFLAGS"
AC_ARG_VAR([EXTRA_LIB_PATH],[Extra -L paths for the linker])
AC_SUBST([EXTRA_LIB_PATH])

dnl Cache CPPFLAGS so we can add *_INCLUDES and restore it later
_SAVE_CPPFLAGS="$CPPFLAGS"
AC_ARG_VAR([X11_INCLUDES],[Extra -I paths for X11 headers])
AC_SUBST([X11_INCLUDES])

dnl Compiler macros
DEFINES=""
AC_SUBST([DEFINES])
case "$host_os" in
linux*|*-gnu*|gnu*)
    DEFINES="$DEFINES -D_GNU_SOURCE -DPTHREADS"
    ;;
solaris*)
    DEFINES="$DEFINES -DPTHREADS -DSVR4"
    ;;
cygwin*)
    DEFINES="$DEFINES -DPTHREADS"
    ;;
esac

dnl Add flags for gcc and g++
if test "x$GCC" = xyes; then
    CFLAGS="$CFLAGS -Wall -Wmissing-prototypes -std=c99"
    if test "x$CLANG" = "xno"; then
       CFLAGS="$CFLAGS -ffast-math"
    fi

    # Enable -fvisibility=hidden if using a gcc that supports it
    save_CFLAGS="$CFLAGS"
    AC_MSG_CHECKING([whether $CC supports -fvisibility=hidden])
    VISIBILITY_CFLAGS="-fvisibility=hidden"
    CFLAGS="$CFLAGS $VISIBILITY_CFLAGS"
    AC_LINK_IFELSE([AC_LANG_PROGRAM()], AC_MSG_RESULT([yes]),
		   [VISIBILITY_CFLAGS=""; AC_MSG_RESULT([no])]);

    # Restore CFLAGS; VISIBILITY_CFLAGS are added to it where needed.
    CFLAGS=$save_CFLAGS

    # Work around aliasing bugs - developers should comment this out
    CFLAGS="$CFLAGS -fno-strict-aliasing"
fi
if test "x$GXX" = xyes; then
    CXXFLAGS="$CXXFLAGS -Wall"

    # Enable -fvisibility=hidden if using a gcc that supports it
    save_CXXFLAGS="$CXXFLAGS"
    AC_MSG_CHECKING([whether $CXX supports -fvisibility=hidden])
    VISIBILITY_CXXFLAGS="-fvisibility=hidden"
    CXXFLAGS="$CXXFLAGS $VISIBILITY_CXXFLAGS"
    AC_LINK_IFELSE([AC_LANG_PROGRAM()], AC_MSG_RESULT([yes]),
		   [VISIBILITY_CXXFLAGS="" ; AC_MSG_RESULT([no])]);

    # Restore CXXFLAGS; VISIBILITY_CXXFLAGS are added to it where needed.
    CXXFLAGS=$save_CXXFLAGS

    # Work around aliasing bugs - developers should comment this out
    CXXFLAGS="$CXXFLAGS -fno-strict-aliasing"
fi

AC_SUBST([VISIBILITY_CFLAGS])
AC_SUBST([VISIBILITY_CXXFLAGS])

dnl These should be unnecessary, but let the user set them if they want
AC_ARG_VAR([OPT_FLAGS], [Additional optimization flags for the compiler.
    Default is to use CFLAGS.])
AC_ARG_VAR([ARCH_FLAGS], [Additional architecture specific flags for the
    compiler. Default is to use CFLAGS.])
AC_SUBST([OPT_FLAGS])
AC_SUBST([ARCH_FLAGS])

dnl
dnl Hacks to enable 32 or 64 bit build
dnl
AC_ARG_ENABLE([32-bit],
    [AS_HELP_STRING([--enable-32-bit],
        [build 32-bit libraries @<:@default=auto@:>@])],
    [enable_32bit="$enableval"],
    [enable_32bit=auto]
)
if test "x$enable_32bit" = xyes; then
    if test "x$GCC" = xyes; then
        CFLAGS="$CFLAGS -m32"
        ARCH_FLAGS="$ARCH_FLAGS -m32"
    fi
    if test "x$GXX" = xyes; then
        CXXFLAGS="$CXXFLAGS -m32"
    fi
fi
AC_ARG_ENABLE([64-bit],
    [AS_HELP_STRING([--enable-64-bit],
        [build 64-bit libraries @<:@default=auto@:>@])],
    [enable_64bit="$enableval"],
    [enable_64bit=auto]
)
if test "x$enable_64bit" = xyes; then
    if test "x$GCC" = xyes; then
        CFLAGS="$CFLAGS -m64"
    fi
    if test "x$GXX" = xyes; then
        CXXFLAGS="$CXXFLAGS -m64"
    fi
fi

dnl
dnl shared/static libraries, mimic libtool options
dnl
AC_ARG_ENABLE([static],
    [AS_HELP_STRING([--enable-static],
        [build static libraries @<:@default=disabled@:>@])],
    [enable_static="$enableval"],
    [enable_static=no]
)
case "x$enable_static" in
xyes|xno ) ;;
x ) enable_static=no ;;
* )
    AC_MSG_ERROR([Static library option '$enable_static' is not a valid])
    ;;
esac
AC_ARG_ENABLE([shared],
    [AS_HELP_STRING([--disable-shared],
        [build shared libraries @<:@default=enabled@:>@])],
    [enable_shared="$enableval"],
    [enable_shared=yes]
)
case "x$enable_shared" in
xyes|xno ) ;;
x ) enable_shared=yes ;;
* )
    AC_MSG_ERROR([Shared library option '$enable_shared' is not a valid])
    ;;
esac

dnl Can't have static and shared libraries, default to static if user
dnl explicitly requested. If both disabled, set to static since shared
dnl was explicitly requirested.
case "x$enable_static$enable_shared" in
xyesyes )
    AC_MSG_WARN([Can't build static and shared libraries, disabling shared])
    enable_shared=no
    ;;
xnono )
    AC_MSG_WARN([Can't disable both static and shared libraries, enabling static])
    enable_static=yes
    ;;
esac

dnl
dnl mklib options
dnl
AC_ARG_VAR([MKLIB_OPTIONS],[Options for the Mesa library script, mklib])
if test "$enable_static" = yes; then
    MKLIB_OPTIONS="$MKLIB_OPTIONS -static"
fi
AC_SUBST([MKLIB_OPTIONS])

dnl
dnl other compiler options
dnl
AC_ARG_ENABLE([debug],
    [AS_HELP_STRING([--enable-debug],
        [use debug compiler flags and macros @<:@default=disabled@:>@])],
    [enable_debug="$enableval"],
    [enable_debug=no]
)
if test "x$enable_debug" = xyes; then
    DEFINES="$DEFINES -DDEBUG"
    if test "x$GCC" = xyes; then
        CFLAGS="$CFLAGS -g"
    fi
    if test "x$GXX" = xyes; then
        CXXFLAGS="$CXXFLAGS -g"
    fi
fi

dnl
dnl library names
dnl
LIB_PREFIX_GLOB='lib'
LIB_VERSION_SEPARATOR='.'
if test "$enable_static" = yes; then
    LIB_EXTENSION='a'
else
    case "$host_os" in
    darwin* )
        LIB_EXTENSION='dylib' ;;
    cygwin* )
        dnl prefix can be 'cyg' or 'lib'
        LIB_PREFIX_GLOB='???'
        LIB_VERSION_SEPARATOR='-'
        LIB_EXTENSION='dll' ;;
    aix* )
        LIB_EXTENSION='a' ;;
    * )
        LIB_EXTENSION='so' ;;
    esac
fi

GL_LIB_NAME='lib$(GL_LIB).'${LIB_EXTENSION}
GLU_LIB_NAME='lib$(GLU_LIB).'${LIB_EXTENSION}
GLUT_LIB_NAME='lib$(GLUT_LIB).'${LIB_EXTENSION}
GLW_LIB_NAME='lib$(GLW_LIB).'${LIB_EXTENSION}
OSMESA_LIB_NAME='lib$(OSMESA_LIB).'${LIB_EXTENSION}
EGL_LIB_NAME='lib$(EGL_LIB).'${LIB_EXTENSION}
GLESv1_CM_LIB_NAME='lib$(GLESv1_CM_LIB).'${LIB_EXTENSION}
GLESv2_LIB_NAME='lib$(GLESv2_LIB).'${LIB_EXTENSION}
VG_LIB_NAME='lib$(VG_LIB).'${LIB_EXTENSION}
GLAPI_LIB_NAME='lib$(GLAPI_LIB).'${LIB_EXTENSION}
WAYLAND_EGL_LIB_NAME='lib$(WAYLAND_EGL_LIB).'${LIB_EXTENSION}

GL_LIB_GLOB=${LIB_PREFIX_GLOB}'$(GL_LIB)'${LIB_VERSION_SEPARATOR}'*'${LIB_EXTENSION}'*'
GLU_LIB_GLOB=${LIB_PREFIX_GLOB}'$(GLU_LIB)'${LIB_VERSION_SEPARATOR}'*'${LIB_EXTENSION}'*'
GLUT_LIB_GLOB=${LIB_PREFIX_GLOB}'$(GLUT_LIB)'${LIB_VERSION_SEPARATOR}'*'${LIB_EXTENSION}'*'
GLW_LIB_GLOB=${LIB_PREFIX_GLOB}'$(GLW_LIB)'${LIB_VERSION_SEPARATOR}'*'${LIB_EXTENSION}'*'
OSMESA_LIB_GLOB=${LIB_PREFIX_GLOB}'$(OSMESA_LIB)'${LIB_VERSION_SEPARATOR}'*'${LIB_EXTENSION}'*'
EGL_LIB_GLOB=${LIB_PREFIX_GLOB}'$(EGL_LIB)'${LIB_VERSION_SEPARATOR}'*'${LIB_EXTENSION}'*'
EGL_LIB_GLOB=${LIB_PREFIX_GLOB}'$(EGL_LIB)'${LIB_VERSION_SEPARATOR}'*'${LIB_EXTENSION}'*'
GLESv1_CM_LIB_GLOB=${LIB_PREFIX_GLOB}'$(GLESv1_CM_LIB)'${LIB_VERSION_SEPARATOR}'*'${LIB_EXTENSION}'*'
GLESv2_LIB_GLOB=${LIB_PREFIX_GLOB}'$(GLESv2_LIB)'${LIB_VERSION_SEPARATOR}'*'${LIB_EXTENSION}'*'
VG_LIB_GLOB=${LIB_PREFIX_GLOB}'$(VG_LIB)'${LIB_VERSION_SEPARATOR}'*'${LIB_EXTENSION}'*'
GLAPI_LIB_GLOB=${LIB_PREFIX_GLOB}'$(GLAPI_LIB)'${LIB_VERSION_SEPARATOR}'*'${LIB_EXTENSION}'*'
WAYLAND_EGL_LIB_GLOB=${LIB_PREFIX_GLOB}'$(WAYLAND_EGL_LIB)'${LIB_VERSION_SEPARATOR}'*'${LIB_EXTENSION}'*'

AC_SUBST([GL_LIB_NAME])
AC_SUBST([GLU_LIB_NAME])
AC_SUBST([GLUT_LIB_NAME])
AC_SUBST([GLW_LIB_NAME])
AC_SUBST([OSMESA_LIB_NAME])
AC_SUBST([EGL_LIB_NAME])
AC_SUBST([GLESv1_CM_LIB_NAME])
AC_SUBST([GLESv2_LIB_NAME])
AC_SUBST([VG_LIB_NAME])
AC_SUBST([GLAPI_LIB_NAME])
AC_SUBST([WAYLAND_EGL_LIB_NAME])

AC_SUBST([GL_LIB_GLOB])
AC_SUBST([GLU_LIB_GLOB])
AC_SUBST([GLUT_LIB_GLOB])
AC_SUBST([GLW_LIB_GLOB])
AC_SUBST([OSMESA_LIB_GLOB])
AC_SUBST([EGL_LIB_GLOB])
AC_SUBST([GLESv1_CM_LIB_GLOB])
AC_SUBST([GLESv2_LIB_GLOB])
AC_SUBST([VG_LIB_GLOB])
AC_SUBST([GLAPI_LIB_GLOB])
AC_SUBST([WAYLAND_EGL_LIB_GLOB])

dnl
dnl Arch/platform-specific settings
dnl
AC_ARG_ENABLE([asm],
    [AS_HELP_STRING([--disable-asm],
        [disable assembly usage @<:@default=enabled on supported plaforms@:>@])],
    [enable_asm="$enableval"],
    [enable_asm=yes]
)
asm_arch=""
ASM_FLAGS=""
MESA_ASM_SOURCES=""
GLAPI_ASM_SOURCES=""
AC_MSG_CHECKING([whether to enable assembly])
test "x$enable_asm" = xno && AC_MSG_RESULT([no])
# disable if cross compiling on x86/x86_64 since we must run gen_matypes
if test "x$enable_asm" = xyes && test "x$cross_compiling" = xyes; then
    case "$host_cpu" in
    i?86 | x86_64)
        enable_asm=no
        AC_MSG_RESULT([no, cross compiling])
        ;;
    esac
fi
# check for supported arches
if test "x$enable_asm" = xyes; then
    case "$host_cpu" in
    i?86)
        case "$host_os" in
        linux* | *freebsd* | dragonfly* | *netbsd*)
            test "x$enable_64bit" = xyes && asm_arch=x86_64 || asm_arch=x86
            ;;
        esac
        ;;
    x86_64)
        case "$host_os" in
        linux* | *freebsd* | dragonfly* | *netbsd*)
            test "x$enable_32bit" = xyes && asm_arch=x86 || asm_arch=x86_64
            ;;
        esac
        ;;
    powerpc)
        case "$host_os" in
        linux*)
            asm_arch=ppc
            ;;
        esac
        ;;
    sparc*)
        case "$host_os" in
        linux*)
            asm_arch=sparc
            ;;
        esac
        ;;
    esac

    case "$asm_arch" in
    x86)
        ASM_FLAGS="-DUSE_X86_ASM -DUSE_MMX_ASM -DUSE_3DNOW_ASM -DUSE_SSE_ASM"
        MESA_ASM_SOURCES='$(X86_SOURCES)'
        GLAPI_ASM_SOURCES='$(X86_API)'
        AC_MSG_RESULT([yes, x86])
        ;;
    x86_64)
        ASM_FLAGS="-DUSE_X86_64_ASM"
        MESA_ASM_SOURCES='$(X86-64_SOURCES)'
        GLAPI_ASM_SOURCES='$(X86-64_API)'
        AC_MSG_RESULT([yes, x86_64])
        ;;
    ppc)
        ASM_FLAGS="-DUSE_PPC_ASM -DUSE_VMX_ASM"
        MESA_ASM_SOURCES='$(PPC_SOURCES)'
        AC_MSG_RESULT([yes, ppc])
        ;;
    sparc)
        ASM_FLAGS="-DUSE_SPARC_ASM"
        MESA_ASM_SOURCES='$(SPARC_SOURCES)'
        GLAPI_ASM_SOURCES='$(SPARC_API)'
        AC_MSG_RESULT([yes, sparc])
        ;;
    *)
        AC_MSG_RESULT([no, platform not supported])
        ;;
    esac
fi
AC_SUBST([ASM_FLAGS])
AC_SUBST([MESA_ASM_SOURCES])
AC_SUBST([GLAPI_ASM_SOURCES])

dnl PIC code macro
MESA_PIC_FLAGS

dnl Check to see if dlopen is in default libraries (like Solaris, which
dnl has it in libc), or if libdl is needed to get it.
AC_CHECK_FUNC([dlopen], [],
    [AC_CHECK_LIB([dl], [dlopen], [DLOPEN_LIBS="-ldl"])])
AC_SUBST([DLOPEN_LIBS])

dnl See if posix_memalign is available
AC_CHECK_FUNC([posix_memalign], [DEFINES="$DEFINES -DHAVE_POSIX_MEMALIGN"])

dnl SELinux awareness.
AC_ARG_ENABLE([selinux],
    [AS_HELP_STRING([--enable-selinux],
        [Build SELinux-aware Mesa @<:@default=disabled@:>@])],
    [MESA_SELINUX="$enableval"],
    [MESA_SELINUX=no])
if test "x$enable_selinux" = "xyes"; then
    AC_CHECK_HEADER([selinux/selinux.h],[],
                    [AC_MSG_ERROR([SELinux headers not found])])
    AC_CHECK_LIB([selinux],[is_selinux_enabled],[],
                 [AC_MSG_ERROR([SELinux library not found])])
    SELINUX_LIBS="-lselinux"
    DEFINES="$DEFINES -DMESA_SELINUX"
fi

dnl Determine which APIs to support
AC_ARG_ENABLE([opengl],
    [AS_HELP_STRING([--disable-opengl],
        [disable support for standard OpenGL API @<:@default=no@:>@])],
    [enable_opengl="$enableval"],
    [enable_opengl=yes])
AC_ARG_ENABLE([gles1],
    [AS_HELP_STRING([--enable-gles1],
        [enable support for OpenGL ES 1.x API @<:@default=no@:>@])],
    [enable_gles1="$enableval"],
    [enable_gles1=no])
AC_ARG_ENABLE([gles2],
    [AS_HELP_STRING([--enable-gles2],
        [enable support for OpenGL ES 2.x API @<:@default=no@:>@])],
    [enable_gles2="$enableval"],
    [enable_gles2=no])
AC_ARG_ENABLE([gles-overlay],
    [AS_HELP_STRING([--enable-gles-overlay],
        [DEPRECATED.  Same as --enable-gles1 and --enable-gles2])],
    [enable_gles1="$enableval"; enable_gles2="$enableval"],
    [])

AC_ARG_ENABLE([openvg],
    [AS_HELP_STRING([--enable-openvg],
        [enable support for OpenVG API @<:@default=no@:>@])],
    [enable_openvg="$enableval"],
    [enable_openvg=no])

dnl smooth the transition; should be removed eventually
if test "x$enable_openvg" = xno; then
    case "x$with_state_trackers" in
    x*vega*)
        AC_MSG_WARN([vega state tracker is enabled without --enable-openvg])
        enable_openvg=yes
        ;;
    esac
fi

if test "x$enable_opengl" = xno -a \
        "x$enable_gles1" = xno -a \
        "x$enable_gles2" = xno -a \
        "x$enable_openvg" = xno; then
    AC_MSG_ERROR([at least one API should be enabled])
fi

API_DEFINES=""
if test "x$enable_opengl" = xno; then
    API_DEFINES="$API_DEFINES -DFEATURE_GL=0"
else
    API_DEFINES="$API_DEFINES -DFEATURE_GL=1"
fi
if test "x$enable_gles1" = xyes; then
    API_DEFINES="$API_DEFINES -DFEATURE_ES1=1"
fi
if test "x$enable_gles2" = xyes; then
    API_DEFINES="$API_DEFINES -DFEATURE_ES2=1"
fi
AC_SUBST([API_DEFINES])

AC_ARG_ENABLE([shared-glapi],
    [AS_HELP_STRING([--enable-shared-glapi],
        [EXPERIMENTAL.  Enable shared glapi for OpenGL @<:@default=no@:>@])],
    [enable_shared_glapi="$enableval"],
    [enable_shared_glapi=no])

SHARED_GLAPI="0"
if test "x$enable_shared_glapi" = xyes; then
    SHARED_GLAPI="1"
fi
AC_SUBST([SHARED_GLAPI])

dnl
dnl Driver configuration. Options are xlib, dri and osmesa right now.
dnl More later: fbdev, ...
dnl
default_driver="xlib"

case "$host_os" in
linux*)
    case "$host_cpu" in
    i*86|x86_64|powerpc*|sparc*) default_driver="dri";;
    esac
    ;;
*freebsd* | dragonfly* | *netbsd*)
    case "$host_cpu" in
    i*86|x86_64|powerpc*|sparc*) default_driver="dri";;
    esac
    ;;
esac

if test "x$enable_opengl" = xno; then
    default_driver="no"
fi

AC_ARG_WITH([driver],
    [AS_HELP_STRING([--with-driver=DRIVER],
        [driver for Mesa: xlib,dri,osmesa @<:@default=dri when available, or xlib@:>@])],
    [mesa_driver="$withval"],
    [mesa_driver="$default_driver"])
dnl Check for valid option
case "x$mesa_driver" in
xxlib|xdri|xosmesa)
    if test "x$enable_opengl" = xno; then
        AC_MSG_ERROR([Driver '$mesa_driver' requires OpenGL enabled])
    fi
    ;;
xno)
    ;;
*)
    AC_MSG_ERROR([Driver '$mesa_driver' is not a valid option])
    ;;
esac

dnl
dnl Driver specific build directories
dnl

dnl this variable will be prepended to SRC_DIRS and is not exported
CORE_DIRS=""

SRC_DIRS=""
GLU_DIRS="sgi"
GALLIUM_DIRS="auxiliary drivers state_trackers"
GALLIUM_TARGET_DIRS=""
GALLIUM_WINSYS_DIRS="sw"
GALLIUM_DRIVERS_DIRS="softpipe failover galahad trace rbug noop identity"
GALLIUM_STATE_TRACKERS_DIRS=""

# build shared-glapi if enabled for OpenGL or if OpenGL ES is enabled
case "x$enable_shared_glapi$enable_gles1$enable_gles2" in
x*yes*)
    CORE_DIRS="$CORE_DIRS mapi/shared-glapi"
    ;;
esac

# build glapi if OpenGL is enabled
if test "x$enable_opengl" = xyes; then
    CORE_DIRS="$CORE_DIRS mapi/glapi"
fi

# build es1api if OpenGL ES 1.x is enabled
if test "x$enable_gles1" = xyes; then
    CORE_DIRS="$CORE_DIRS mapi/es1api"
fi

# build es2api if OpenGL ES 2.x is enabled
if test "x$enable_gles2" = xyes; then
    CORE_DIRS="$CORE_DIRS mapi/es2api"
fi

# build vgapi if OpenVG is enabled
if test "x$enable_openvg" = xyes; then
    CORE_DIRS="$CORE_DIRS mapi/vgapi"
fi

# build glsl and mesa if OpenGL or OpenGL ES is enabled
case "x$enable_opengl$enable_gles1$enable_gles2" in
x*yes*)
    CORE_DIRS="$CORE_DIRS glsl mesa"
    ;;
esac

case "$mesa_driver" in
xlib)
    DRIVER_DIRS="x11"
    GALLIUM_WINSYS_DIRS="$GALLIUM_WINSYS_DIRS sw/xlib"
    GALLIUM_TARGET_DIRS="$GALLIUM_TARGET_DIRS libgl-xlib"
    ;;
dri)
    SRC_DIRS="$SRC_DIRS glx"
    DRIVER_DIRS="dri"
    GALLIUM_WINSYS_DIRS="$GALLIUM_WINSYS_DIRS sw/xlib sw/dri"
    ;;
osmesa)
    DRIVER_DIRS="osmesa"
    ;;
no)
    DRIVER_DRIS=""
    ;;
esac
AC_SUBST([SRC_DIRS])
AC_SUBST([GLU_DIRS])
AC_SUBST([DRIVER_DIRS])
AC_SUBST([GALLIUM_DIRS])
AC_SUBST([GALLIUM_TARGET_DIRS])
AC_SUBST([GALLIUM_WINSYS_DIRS])
AC_SUBST([GALLIUM_DRIVERS_DIRS])
AC_SUBST([GALLIUM_STATE_TRACKERS_DIRS])
AC_SUBST([MESA_LLVM])

dnl
dnl Find out if X is available. The variable have_x is set if libX11 is
dnl found to mimic AC_PATH_XTRA.
dnl
if test -n "$PKG_CONFIG"; then
    AC_MSG_CHECKING([pkg-config files for X11 are available])
    PKG_CHECK_EXISTS([x11],[
        x11_pkgconfig=yes
        have_x=yes
        ],[
        x11_pkgconfig=no
    ])
    AC_MSG_RESULT([$x11_pkgconfig])
else
    x11_pkgconfig=no
fi
dnl Use the autoconf macro if no pkg-config files
if test "$x11_pkgconfig" = yes; then
    PKG_CHECK_MODULES([X11], [x11])
else
    AC_PATH_XTRA
    test -z "$X11_CFLAGS" && X11_CFLAGS="$X_CFLAGS"
    test -z "$X11_LIBS" && X11_LIBS="$X_LIBS -lX11"
    AC_SUBST([X11_CFLAGS])
    AC_SUBST([X11_LIBS])
fi

dnl Try to tell the user that the --x-* options are only used when
dnl pkg-config is not available. This must be right after AC_PATH_XTRA.
m4_divert_once([HELP_BEGIN],
[These options are only used when the X libraries cannot be found by the
pkg-config utility.])

dnl We need X for xlib and dri, so bomb now if it's not found
case "$mesa_driver" in
xlib|dri)
    if test "$no_x" = yes; then
        AC_MSG_ERROR([X11 development libraries needed for $mesa_driver driver])
    fi
    ;;
esac

dnl XCB - this is only used for GLX right now
AC_ARG_ENABLE([xcb],
    [AS_HELP_STRING([--enable-xcb],
        [use XCB for GLX @<:@default=disabled@:>@])],
    [enable_xcb="$enableval"],
    [enable_xcb=no])
if test "x$enable_xcb" = xyes; then
    DEFINES="$DEFINES -DUSE_XCB"
else
    enable_xcb=no
fi

dnl
dnl libGL configuration per driver
dnl
case "$mesa_driver" in
xlib)
    if test "$x11_pkgconfig" = yes; then
        PKG_CHECK_MODULES([XLIBGL], [x11 xext])
        GL_PC_REQ_PRIV="x11 xext"
        X11_INCLUDES="$X11_INCLUDES $XLIBGL_CFLAGS"
        GL_LIB_DEPS="$XLIBGL_LIBS"
    else
        # should check these...
        X11_INCLUDES="$X11_INCLUDES $X_CFLAGS"
        GL_LIB_DEPS="$X_LIBS -lX11 -lXext"
        GL_PC_LIB_PRIV="$GL_LIB_DEPS"
        GL_PC_CFLAGS="$X11_INCLUDES"
    fi
    GL_LIB_DEPS="$GL_LIB_DEPS $SELINUX_LIBS -lm -lpthread"
    GL_PC_LIB_PRIV="$GL_PC_LIB_PRIV $SELINUX_LIBS -lm -lpthread"

    # if static, move the external libraries to the programs
    # and empty the libraries for libGL
    if test "$enable_static" = yes; then
        APP_LIB_DEPS="$APP_LIB_DEPS $GL_LIB_DEPS"
        GL_LIB_DEPS=""
    fi
    ;;
dri|no) # these checks are still desired when there is no mesa_driver
    # DRI must be shared, I think
    if test "$enable_static" = yes; then
        AC_MSG_ERROR([Can't use static libraries for DRI drivers])
    fi

    # Check for libdrm
    PKG_CHECK_MODULES([LIBDRM], [libdrm >= $LIBDRM_REQUIRED])
    PKG_CHECK_MODULES([DRI2PROTO], [dri2proto >= $DRI2PROTO_REQUIRED])
    PKG_CHECK_MODULES([GLPROTO], [glproto >= $GLPROTO_REQUIRED])
    GL_PC_REQ_PRIV="libdrm >= $LIBDRM_REQUIRED dri2proto >= $DRI2PROTO_REQUIRED glproto >= $GLPROTO_REQUIRED"
    DRI_PC_REQ_PRIV="libdrm >= $LIBDRM_REQUIRED"

    # find the DRI deps for libGL
    if test "$x11_pkgconfig" = yes; then
        dri_modules="x11 xext xdamage xfixes"

        # add xf86vidmode if available
        PKG_CHECK_MODULES([XF86VIDMODE], [xxf86vm], HAVE_XF86VIDMODE=yes, HAVE_XF86VIDMODE=no)
        if test "$HAVE_XF86VIDMODE" = yes ; then
            dri_modules="$dri_modules xxf86vm"
        fi

        # add xcb modules if necessary
        if test "$enable_xcb" = yes; then
            dri_modules="$dri_modules x11-xcb xcb-glx"
        fi

        PKG_CHECK_MODULES([DRIGL], [$dri_modules])
        GL_PC_REQ_PRIV="$GL_PC_REQ_PRIV $dri_modules"
        X11_INCLUDES="$X11_INCLUDES $DRIGL_CFLAGS"
        GL_LIB_DEPS="$DRIGL_LIBS"
    else
        # should check these...
        X11_INCLUDES="$X11_INCLUDES $X_CFLAGS"
        GL_LIB_DEPS="$X_LIBS -lX11 -lXext -lXxf86vm -lXdamage -lXfixes"
        GL_PC_LIB_PRIV="$GL_LIB_DEPS"
        GL_PC_CFLAGS="$X11_INCLUDES"

        # XCB can only be used from pkg-config
        if test "$enable_xcb" = yes; then
            PKG_CHECK_MODULES([XCB],[x11-xcb xcb-glx])
            GL_PC_REQ_PRIV="$GL_PC_REQ_PRIV x11-xcb xcb-glx"
            X11_INCLUDES="$X11_INCLUDES $XCB_CFLAGS"
            GL_LIB_DEPS="$GL_LIB_DEPS $XCB_LIBS"
        fi
    fi

    # need DRM libs, -lpthread, etc.
    GL_LIB_DEPS="$GL_LIB_DEPS $LIBDRM_LIBS -lm -lpthread $DLOPEN_LIBS"
    GL_PC_LIB_PRIV="-lm -lpthread $DLOPEN_LIBS"
    GLESv1_CM_LIB_DEPS="$LIBDRM_LIBS -lm -lpthread $DLOPEN_LIBS"
    GLESv1_CM_PC_LIB_PRIV="-lm -lpthread $DLOPEN_LIBS"
    GLESv2_LIB_DEPS="$LIBDRM_LIBS -lm -lpthread $DLOPEN_LIBS"
    GLESv2_PC_LIB_PRIV="-lm -lpthread $DLOPEN_LIBS"
    ;;
osmesa)
    # No libGL for osmesa
    GL_LIB_DEPS=""
    ;;
esac
AC_SUBST([GL_LIB_DEPS])
AC_SUBST([GL_PC_REQ_PRIV])
AC_SUBST([GL_PC_LIB_PRIV])
AC_SUBST([GL_PC_CFLAGS])
AC_SUBST([DRI_PC_REQ_PRIV])
AC_SUBST([GLESv1_CM_LIB_DEPS])
AC_SUBST([GLESv1_CM_PC_LIB_PRIV])
AC_SUBST([GLESv2_LIB_DEPS])
AC_SUBST([GLESv2_PC_LIB_PRIV])

GLAPI_LIB_DEPS="-lpthread"
AC_SUBST([GLAPI_LIB_DEPS])


dnl Setup default DRI CFLAGS
DRI_CFLAGS='$(CFLAGS)'
DRI_CXXFLAGS='$(CXXFLAGS)'
DRI_LIB_DEPS='$(TOP)/src/mesa/libmesa.a'
MESA_MODULES='$(TOP)/src/mesa/libmesa.a'

AC_ARG_ENABLE([shared-dricore],
    [AS_HELP_STRING([--enable-shared-dricore],
        [link DRI modules with shared core DRI routines @<:@default=disabled@:>@])],
    [enable_dricore="$enableval"],
    [enable_dricore=no])
if test "$mesa_driver" = dri ; then
   if test "$enable_dricore" = yes ; then
      if test "$GCC$GXX" != yesyes ; then
      	 AC_MSG_WARN([Shared dricore requires GCC-compatible rpath handling.  Disabling shared dricore])
	 enable_dricore=no
      else
	 DRICORE_GLSL_LIBS='$(TOP)/$(LIB_DIR)/libglsl.so'
	 DRICORE_LIBS='$(TOP)/$(LIB_DIR)/libdricore.so'
	 DRICORE_LIB_DEPS='-L$(TOP)/$(LIB_DIR) -Wl,-R$(DRI_DRIVER_INSTALL_DIR) -lglsl'
      	 DRI_LIB_DEPS='-L$(TOP)/$(LIB_DIR) -Wl,-R$(DRI_DRIVER_INSTALL_DIR) -ldricore -lglsl'
      	 DRI_CFLAGS='$(CFLAGS_NOVISIBILITY) -DUSE_DRICORE'
      	 DRI_CXXFLAGS='$(CXXFLAGS_NOVISIBILITY) -DUSE_DRICORE'
      	 MESA_MODULES='$(DRICORE_LIBS) $(DRICORE_GLSL_LIBS)'
      fi
   fi
fi
AC_SUBST([DRICORE_LIBS])
AC_SUBST([DRICORE_GLSL_LIBS])
AC_SUBST([DRICORE_LIB_DEPS])
AC_SUBST([DRI_CXXFLAGS])
AC_SUBST([DRI_CFLAGS])
AC_SUBST([MESA_MODULES])

AC_SUBST([HAVE_XF86VIDMODE])

PKG_CHECK_MODULES([LIBDRM_RADEON],
		  [libdrm_radeon >= $LIBDRM_RADEON_REQUIRED],
		  HAVE_LIBDRM_RADEON=yes,
		  HAVE_LIBDRM_RADEON=no)

dnl
dnl More X11 setup
dnl
if test "$mesa_driver" = xlib; then
    DEFINES="$DEFINES -DUSE_XSHM"
fi

dnl
dnl TLS detection
dnl

AC_ARG_ENABLE([glx-tls],
    [AS_HELP_STRING([--enable-glx-tls],
        [enable TLS support in GLX @<:@default=disabled@:>@])],
    [GLX_USE_TLS="$enableval"],
    [GLX_USE_TLS=no])
AC_SUBST(GLX_TLS, ${GLX_USE_TLS})

AS_IF([test "x$GLX_USE_TLS" = xyes],
      [DEFINES="${DEFINES} -DGLX_USE_TLS -DPTHREADS"])

dnl
dnl More DRI setup
dnl
dnl Directory for DRI drivers
AC_ARG_WITH([dri-driverdir],
    [AS_HELP_STRING([--with-dri-driverdir=DIR],
        [directory for the DRI drivers @<:@${libdir}/dri@:>@])],
    [DRI_DRIVER_INSTALL_DIR="$withval"],
    [DRI_DRIVER_INSTALL_DIR='${libdir}/dri'])
AC_SUBST([DRI_DRIVER_INSTALL_DIR])
dnl Extra search path for DRI drivers
AC_ARG_WITH([dri-searchpath],
    [AS_HELP_STRING([--with-dri-searchpath=DIRS...],
        [semicolon delimited DRI driver search directories @<:@${libdir}/dri@:>@])],
    [DRI_DRIVER_SEARCH_DIR="$withval"],
    [DRI_DRIVER_SEARCH_DIR='${DRI_DRIVER_INSTALL_DIR}'])
AC_SUBST([DRI_DRIVER_SEARCH_DIR])
dnl Direct rendering or just indirect rendering
AC_ARG_ENABLE([driglx-direct],
    [AS_HELP_STRING([--disable-driglx-direct],
        [enable direct rendering in GLX and EGL for DRI @<:@default=enabled@:>@])],
    [driglx_direct="$enableval"],
    [driglx_direct="yes"])
dnl Which drivers to build - default is chosen by platform
AC_ARG_WITH([dri-drivers],
    [AS_HELP_STRING([--with-dri-drivers@<:@=DIRS...@:>@],
        [comma delimited DRI drivers list, e.g.
        "swrast,i965,radeon" @<:@default=auto@:>@])],
    [with_dri_drivers="$withval"],
    [with_dri_drivers=yes])
if test "x$with_dri_drivers" = x; then
    with_dri_drivers=no
fi

dnl If $with_dri_drivers is yes, directories will be added through
dnl platform checks
DRI_DIRS=""
case "$with_dri_drivers" in
no) ;;
yes)
    DRI_DIRS="yes"
    ;;
*)
    # verify the requested driver directories exist
    dri_drivers=`IFS=', '; echo $with_dri_drivers`
    for driver in $dri_drivers; do
        test -d "$srcdir/src/mesa/drivers/dri/$driver" || \
            AC_MSG_ERROR([DRI driver directory '$driver' doesn't exist])
    done
    DRI_DIRS="$dri_drivers"
    ;;
esac

dnl Set DRI_DIRS, DEFINES and LIB_DEPS
if test "$mesa_driver" = dri -o "$mesa_driver" = no; then
    # Platform specific settings and drivers to build
    case "$host_os" in
    linux*)
        DEFINES="$DEFINES -DUSE_EXTERNAL_DXTN_LIB=1 -DIN_DRI_DRIVER"
        if test "x$driglx_direct" = xyes; then
            DEFINES="$DEFINES -DGLX_DIRECT_RENDERING"
        fi
        DEFINES="$DEFINES -DGLX_INDIRECT_RENDERING -DHAVE_ALIAS"

        case "$host_cpu" in
        x86_64)
            # sis is missing because they have not be converted to use
            # the new interface.  i810 are missing because there is no
            # x86-64 system where they could *ever* be used.
            if test "x$DRI_DIRS" = "xyes"; then
                DRI_DIRS="i915 i965 mach64 mga r128 r200 r300 r600 radeon \
                    savage tdfx unichrome swrast"
            fi
            ;;
        powerpc*)
            # Build only the drivers for cards that exist on PowerPC.
            # At some point MGA will be added, but not yet.
            if test "x$DRI_DIRS" = "xyes"; then
                DRI_DIRS="mach64 r128 r200 r300 r600 radeon tdfx swrast"
            fi
            ;;
        sparc*)
            # Build only the drivers for cards that exist on sparc`
            if test "x$DRI_DIRS" = "xyes"; then
                DRI_DIRS="mach64 r128 r200 r300 r600 radeon swrast"
            fi
            ;;
        esac
        ;;
    freebsd* | dragonfly* | *netbsd*)
        DEFINES="$DEFINES -DPTHREADS -DUSE_EXTERNAL_DXTN_LIB=1"
        DEFINES="$DEFINES -DIN_DRI_DRIVER -DHAVE_ALIAS"
        DEFINES="$DEFINES -DGLX_INDIRECT_RENDERING"
        if test "x$driglx_direct" = xyes; then
            DEFINES="$DEFINES -DGLX_DIRECT_RENDERING"
        fi

        if test "x$DRI_DIRS" = "xyes"; then
            DRI_DIRS="i810 i915 i965 mach64 mga r128 r200 r300 r600 radeon tdfx \
                unichrome savage sis swrast"
        fi
        ;;
    gnu*)
        DEFINES="$DEFINES -DUSE_EXTERNAL_DXTN_LIB=1 -DIN_DRI_DRIVER"
        DEFINES="$DEFINES -DGLX_INDIRECT_RENDERING -DHAVE_ALIAS"
	;;
    solaris*)
        DEFINES="$DEFINES -DUSE_EXTERNAL_DXTN_LIB=1 -DIN_DRI_DRIVER"
        DEFINES="$DEFINES -DGLX_INDIRECT_RENDERING"
        if test "x$driglx_direct" = xyes; then
            DEFINES="$DEFINES -DGLX_DIRECT_RENDERING"
        fi
        ;;
    esac

    # default drivers
    if test "x$DRI_DIRS" = "xyes"; then
        DRI_DIRS="i810 i915 i965 mach64 mga r128 r200 r300 r600 radeon \
            savage sis tdfx unichrome swrast"
    fi

    DRI_DIRS=`echo "$DRI_DIRS" | $SED 's/  */ /g'`

    # Check for expat
    if test "$mesa_driver" = dri; then
        EXPAT_INCLUDES=""
        EXPAT_LIB=-lexpat
        AC_ARG_WITH([expat],
            [AS_HELP_STRING([--with-expat=DIR],
                [expat install directory])],[
            EXPAT_INCLUDES="-I$withval/include"
            CPPFLAGS="$CPPFLAGS $EXPAT_INCLUDES"
            LDFLAGS="$LDFLAGS -L$withval/$LIB_DIR"
            EXPAT_LIB="-L$withval/$LIB_DIR -lexpat"
            ])
        AC_CHECK_HEADER([expat.h],[],[AC_MSG_ERROR([Expat required for DRI.])])
        AC_CHECK_LIB([expat],[XML_ParserCreate],[],
            [AC_MSG_ERROR([Expat required for DRI.])])
    fi

    # put all the necessary libs together, including possibly libdricore
    DRI_LIB_DEPS="$DRI_LIB_DEPS $SELINUX_LIBS $LIBDRM_LIBS $EXPAT_LIB -lm -lpthread $DLOPEN_LIBS"
fi
AC_SUBST([DRI_DIRS])
AC_SUBST([EXPAT_INCLUDES])
AC_SUBST([DRI_LIB_DEPS])

case $DRI_DIRS in
*i915*|*i965*)
    PKG_CHECK_MODULES([INTEL], [libdrm_intel >= $LIBDRM_INTEL_REQUIRED])
    ;;
esac

case $DRI_DIRS in
*radeon*|*r200*|*r300*|*r600*)
    if test "x$HAVE_LIBDRM_RADEON" = xyes; then
	RADEON_CFLAGS="-DHAVE_LIBDRM_RADEON=1 $LIBDRM_RADEON_CFLAGS"
	RADEON_LDFLAGS=$LIBDRM_RADEON_LIBS
    fi
    ;;
esac
AC_SUBST([RADEON_CFLAGS])
AC_SUBST([RADEON_LDFLAGS])


dnl
dnl OSMesa configuration
dnl
if test "$mesa_driver" = xlib; then
    default_gl_osmesa=yes
else
    default_gl_osmesa=no
fi
AC_ARG_ENABLE([gl-osmesa],
    [AS_HELP_STRING([--enable-gl-osmesa],
        [enable OSMesa with libGL @<:@default=enabled for xlib driver@:>@])],
    [gl_osmesa="$enableval"],
    [gl_osmesa="$default_gl_osmesa"])
if test "x$gl_osmesa" = xyes; then
    if test "x$enable_opengl" = xno; then
        AC_MSG_ERROR([OpenGL is not available for OSMesa driver])
    fi
    if test "$mesa_driver" = osmesa; then
        AC_MSG_ERROR([libGL is not available for OSMesa driver])
    else
        DRIVER_DIRS="$DRIVER_DIRS osmesa"
    fi
fi

dnl Configure the channel bits for OSMesa (libOSMesa, libOSMesa16, ...)
AC_ARG_WITH([osmesa-bits],
    [AS_HELP_STRING([--with-osmesa-bits=BITS],
        [OSMesa channel bits and library name: 8, 16, 32 @<:@default=8@:>@])],
    [osmesa_bits="$withval"],
    [osmesa_bits=8])
if test "$mesa_driver" != osmesa && test "x$osmesa_bits" != x8; then
    AC_MSG_WARN([Ignoring OSMesa channel bits for non-OSMesa driver])
    osmesa_bits=8
fi
case "x$osmesa_bits" in
x8)
    OSMESA_LIB=OSMesa
    ;;
x16|x32)
    OSMESA_LIB="OSMesa$osmesa_bits"
    DEFINES="$DEFINES -DCHAN_BITS=$osmesa_bits -DDEFAULT_SOFTWARE_DEPTH_BITS=31"
    ;;
*)
    AC_MSG_ERROR([OSMesa bits '$osmesa_bits' is not a valid option])
    ;;
esac
AC_SUBST([OSMESA_LIB])

case "$DRIVER_DIRS" in
*osmesa*)
    # only link libraries with osmesa if shared
    if test "$enable_static" = no; then
        OSMESA_LIB_DEPS="-lm -lpthread $SELINUX_LIBS $DLOPEN_LIBS"
    else
        OSMESA_LIB_DEPS=""
    fi
    OSMESA_MESA_DEPS=""
    OSMESA_PC_LIB_PRIV="-lm -lpthread $SELINUX_LIBS $DLOPEN_LIBS"
    ;;
esac
AC_SUBST([OSMESA_LIB_DEPS])
AC_SUBST([OSMESA_MESA_DEPS])
AC_SUBST([OSMESA_PC_REQ])
AC_SUBST([OSMESA_PC_LIB_PRIV])

dnl
dnl EGL configuration
dnl
AC_ARG_ENABLE([egl],
    [AS_HELP_STRING([--disable-egl],
        [disable EGL library @<:@default=enabled@:>@])],
    [enable_egl="$enableval"],
    [enable_egl=yes])
if test "x$enable_egl" = xno; then
    if test "x$mesa_driver" = xno; then
        AC_MSG_ERROR([cannot disable EGL when there is no mesa driver])
    fi
    if test "x$enable_openvg" = xyes; then
        AC_MSG_ERROR([cannot enable OpenVG without EGL])
    fi
fi
if test "x$enable_egl" = xyes; then
    SRC_DIRS="$SRC_DIRS egl"
    EGL_LIB_DEPS="$DLOPEN_LIBS -lpthread"
    EGL_DRIVERS_DIRS=""
    if test "$enable_static" != yes; then
        # build egl_glx when libGL is built
        if test "$mesa_driver" = xlib -o "$mesa_driver" = dri; then
            EGL_DRIVERS_DIRS="glx"
        fi

        if test "$mesa_driver" = dri; then
            # build egl_dri2 when xcb-dri2 is available
            PKG_CHECK_MODULES([XCB_DRI2], [x11-xcb xcb-dri2 xcb-xfixes],
            		  [have_xcb_dri2=yes],[have_xcb_dri2=no])
            PKG_CHECK_MODULES([LIBUDEV], [libudev > 150],
            		  [have_libudev=yes],[have_libudev=no])
            
            if test "$have_xcb_dri2" = yes; then
                EGL_DRIVER_DRI2=dri2
                DEFINES="$DEFINES -DHAVE_XCB_DRI2"
                if test "$have_libudev" = yes; then
                    DEFINES="$DEFINES -DHAVE_LIBUDEV"
                fi
                # workaround a bug in xcb-dri2 generated by xcb-proto 1.6
                AC_CHECK_LIB(xcb-dri2, xcb_dri2_connect_alignment_pad, [],
                          [DEFINES="$DEFINES -DXCB_DRI2_CONNECT_DEVICE_NAME_BROKEN"])
            fi
	fi

        EGL_DRIVERS_DIRS="$EGL_DRIVERS_DIRS $EGL_DRIVER_DRI2"
    fi
fi
AC_SUBST([EGL_LIB_DEPS])
AC_SUBST([EGL_DRIVERS_DIRS])

dnl
dnl GLU configuration
dnl
AC_ARG_ENABLE([glu],
    [AS_HELP_STRING([--disable-glu],
        [enable OpenGL Utility library @<:@default=enabled@:>@])],
    [enable_glu="$enableval"],
    [enable_glu=yes])

if test "x$enable_glu" = xyes -a "x$mesa_driver" = xno; then
    AC_MSG_NOTICE([Disabling GLU since there is no OpenGL driver])
    enable_glu=no
fi

if test "x$enable_glu" = xyes; then
    SRC_DIRS="$SRC_DIRS glu"

    case "$mesa_driver" in
    osmesa)
        # Link libGLU to libOSMesa instead of libGL
        GLU_LIB_DEPS=""
        GLU_PC_REQ="osmesa"
        if test "$enable_static" = no; then
            GLU_MESA_DEPS='-l$(OSMESA_LIB)'
        else
            GLU_MESA_DEPS=""
        fi
        ;;
    *)
        # If static, empty GLU_LIB_DEPS and add libs for programs to link
        GLU_PC_REQ="gl"
        GLU_PC_LIB_PRIV="-lm"
        if test "$enable_static" = no; then
            GLU_LIB_DEPS="-lm"
            GLU_MESA_DEPS='-l$(GL_LIB)'
        else
            GLU_LIB_DEPS=""
            GLU_MESA_DEPS=""
            APP_LIB_DEPS="$APP_LIB_DEPS -lstdc++"
        fi
        ;;
    esac
fi
if test "$enable_static" = no; then
    GLU_LIB_DEPS="$GLU_LIB_DEPS $OS_CPLUSPLUS_LIBS"
fi
GLU_PC_LIB_PRIV="$GLU_PC_LIB_PRIV $OS_CPLUSPLUS_LIBS"
AC_SUBST([GLU_LIB_DEPS])
AC_SUBST([GLU_MESA_DEPS])
AC_SUBST([GLU_PC_REQ])
AC_SUBST([GLU_PC_REQ_PRIV])
AC_SUBST([GLU_PC_LIB_PRIV])
AC_SUBST([GLU_PC_CFLAGS])

dnl
dnl GLw configuration
dnl
AC_ARG_ENABLE([glw],
    [AS_HELP_STRING([--disable-glw],
        [enable Xt/Motif widget library @<:@default=enabled@:>@])],
    [enable_glw="$enableval"],
    [enable_glw=yes])
dnl Don't build GLw on osmesa
if test "x$enable_glw" = xyes; then
    case "$mesa_driver" in
    osmesa|no)
        AC_MSG_NOTICE([Disabling GLw since there is no OpenGL driver])
        enable_glw=no
        ;;
    esac
fi
AC_ARG_ENABLE([motif],
    [AS_HELP_STRING([--enable-motif],
        [use Motif widgets in GLw @<:@default=disabled@:>@])],
    [enable_motif="$enableval"],
    [enable_motif=no])

if test "x$enable_glw" = xyes; then
    SRC_DIRS="$SRC_DIRS glw"
    if test "$x11_pkgconfig" = yes; then
        PKG_CHECK_MODULES([GLW],[x11 xt])
        GLW_PC_REQ_PRIV="x11 xt"
        GLW_LIB_DEPS="$GLW_LIBS"
    else
        # should check these...
        GLW_LIB_DEPS="$X_LIBS -lXt -lX11"
        GLW_PC_LIB_PRIV="$GLW_LIB_DEPS"
        GLW_PC_CFLAGS="$X11_INCLUDES"
    fi

    GLW_SOURCES="GLwDrawA.c"
    MOTIF_CFLAGS=
    if test "x$enable_motif" = xyes; then
        GLW_SOURCES="$GLW_SOURCES GLwMDrawA.c"
        AC_PATH_PROG([MOTIF_CONFIG], [motif-config], [no])
        if test "x$MOTIF_CONFIG" != xno; then
            MOTIF_CFLAGS=`$MOTIF_CONFIG --cflags`
            MOTIF_LIBS=`$MOTIF_CONFIG --libs`
        else
            AC_CHECK_HEADER([Xm/PrimitiveP.h], [],
                [AC_MSG_ERROR([Can't locate Motif headers])])
            AC_CHECK_LIB([Xm], [XmGetPixmap], [MOTIF_LIBS="-lXm"],
                [AC_MSG_ERROR([Can't locate Motif Xm library])])
        fi
        # MOTIF_LIBS is prepended to GLW_LIB_DEPS since Xm needs Xt/X11
        GLW_LIB_DEPS="$MOTIF_LIBS $GLW_LIB_DEPS"
        GLW_PC_LIB_PRIV="$MOTIF_LIBS $GLW_PC_LIB_PRIV"
        GLW_PC_CFLAGS="$MOTIF_CFLAGS $GLW_PC_CFLAGS"
    fi

    # If static, empty GLW_LIB_DEPS and add libs for programs to link
    GLW_PC_LIB_PRIV="$GLW_PC_LIB_PRIV"
    if test "$enable_static" = no; then
        GLW_MESA_DEPS='-l$(GL_LIB)'
        GLW_LIB_DEPS="$GLW_LIB_DEPS"
    else
        APP_LIB_DEPS="$APP_LIB_DEPS $GLW_LIB_DEPS"
        GLW_LIB_DEPS=""
        GLW_MESA_DEPS=""
    fi
fi
AC_SUBST([GLW_LIB_DEPS])
AC_SUBST([GLW_MESA_DEPS])
AC_SUBST([GLW_SOURCES])
AC_SUBST([MOTIF_CFLAGS])
AC_SUBST([GLW_PC_REQ_PRIV])
AC_SUBST([GLW_PC_LIB_PRIV])
AC_SUBST([GLW_PC_CFLAGS])

dnl
dnl GLUT configuration
dnl
if test -f "$srcdir/include/GL/glut.h"; then
    default_glut=yes
else
    default_glut=no
fi
AC_ARG_ENABLE([glut],
    [AS_HELP_STRING([--disable-glut],
        [enable GLUT library @<:@default=enabled if source available@:>@])],
    [enable_glut="$enableval"],
    [enable_glut="$default_glut"])

dnl Don't build glut on osmesa
if test "x$enable_glut" = xyes; then
    case "$mesa_driver" in
    osmesa|no)
        AC_MSG_NOTICE([Disabling glut since there is no OpenGL driver])
        enable_glut=no
        ;;
    esac
fi
dnl Can't build glut if GLU not available
if test "x$enable_glu$enable_glut" = xnoyes; then
    AC_MSG_WARN([Disabling glut since GLU is disabled])
    enable_glut=no
fi

if test "x$enable_glut" = xyes; then
    SRC_DIRS="$SRC_DIRS glut/glx"
    if test "$x11_pkgconfig" = yes; then
        PKG_CHECK_MODULES([GLUT],[x11 xmu xi])
        GLUT_PC_REQ_PRIV="x11 xmu xi"
        GLUT_LIB_DEPS="$GLUT_LIBS"
    else
        # should check these...
        GLUT_LIB_DEPS="$X_LIBS -lX11 -lXmu -lXi"
        GLUT_PC_LIB_PRIV="$GLUT_LIB_DEPS"
        GLUT_PC_CFLAGS="$X11_INCLUDES"
    fi
    if test "x$GCC" = xyes; then
        GLUT_CFLAGS="$GLUT_CFLAGS -fexceptions"
    fi
    GLUT_LIB_DEPS="$GLUT_LIB_DEPS -lm"
    GLUT_PC_LIB_PRIV="$GLUT_PC_LIB_PRIV -lm"

    # If static, empty GLUT_LIB_DEPS and add libs for programs to link
    if test "$enable_static" = no; then
        GLUT_MESA_DEPS='-l$(GLU_LIB) -l$(GL_LIB)'
    else
        APP_LIB_DEPS="$APP_LIB_DEPS $GLUT_LIB_DEPS"
        GLUT_LIB_DEPS=""
        GLUT_MESA_DEPS=""
    fi
fi
AC_SUBST([GLUT_LIB_DEPS])
AC_SUBST([GLUT_MESA_DEPS])
AC_SUBST([GLUT_CFLAGS])
AC_SUBST([GLUT_PC_REQ_PRIV])
AC_SUBST([GLUT_PC_LIB_PRIV])
AC_SUBST([GLUT_PC_CFLAGS])

dnl
dnl Program library dependencies
dnl    Only libm is added here if necessary as the libraries should
dnl    be pulled in by the linker
dnl
if test "x$APP_LIB_DEPS" = x; then
    case "$host_os" in
    solaris*)
        APP_LIB_DEPS="-lX11 -lsocket -lnsl -lm"
        ;;
    cygwin*)
        APP_LIB_DEPS="-lX11"
        ;;
    *)
        APP_LIB_DEPS="-lm"
        ;;
    esac
fi
AC_SUBST([APP_LIB_DEPS])
AC_SUBST([PROGRAM_DIRS])

dnl
dnl Gallium configuration
dnl
AC_ARG_ENABLE([gallium],
    [AS_HELP_STRING([--disable-gallium],
        [build gallium @<:@default=enabled@:>@])],
    [enable_gallium="$enableval"],
    [enable_gallium=yes])
if test "x$enable_gallium" = xno -a "x$enable_openvg" = xyes; then
    AC_MSG_ERROR([cannot enable OpenVG without Gallium])
fi
if test "x$enable_gallium" = xyes; then
    SRC_DIRS="$SRC_DIRS gallium gallium/winsys gallium/targets"
    AC_PATH_PROG([LLVM_CONFIG], [llvm-config], [no])
fi

AC_SUBST([LLVM_CFLAGS])
AC_SUBST([LLVM_LIBS])
AC_SUBST([LLVM_LDFLAGS])
AC_SUBST([LLVM_VERSION])

dnl
dnl Gallium state trackers configuration
dnl

AC_ARG_ENABLE([gallium-egl],
    [AS_HELP_STRING([--enable-gallium-egl],
        [enable gallium EGL state tracker @<:@default=auto@:>@])],
    [enable_gallium_egl="$enableval"],
    [enable_gallium_egl=auto])
if test "x$enable_gallium_egl" = xauto; then
    case "$mesa_driver" in
    dri|no)
        enable_gallium_egl=$enable_egl
        ;;
    *)
        enable_gallium_egl=$enable_openvg
        ;;
    esac
fi
case "x$enable_egl$enable_gallium_egl" in
xnoyes)
    AC_MSG_ERROR([cannot build Gallium EGL state tracker without EGL])
esac

AC_ARG_WITH([state-trackers],
    [AS_HELP_STRING([--with-state-trackers@<:@=DIRS...@:>@],
        [comma delimited state_trackers list, e.g.
        "egl,glx" @<:@default=auto@:>@])],
    [with_state_trackers="$withval"],
    [with_state_trackers=yes])

case "$with_state_trackers" in
no)
    GALLIUM_STATE_TRACKERS_DIRS=""
    ;;
yes)
    # look at what else is built
    case "$mesa_driver" in
    xlib)
        GALLIUM_STATE_TRACKERS_DIRS=glx
        ;;
    dri)
        GALLIUM_STATE_TRACKERS_DIRS="dri"
        HAVE_ST_DRI="yes"
        # Have only tested st/xorg on 1.6.0 servers
        PKG_CHECK_MODULES(XORG, [xorg-server >= 1.6.0 libdrm >= $LIBDRM_XORG_REQUIRED libkms >= $LIBKMS_XORG_REQUIRED],
            HAVE_ST_XORG="yes"; GALLIUM_STATE_TRACKERS_DIRS="$GALLIUM_STATE_TRACKERS_DIRS xorg",
            HAVE_ST_XORG="no")
        ;;
    esac

    if test "x$enable_egl" = xyes; then
        if test "$enable_openvg" = yes; then
            GALLIUM_STATE_TRACKERS_DIRS="$GALLIUM_STATE_TRACKERS_DIRS vega"
            st_egl="yes"
        fi

        if test "$enable_gallium_egl" = yes; then
            GALLIUM_STATE_TRACKERS_DIRS="$GALLIUM_STATE_TRACKERS_DIRS egl"
            HAVE_ST_EGL="yes"
        fi
    fi
    ;;
*)
    # verify the requested state tracker exist
    state_trackers=""
    _state_trackers=`IFS=', '; echo $with_state_trackers`
    for tracker in $_state_trackers; do
        case "$tracker" in
        dri)
            if test "x$mesa_driver" != xdri; then
                AC_MSG_ERROR([cannot build dri state tracker without mesa driver set to dri])
            fi
            HAVE_ST_DRI="yes"
            ;;
        egl)
            if test "x$enable_egl" != xyes; then
                AC_MSG_ERROR([cannot build egl state tracker without EGL library])
            fi
            HAVE_ST_EGL="yes"
            ;;
        xorg)
            PKG_CHECK_MODULES([XORG], [xorg-server >= 1.6.0])
            PKG_CHECK_MODULES([LIBDRM_XORG], [libdrm >= $LIBDRM_XORG_REQUIRED])
            PKG_CHECK_MODULES([LIBKMS_XORG], [libkms >= $LIBKMS_XORG_REQUIRED])
            HAVE_ST_XORG="yes"
            ;;
        vega)
            if test "x$enable_openvg" != xyes; then
                AC_MSG_ERROR([cannot build vega state tracker without --enable-openvg])
            fi
            have_st_vega="yes"
            ;;
        esac

	if test -n "$tracker"; then
            test -d "$srcdir/src/gallium/state_trackers/$tracker" || \
                AC_MSG_ERROR([state tracker '$tracker' doesn't exist])
            if test -n "$state_trackers"; then
                state_trackers="$state_trackers $tracker"
            else
                state_trackers="$tracker"
            fi
        fi
    done
    GALLIUM_STATE_TRACKERS_DIRS="$state_trackers"

    # append --enable-openvg/--enable-gallium-egl to --with-state-trackers
    if test "x$have_st_vega" != xyes -a "x$enable_openvg" = xyes; then
        AC_MSG_ERROR([--with-state-trackers specified but vega is missing])
    fi
    if test "x$HAVE_ST_EGL" != xyes -a "x$enable_gallium_egl" = xyes; then
        AC_MSG_ERROR([--with-state-trackers specified but egl is missing])
    fi
    ;;
esac


EGL_CLIENT_APIS=""
VG_LIB_DEPS=""

case "x$enable_opengl$enable_gles1$enable_gles2" in
x*yes*)
    EGL_CLIENT_APIS="$EGL_CLIENT_APIS "'$(GL_LIB)'
    ;;
esac
if test "x$enable_openvg" = xyes; then
    EGL_CLIENT_APIS="$EGL_CLIENT_APIS "'$(VG_LIB)'
    VG_LIB_DEPS="$VG_LIB_DEPS -lpthread"
fi

AC_SUBST([VG_LIB_DEPS])
AC_SUBST([EGL_CLIENT_APIS])

if test "x$HAVE_ST_EGL" = xyes; then
	GALLIUM_TARGET_DIRS="$GALLIUM_TARGET_DIRS egl"
fi

if test "x$HAVE_ST_XORG" = xyes; then
    PKG_CHECK_MODULES(XEXT, [xextproto >= 7.0.99.1],
        HAVE_XEXTPROTO_71="yes"; DEFINES="$DEFINES -DHAVE_XEXTPROTO_71",
        HAVE_XEXTPROTO_71="no")
fi

AC_ARG_WITH([egl-platforms],
    [AS_HELP_STRING([--with-egl-platforms@<:@=DIRS...@:>@],
        [comma delimited native platforms libEGL supports, e.g.
        "x11,drm" @<:@default=auto@:>@])],
    [with_egl_platforms="$withval"],
    [with_egl_platforms=yes])
AC_ARG_WITH([egl-displays],
    [AS_HELP_STRING([--with-egl-displays@<:@=DIRS...@:>@],
        [DEPRECATED.  Use --with-egl-platforms instead])],
    [with_egl_platforms="$withval"])

EGL_PLATFORMS=""
WAYLAND_EGL_LIB_DEPS=""

case "$with_egl_platforms" in
yes)
    if test "x$enable_egl" = xyes && test "x$mesa_driver" != xosmesa; then
        EGL_PLATFORMS="x11"
        if test "$mesa_driver" = dri; then
            EGL_PLATFORMS="$EGL_PLATFORMS drm"
        fi
    fi
    ;;
*)
    if test "x$enable_egl" != xyes; then
        AC_MSG_ERROR([cannot build egl state tracker without EGL library])
    fi
    # verify the requested driver directories exist
    egl_platforms=`IFS=', '; echo $with_egl_platforms`
    for plat in $egl_platforms; do
        test -d "$srcdir/src/gallium/state_trackers/egl/$plat" || \
            AC_MSG_ERROR([EGL platform '$plat' doesn't exist])
        if test "$plat" = "fbdev"; then
                GALLIUM_WINSYS_DIRS="$GALLIUM_WINSYS_DIRS sw/fbdev"
        fi
	if test "$plat" = "wayland"; then
		PKG_CHECK_MODULES([WAYLAND], [wayland-client wayland-server],, \
				  [AC_MSG_ERROR([cannot find libwayland-client])])
		WAYLAND_EGL_LIB_DEPS="$WAYLAND_LIBS $LIBDRM_LIBS"
	fi
    done
    EGL_PLATFORMS="$egl_platforms"
    ;;
esac
AC_SUBST([EGL_PLATFORMS])

AC_SUBST([WAYLAND_EGL_LIB_DEPS])
WAYLAND_EGL_PC_REQ_PRIV="wayland-client libdrm"
WAYLAND_EGL_PC_LIB_PRIV=
WAYLAND_EGL_PC_CFLAGS=

AC_SUBST([WAYLAND_EGL_PC_REQ_PRIV])
AC_SUBST([WAYLAND_EGL_PC_LIB_PRIV])
AC_SUBST([WAYLAND_EGL_PC_CFLAGS])


AC_ARG_WITH([egl-driver-dir],
    [AS_HELP_STRING([--with-egl-driver-dir=DIR],
                    [directory for EGL drivers [[default=${libdir}/egl]]])],
    [EGL_DRIVER_INSTALL_DIR="$withval"],
    [EGL_DRIVER_INSTALL_DIR='${libdir}/egl'])
AC_SUBST([EGL_DRIVER_INSTALL_DIR])

AC_ARG_WITH([xorg-driver-dir],
    [AS_HELP_STRING([--with-xorg-driver-dir=DIR],
                    [Default xorg driver directory[[default=${libdir}/xorg/modules/drivers]]])],
    [XORG_DRIVER_INSTALL_DIR="$withval"],
    [XORG_DRIVER_INSTALL_DIR="${libdir}/xorg/modules/drivers"])
AC_SUBST([XORG_DRIVER_INSTALL_DIR])

AC_ARG_WITH([max-width],
    [AS_HELP_STRING([--with-max-width=N],
                    [Maximum framebuffer width (4096)])],
    [DEFINES="${DEFINES} -DMAX_WIDTH=${withval}";
     AS_IF([test "${withval}" -gt "4096"],
           [AC_MSG_WARN([Large framebuffer: see s_tritemp.h comments.])])]
)
AC_ARG_WITH([max-height],
    [AS_HELP_STRING([--with-max-height=N],
                    [Maximum framebuffer height (4096)])],
    [DEFINES="${DEFINES} -DMAX_HEIGHT=${withval}";
     AS_IF([test "${withval}" -gt "4096"],
           [AC_MSG_WARN([Large framebuffer: see s_tritemp.h comments.])])]
)

dnl
dnl Gallium LLVM
dnl
AC_ARG_ENABLE([gallium-llvm],
    [AS_HELP_STRING([--enable-gallium-llvm],
        [build gallium LLVM support @<:@default=disabled@:>@])],
    [enable_gallium_llvm="$enableval"],
    [enable_gallium_llvm=auto])
if test "x$enable_gallium_llvm" = xyes; then
    if test "x$LLVM_CONFIG" != xno; then
	LLVM_VERSION=`$LLVM_CONFIG --version`
	LLVM_CFLAGS=`$LLVM_CONFIG --cppflags`
	LLVM_LIBS="`$LLVM_CONFIG --libs` -lstdc++"

	LLVM_LDFLAGS=`$LLVM_CONFIG --ldflags`
	GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS llvmpipe"
	DEFINES="$DEFINES -DGALLIUM_LLVMPIPE -D__STDC_CONSTANT_MACROS"
	MESA_LLVM=1
    else
	MESA_LLVM=0
    fi
else
    MESA_LLVM=0
fi

dnl
dnl Gallium helper functions
dnl
gallium_check_st() {
    if test "x$HAVE_ST_DRI" = xyes || test "x$HAVE_ST_XORG" = xyes; then
         GALLIUM_WINSYS_DIRS="$GALLIUM_WINSYS_DIRS $1"
    fi
    if test "x$HAVE_ST_DRI" = xyes && test "x$2" != x; then
         GALLIUM_TARGET_DIRS="$GALLIUM_TARGET_DIRS $2"
    fi
    if test "x$HAVE_ST_XORG" = xyes && test "x$3" != x; then
         GALLIUM_TARGET_DIRS="$GALLIUM_TARGET_DIRS $3"
    fi
}


dnl
dnl Gallium SVGA configuration
dnl
AC_ARG_ENABLE([gallium-svga],
    [AS_HELP_STRING([--enable-gallium-svga],
        [build gallium SVGA @<:@default=disabled@:>@])],
    [enable_gallium_svga="$enableval"],
    [enable_gallium_svga=auto])
if test "x$enable_gallium_svga" = xyes; then
    GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS svga"
    gallium_check_st "svga/drm" "dri-vmwgfx" "xorg-vmwgfx"
elif test "x$enable_gallium_svga" = xauto; then
    GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS svga"
fi

dnl
dnl Gallium i915 configuration
dnl
AC_ARG_ENABLE([gallium-i915],
    [AS_HELP_STRING([--enable-gallium-i915],
        [build gallium i915 @<:@default=disabled@:>@])],
    [enable_gallium_i915="$enableval"],
    [enable_gallium_i915=auto])
if test "x$enable_gallium_i915" = xyes; then
    GALLIUM_WINSYS_DIRS="$GALLIUM_WINSYS_DIRS i915/sw"
    GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS i915"
    gallium_check_st "i915/drm" "dri-i915" "xorg-i915"
elif test "x$enable_gallium_i915" = xauto; then
    GALLIUM_WINSYS_DIRS="$GALLIUM_WINSYS_DIRS i915/sw"
    GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS i915"
fi

dnl
dnl Gallium i965 configuration
dnl
AC_ARG_ENABLE([gallium-i965],
    [AS_HELP_STRING([--enable-gallium-i965],
        [build gallium i965 @<:@default=disabled@:>@])],
    [enable_gallium_i965="$enableval"],
    [enable_gallium_i965=auto])
if test "x$enable_gallium_i965" = xyes; then
    GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS i965"
    gallium_check_st "i965/drm" "dri-i965" "xorg-i965"
elif test "x$enable_gallium_i965" = xauto; then
    GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS i965"
fi

dnl
dnl Gallium Radeon r300g configuration
dnl
AC_ARG_ENABLE([gallium-radeon],
    [AS_HELP_STRING([--enable-gallium-radeon],
        [build gallium radeon @<:@default=disabled@:>@])],
    [enable_gallium_radeon="$enableval"],
    [enable_gallium_radeon=auto])
if test "x$enable_gallium_radeon" = xauto; then
    GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS r300"
    gallium_check_st "radeon/drm" "dri-r300"
fi
if test "x$enable_gallium_radeon" = xyes; then
    GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS r300"
    gallium_check_st "radeon/drm" "dri-r300" "xorg-radeon"
fi

dnl
dnl Gallium Radeon r600g configuration
dnl
AC_ARG_ENABLE([gallium-r600],
    [AS_HELP_STRING([--enable-gallium-r600],
        [build gallium radeon @<:@default=disabled@:>@])],
    [enable_gallium_r600="$enableval"],
    [enable_gallium_r600=auto])
if test "x$enable_gallium_r600" = xyes; then
    GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS r600"
    gallium_check_st "r600/drm" "dri-r600"
fi

dnl
dnl Gallium Nouveau configuration
dnl
AC_ARG_ENABLE([gallium-nouveau],
    [AS_HELP_STRING([--enable-gallium-nouveau],
        [build gallium nouveau @<:@default=disabled@:>@])],
    [enable_gallium_nouveau="$enableval"],
    [enable_gallium_nouveau=no])
if test "x$enable_gallium_nouveau" = xyes; then
    GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS nouveau nvfx nv50 nvc0"
    gallium_check_st "nouveau/drm" "dri-nouveau" "xorg-nouveau"
fi

dnl
dnl Gallium swrast configuration
dnl
AC_ARG_ENABLE([gallium-swrast],
    [AS_HELP_STRING([--enable-gallium-swrast],
        [build gallium swrast @<:@default=auto@:>@])],
    [enable_gallium_swrast="$enableval"],
    [enable_gallium_swrast=auto])
if test "x$enable_gallium_swrast" = xyes || test "x$enable_gallium_swrast" = xauto; then
    if test "x$HAVE_ST_DRI" = xyes; then
        GALLIUM_TARGET_DIRS="$GALLIUM_TARGET_DIRS dri-swrast"
    fi
fi

dnl prepend CORE_DIRS to SRC_DIRS
SRC_DIRS="$CORE_DIRS $SRC_DIRS"

dnl Restore LDFLAGS and CPPFLAGS
LDFLAGS="$_SAVE_LDFLAGS"
CPPFLAGS="$_SAVE_CPPFLAGS"

dnl Substitute the config
AC_CONFIG_FILES([configs/autoconf])

dnl Replace the configs/current symlink
AC_CONFIG_COMMANDS([configs],[
if test -f configs/current || test -L configs/current; then
    rm -f configs/current
fi
ln -s autoconf configs/current
])

AC_OUTPUT

dnl
dnl Output some configuration info for the user
dnl
echo ""
echo "        prefix:          $prefix"
echo "        exec_prefix:     $exec_prefix"
echo "        libdir:          $libdir"
echo "        includedir:      $includedir"

dnl API info
echo ""
echo "        OpenGL:          $enable_opengl (ES1: $enable_gles1 ES2: $enable_gles2)"
echo "        OpenVG:          $enable_openvg"

dnl Driver info
echo ""
echo "        Driver:          $mesa_driver"
if test "$mesa_driver" != no; then
    if echo "$DRIVER_DIRS" | grep 'osmesa' >/dev/null 2>&1; then
        echo "        OSMesa:          lib$OSMESA_LIB"
    else
        echo "        OSMesa:          no"
    fi
    if test "$mesa_driver" = dri; then
        # cleanup the drivers var
        dri_dirs=`echo $DRI_DIRS | $SED 's/^ *//;s/  */ /;s/ *$//'`
        if test "x$DRI_DIRS" = x; then
            echo "        DRI drivers:     no"
        else
            echo "        DRI drivers:     $dri_dirs"
        fi
        echo "        DRI driver dir:  $DRI_DRIVER_INSTALL_DIR"
        echo "        Use XCB:         $enable_xcb"
        echo "        Shared dricore:  $enable_dricore"
    fi
fi
echo ""
echo "        GLU:             $enable_glu"
echo "        GLw:             $enable_glw (Motif: $enable_motif)"
echo "        glut:            $enable_glut"

dnl EGL
echo ""
echo "        EGL:             $enable_egl"
if test "$enable_egl" = yes; then
    echo "        EGL platforms:   $EGL_PLATFORMS"

    egl_drivers=""
    for d in $EGL_DRIVERS_DIRS; do
        egl_drivers="$egl_drivers builtin:egl_$d"
    done

    if test "$enable_gallium" = yes -a "$HAVE_ST_EGL" = yes; then
        echo "        EGL drivers:    ${egl_drivers} egl_gallium"
        echo "        EGL Gallium STs:$EGL_CLIENT_APIS"
    else
        echo "        EGL drivers:    $egl_drivers"
    fi
fi

echo ""
if test "x$MESA_LLVM" = x1; then
    echo "        llvm:            yes"
    echo "        llvm-config:     $LLVM_CONFIG"
    echo "        llvm-version:    $LLVM_VERSION"
else
    echo "        llvm:            no"
fi

echo ""
if echo "$SRC_DIRS" | grep 'gallium' >/dev/null 2>&1; then
    echo "        Gallium:         yes"
    echo "        Gallium dirs:    $GALLIUM_DIRS"
    echo "        Target dirs:     $GALLIUM_TARGET_DIRS"
    echo "        Winsys dirs:     $GALLIUM_WINSYS_DIRS"
    echo "        Driver dirs:     $GALLIUM_DRIVERS_DIRS"
    echo "        Trackers dirs:   $GALLIUM_STATE_TRACKERS_DIRS"
else
    echo "        Gallium:         no"
fi

dnl Libraries
echo ""
echo "        Shared libs:     $enable_shared"
echo "        Static libs:     $enable_static"

dnl Compiler options
# cleanup the CFLAGS/CXXFLAGS/DEFINES vars
cflags=`echo $CFLAGS $OPT_FLAGS $PIC_FLAGS $ARCH_FLAGS | \
    $SED 's/^ *//;s/  */ /;s/ *$//'`
cxxflags=`echo $CXXFLAGS $OPT_FLAGS $PIC_FLAGS $ARCH_FLAGS | \
    $SED 's/^ *//;s/  */ /;s/ *$//'`
defines=`echo $DEFINES $ASM_FLAGS | $SED 's/^ *//;s/  */ /;s/ *$//'`
echo ""
echo "        CFLAGS:          $cflags"
echo "        CXXFLAGS:        $cxxflags"
echo "        Macros:          $defines"
echo ""
echo "        PYTHON2:         $PYTHON2"

echo ""
echo "        Run '${MAKE-make}' to build Mesa"
echo ""