language: c sudo: false cache: directories: - $HOME/.ccache addons: apt: packages: - libdrm-dev - libudev-dev - x11proto-xf86vidmode-dev - libexpat1-dev - libxcb-dri2-0-dev - libx11-xcb-dev - llvm-3.4-dev - scons env: global: - XORG_RELEASES=http://xorg.freedesktop.org/releases/individual - XCB_RELEASES=http://xcb.freedesktop.org/dist - XORGMACROS_VERSION=util-macros-1.19.0 - GLPROTO_VERSION=glproto-1.4.17 - DRI2PROTO_VERSION=dri2proto-2.8 - DRI3PROTO_VERSION=dri3proto-1.0 - PRESENTPROTO_VERSION=presentproto-1.0 - LIBPCIACCESS_VERSION=libpciaccess-0.13.4 - LIBDRM_VERSION=libdrm-2.4.65 - XCBPROTO_VERSION=xcb-proto-1.11 - LIBXCB_VERSION=libxcb-1.11 - LIBXSHMFENCE_VERSION=libxshmfence-1.2 - PKG_CONFIG_PATH=$HOME/prefix/lib/pkgconfig matrix: - BUILD=make - BUILD=scons install: - export PATH="/usr/lib/ccache:$PATH" - pip install --user mako # Install dependencies where we require specific versions (or where # disallowed by Travis CI's package whitelisting). - wget $XORG_RELEASES/util/$XORGMACROS_VERSION.tar.bz2 - tar -jxvf $XORGMACROS_VERSION.tar.bz2 - (cd $XORGMACROS_VERSION && ./configure --prefix=$HOME/prefix && make install) - wget $XORG_RELEASES/proto/$GLPROTO_VERSION.tar.bz2 - tar -jxvf $GLPROTO_VERSION.tar.bz2 - (cd $GLPROTO_VERSION && ./configure --prefix=$HOME/prefix && make install) - wget $XORG_RELEASES/proto/$DRI2PROTO_VERSION.tar.bz2 - tar -jxvf $DRI2PROTO_VERSION.tar.bz2 - (cd $DRI2PROTO_VERSION && ./configure --prefix=$HOME/prefix && make install) - wget $XORG_RELEASES/proto/$DRI3PROTO_VERSION.tar.bz2 - tar -jxvf $DRI3PROTO_VERSION.tar.bz2 - (cd $DRI3PROTO_VERSION && ./configure --prefix=$HOME/prefix && make install) - wget $XORG_RELEASES/proto/$PRESENTPROTO_VERSION.tar.bz2 - tar -jxvf $PRESENTPROTO_VERSION.tar.bz2 - (cd $PRESENTPROTO_VERSION && ./configure --prefix=$HOME/prefix && make install) - wget $XCB_RELEASES/$XCBPROTO_VERSION.tar.bz2 - tar -jxvf $XCBPROTO_VERSION.tar.bz2 - (cd $XCBPROTO_VERSION && ./configure --prefix=$HOME/prefix && make install) - wget $XCB_RELEASES/$LIBXCB_VERSION.tar.bz2 - tar -jxvf $LIBXCB_VERSION.tar.bz2 - (cd $LIBXCB_VERSION && ./configure --prefix=$HOME/prefix && make install) - wget $XORG_RELEASES/lib/$LIBPCIACCESS_VERSION.tar.bz2 - tar -jxvf $LIBPCIACCESS_VERSION.tar.bz2 - (cd $LIBPCIACCESS_VERSION && ./configure --prefix=$HOME/prefix && make install) - wget http://dri.freedesktop.org/libdrm/$LIBDRM_VERSION.tar.bz2 - tar -jxvf $LIBDRM_VERSION.tar.bz2 - (cd $LIBDRM_VERSION && ./configure --prefix=$HOME/prefix && make install) - wget $XORG_RELEASES/lib/$LIBXSHMFENCE_VERSION.tar.bz2 - tar -jxvf $LIBXSHMFENCE_VERSION.tar.bz2 - (cd $LIBXSHMFENCE_VERSION && ./configure --prefix=$HOME/prefix && make install) # Disabled LLVM (and therefore r300 and r600) because the build fails # with "undefined reference to `clock_gettime'" and "undefined # reference to `setupterm'" in llvmpipe. script: - if test "x$BUILD" = xmake; then ./autogen.sh --enable-debug --disable-gallium-llvm --with-egl-platforms=x11,drm --with-dri-drivers=i915,i965,radeon,r200,swrast,nouveau --with-gallium-drivers=svga,swrast,vc4,virgl ; make && make check; elif test x$BUILD = xscons; then scons; fi > 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964

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

dnl
dnl potentially-infringing-but-nobody-knows-for-sure stuff
dnl
AC_ARG_ENABLE([texture-float],
    [AS_HELP_STRING([--enable-texture-float],
        [enable floating-point textures and renderbuffers @<:@default=disabled@:>@])],
    [enable_texture_float="$enableval"],
    [enable_texture_float=no]
)
if test "x$enable_texture_float" = xyes; then
    AC_MSG_WARN([Floating-point textures enabled.])
    AC_MSG_WARN([Please consult docs/patents.txt with your lawyer before building Mesa.])
    DEFINES="$DEFINES -DTEXTURE_FLOAT_ENABLED"
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 Direct rendering or just indirect rendering
case "$host_os" in
gnu*)
    dnl Disable by default on GNU/Hurd
    driglx_direct_default="no"
    ;;
cygwin*)
    dnl Disable by default on cygwin
    driglx_direct_default="no"
    ;;
*)
    driglx_direct_default="yes"
    ;;
esac
AC_ARG_ENABLE([driglx-direct],
    [AS_HELP_STRING([--disable-driglx-direct],
        [enable direct rendering in GLX and EGL for DRI \
            @<:@default=auto@:>@])],
    [driglx_direct="$enableval"],
    [driglx_direct="$driglx_direct_default"])

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

    PKG_CHECK_MODULES([GLPROTO], [glproto >= $GLPROTO_REQUIRED])
    GL_PC_REQ_PRIV="glproto >= $GLPROTO_REQUIRED"
    DRI_PC_REQ_PRIV=""

    if test x"$driglx_direct" = xyes; then
        # Check for libdrm
        PKG_CHECK_MODULES([LIBDRM], [libdrm >= $LIBDRM_REQUIRED])
        PKG_CHECK_MODULES([DRI2PROTO], [dri2proto >= $DRI2PROTO_REQUIRED])
        GL_PC_REQ_PRIV="$GL_PC_REQ_PRIV libdrm >= $LIBDRM_REQUIRED dri2proto >= $DRI2PROTO_REQUIRED"
        DRI_PC_REQ_PRIV="libdrm >= $LIBDRM_REQUIRED"
    fi

    # 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 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="$DEFINES -DGLX_DIRECT_RENDERING"
        fi
        ;;
    cygwin*)
        DEFINES="$DEFINES -DUSE_EXTERNAL_DXTN_LIB=1 -DIN_DRI_DRIVER"
        DEFINES="$DEFINES -DGLX_INDIRECT_RENDERING"
        if test "x$driglx_direct" = xyes; then
            DEFINES="$DEFINES -DGLX_DIRECT_RENDERING"
        fi
        if test "x$DRI_DIRS" = "xyes"; then
            DRI_DIRS="swrast"
        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 $LIBDRM_LIBS"
                GALLIUM_WINSYS_DIRS="$GALLIUM_WINSYS_DIRS sw/wayland"
	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=enabled on x86/x86_64@:>@])],
    [enable_gallium_llvm="$enableval"],
    [enable_gallium_llvm=auto])
if test "x$enable_gallium_llvm" = xauto; then
    case "$host_cpu" in
    i*86|x86_64) enable_gallium_llvm=yes;;
    esac
fi
if test "x$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-r300],
    [AS_HELP_STRING([--enable-gallium-r300],
        [build gallium r300 @<:@default=build DRI driver only@:>@])],
    [enable_gallium_r300="$enableval"],
    [enable_gallium_r300=auto])
if test "x$enable_gallium_r300" != xno; then
    if test "x$MESA_LLVM" = x0; then
        case "$host_cpu" in
        i*86|x86_64) AC_MSG_ERROR([LLVM is required to build Gallium R300 on x86 and x86_64]);;
        esac
    fi
fi
if test "x$enable_gallium_r300" = xauto; then
    GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS r300"
    gallium_check_st "radeon/drm" "dri-r300"
elif test "x$enable_gallium_r300" = xyes; then
    GALLIUM_DRIVERS_DIRS="$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 r600 @<:@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"