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 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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"

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 ""