X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=configure.ac;h=46938f4b4629f6c5591b8067899da3f1d84feb83;hb=29a2e9133e415de8b010df5b80db758aaf1007a6;hp=f52c6db65a613378452735ab43c812e600aea74e;hpb=582132aaef3fa6fa912f27c75c3b3e5bd89d3714;p=mesa.git

diff --git a/configure.ac b/configure.ac
index f52c6db65a6..46938f4b462 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,11 +18,12 @@ AC_CONFIG_AUX_DIR([bin])
 AC_CANONICAL_HOST
 
 dnl Versions for external dependencies
-LIBDRM_REQUIRED=2.4.15
-LIBDRM_RADEON_REQUIRED=2.4.17
+LIBDRM_REQUIRED=2.4.23
+LIBDRM_RADEON_REQUIRED=2.4.23
+LIBDRM_INTEL_REQUIRED=2.4.23
 DRI2PROTO_REQUIRED=2.1
 GLPROTO_REQUIRED=1.4.11
-LIBDRM_XORG_REQUIRED=2.4.17
+LIBDRM_XORG_REQUIRED=2.4.23
 LIBKMS_XORG_REQUIRED=1.0.0
 
 dnl Check for progs
@@ -30,9 +31,14 @@ 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
@@ -48,9 +54,23 @@ solaris*)
     ;;
 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; then
+if test "x$GCC" = xyes -a "x$CLANG" = xno; then
     AC_MSG_CHECKING([whether gcc version is sufficient])
     major=0
     minor=0
@@ -123,7 +143,10 @@ esac
 
 dnl Add flags for gcc and g++
 if test "x$GCC" = xyes; then
-    CFLAGS="$CFLAGS -Wall -Wmissing-prototypes -std=c99 -ffast-math"
+    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="$CFLAGS"
@@ -138,6 +161,13 @@ fi
 if test "x$GXX" = xyes; then
     CXXFLAGS="$CXXFLAGS -Wall"
 
+    # Enable -fvisibility=hidden if using a gcc that supports it
+    save_CXXFLAGS="$CXXFLAGS"
+    AC_MSG_CHECKING([whether $CXX supports -fvisibility=hidden])
+    CXXFLAGS="$CXXFLAGS -fvisibility=hidden"
+    AC_LINK_IFELSE([AC_LANG_PROGRAM()], AC_MSG_RESULT([yes]),
+		   [CXXFLAGS="$save_CXXFLAGS" ; AC_MSG_RESULT([no])]);
+
     # Work around aliasing bugs - developers should comment this out
     CXXFLAGS="$CXXFLAGS -fno-strict-aliasing"
 fi
@@ -258,6 +288,8 @@ fi
 dnl
 dnl library names
 dnl
+LIB_PREFIX_GLOB='lib'
+LIB_VERSION_SEPARATOR='.'
 if test "$enable_static" = yes; then
     LIB_EXTENSION='a'
 else
@@ -265,7 +297,10 @@ else
     darwin* )
         LIB_EXTENSION='dylib' ;;
     cygwin* )
-        LIB_EXTENSION='dll.a' ;;
+        dnl prefix can be 'cyg' or 'lib'
+        LIB_PREFIX_GLOB='???'
+        LIB_VERSION_SEPARATOR='-'
+        LIB_EXTENSION='dll' ;;
     aix* )
         LIB_EXTENSION='a' ;;
     * )
@@ -282,16 +317,19 @@ EGL_LIB_NAME='lib$(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).'${LIB_EXTENSION}
-
-GL_LIB_GLOB='lib$(GL_LIB).*'${LIB_EXTENSION}'*'
-GLU_LIB_GLOB='lib$(GLU_LIB).*'${LIB_EXTENSION}'*'
-GLUT_LIB_GLOB='lib$(GLUT_LIB).*'${LIB_EXTENSION}'*'
-GLW_LIB_GLOB='lib$(GLW_LIB).*'${LIB_EXTENSION}'*'
-OSMESA_LIB_GLOB='lib$(OSMESA_LIB).*'${LIB_EXTENSION}'*'
-EGL_LIB_GLOB='lib$(EGL_LIB).*'${LIB_EXTENSION}'*'
-GLESv1_CM_LIB_GLOB='lib$(GLESv1_CM_LIB).*'${LIB_EXTENSION}'*'
-GLESv2_LIB_GLOB='lib$(GLESv2_LIB).*'${LIB_EXTENSION}'*'
-VG_LIB_GLOB='lib$(VG_LIB).*'${LIB_EXTENSION}'*'
+GLAPI_LIB_NAME='lib$(GLAPI_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}'*'
 
 AC_SUBST([GL_LIB_NAME])
 AC_SUBST([GLU_LIB_NAME])
@@ -302,6 +340,7 @@ 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([GL_LIB_GLOB])
 AC_SUBST([GLU_LIB_GLOB])
@@ -312,6 +351,7 @@ 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])
 
 dnl
 dnl Arch/platform-specific settings
@@ -342,14 +382,14 @@ if test "x$enable_asm" = xyes; then
     case "$host_cpu" in
     i?86)
         case "$host_os" in
-        linux* | *freebsd* | dragonfly*)
+        linux* | *freebsd* | dragonfly* | *netbsd*)
             test "x$enable_64bit" = xyes && asm_arch=x86_64 || asm_arch=x86
             ;;
         esac
         ;;
     x86_64)
         case "$host_os" in
-        linux* | *freebsd* | dragonfly*)
+        linux* | *freebsd* | dragonfly* | *netbsd*)
             test "x$enable_32bit" = xyes && asm_arch=x86 || asm_arch=x86_64
             ;;
         esac
@@ -410,6 +450,7 @@ 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="$DEFINES -DHAVE_POSIX_MEMALIGN"])
@@ -429,6 +470,77 @@ if test "x$enable_selinux" = "xyes"; then
     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$enable_shared_glapi" = xyes; then
+    SHARED_GLAPI="1"
+fi
+AC_SUBST([SHARED_GLAPI])
+
 dnl
 dnl Driver configuration. Options are xlib, dri and osmesa right now.
 dnl More later: fbdev, ...
@@ -441,13 +553,17 @@ linux*)
     i*86|x86_64|powerpc*|sparc*) default_driver="dri";;
     esac
     ;;
-*freebsd* | dragonfly*)
+*freebsd* | dragonfly* | *netbsd*)
     case "$host_cpu" in
     i*86|x86_64|powerpc*|sparc*) default_driver="dri";;
     esac
     ;;
 esac
 
+if test "x$enable_opengl" = xno; then
+    default_driver="no"
+fi
+
 AC_ARG_WITH([driver],
     [AS_HELP_STRING([--with-driver=DRIVER],
         [driver for Mesa: xlib,dri,osmesa @<:@default=dri when available, or xlib@:>@])],
@@ -456,6 +572,11 @@ AC_ARG_WITH([driver],
 dnl Check for valid option
 case "x$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])
@@ -467,16 +588,50 @@ dnl Driver specific build directories
 dnl
 
 dnl this variable will be prepended to SRC_DIRS and is not exported
-CORE_DIRS="mapi/glapi glsl mesa"
+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 identity"
+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$enabled_shared_glapi$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 "$mesa_driver" in
 xlib)
     DRIVER_DIRS="x11"
@@ -491,6 +646,9 @@ dri)
 osmesa)
     DRIVER_DIRS="osmesa"
     ;;
+no)
+    DRIVER_DRIS=""
+    ;;
 esac
 AC_SUBST([SRC_DIRS])
 AC_SUBST([GLU_DIRS])
@@ -583,7 +741,7 @@ xlib)
         GL_LIB_DEPS=""
     fi
     ;;
-dri)
+dri|no) # these checks are still desired when there is no mesa_driver
     # DRI must be shared, I think
     if test "$enable_static" = yes; then
         AC_MSG_ERROR([Can't use static libraries for DRI drivers])
@@ -598,8 +756,15 @@ dri)
 
     # 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="$dri_modules xxf86vm"
+        fi
+
         # add xcb modules if necessary
-        dri_modules="x11 xext xxf86vm xdamage xfixes"
         if test "$enable_xcb" = yes; then
             dri_modules="$dri_modules x11-xcb xcb-glx"
         fi
@@ -642,11 +807,20 @@ 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_LIB_DEPS])
+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])
+
+AC_SUBST([HAVE_XF86VIDMODE])
+
+PKG_CHECK_MODULES([LIBDRM_RADEON],
+		  [libdrm_radeon libdrm >= $LIBDRM_RADEON_REQUIRED],
+		  HAVE_LIBDRM_RADEON=yes,
+		  HAVE_LIBDRM_RADEON=no)
 
 dnl
 dnl More X11 setup
@@ -656,13 +830,19 @@ if test "$mesa_driver" = xlib; then
 fi
 
 dnl
-dnl More DRI setup
+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, ${GLX_USE_TLS})
+
+dnl
+dnl More DRI setup
+dnl
 dnl Directory for DRI drivers
 AC_ARG_WITH([dri-driverdir],
     [AS_HELP_STRING([--with-dri-driverdir=DIR],
@@ -694,51 +874,6 @@ if test "x$with_dri_drivers" = x; then
     with_dri_drivers=no
 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="$enableval"],
-    [enable_gles2=no])
-AC_ARG_ENABLE([gles-overlay],
-    [AS_HELP_STRING([--enable-gles-overlay],
-        [build separate OpenGL ES only libraries @<:@default=no@:>@])],
-    [enable_gles_overlay="$enableval"],
-    [enable_gles_overlay=no])
-
-API_DEFINES=""
-GLES_OVERLAY=0
-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="$API_DEFINES -DFEATURE_ES2=1"
-fi
-if test "x$enable_gles_overlay" = xyes -o \
-    "x$enable_gles1" = xyes -o "x$enable_gles2" = xyes; then
-    CORE_DIRS="mapi/es1api mapi/es2api $CORE_DIRS"
-    if test "x$enable_gles_overlay" = xyes; then
-        GLES_OVERLAY=1
-    fi
-fi
-AC_SUBST([API_DEFINES])
-AC_SUBST([GLES_OVERLAY])
-
 dnl If $with_dri_drivers is yes, directories will be added through
 dnl platform checks
 DRI_DIRS=""
@@ -759,7 +894,7 @@ yes)
 esac
 
 dnl Set DRI_DIRS, DEFINES and LIB_DEPS
-if test "$mesa_driver" = dri; then
+if test "$mesa_driver" = dri -o "$mesa_driver" = no; then
     # Use TLS in GLX?
     if test "x$GLX_USE_TLS" = xyes; then
         DEFINES="$DEFINES -DGLX_USE_TLS -DPTHREADS"
@@ -799,16 +934,13 @@ if test "$mesa_driver" = dri; then
             ;;
         esac
         ;;
-    freebsd* | dragonfly*)
+    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="$DEFINES -DGLX_DIRECT_RENDERING"
         fi
-        if test "x$GXX" = xyes; then
-            CXXFLAGS="$CXXFLAGS -ansi -pedantic"
-        fi
 
         if test "x$DRI_DIRS" = "xyes"; then
             DRI_DIRS="i810 i915 i965 mach64 mga r128 r200 r300 r600 radeon tdfx \
@@ -837,19 +969,21 @@ if test "$mesa_driver" = dri; then
     DRI_DIRS=`echo "$DRI_DIRS" | $SED 's/  */ /g'`
 
     # Check for expat
-    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.])])
+    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
     DRI_LIB_DEPS="$SELINUX_LIBS $LIBDRM_LIBS $EXPAT_LIB -lm -lpthread $DLOPEN_LIBS"
@@ -860,18 +994,13 @@ AC_SUBST([DRI_LIB_DEPS])
 
 case $DRI_DIRS in
 *i915*|*i965*)
-    PKG_CHECK_MODULES([INTEL], [libdrm_intel >= 2.4.21])
+    PKG_CHECK_MODULES([INTEL], [libdrm_intel >= $LIBDRM_INTEL_REQUIRED])
     ;;
 esac
 
 case $DRI_DIRS in
 *radeon*|*r200*|*r300*|*r600*)
-    PKG_CHECK_MODULES([LIBDRM_RADEON],
-		      [libdrm_radeon libdrm >= $LIBDRM_RADEON_REQUIRED],
-		      HAVE_LIBDRM_RADEON=yes,
-		      HAVE_LIBDRM_RADEON=no)
-
-    if test "$HAVE_LIBDRM_RADEON" = yes; then
+    if test "x$HAVE_LIBDRM_RADEON" = xyes; then
 	RADEON_CFLAGS="-DHAVE_LIBDRM_RADEON=1 $LIBDRM_RADEON_CFLAGS"
 	RADEON_LDFLAGS=$LIBDRM_RADEON_LIBS
     fi
@@ -895,6 +1024,9 @@ AC_ARG_ENABLE([gl-osmesa],
     [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 "$mesa_driver" = osmesa; then
         AC_MSG_ERROR([libGL is not available for OSMesa driver])
     else
@@ -951,31 +1083,39 @@ AC_ARG_ENABLE([egl],
         [disable EGL library @<:@default=enabled@:>@])],
     [enable_egl="$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" != osmesa; then
+        if test "$mesa_driver" = xlib -o "$mesa_driver" = dri; then
             EGL_DRIVERS_DIRS="glx"
         fi
 
-        # 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"
-        fi
-
-        if test "$have_libudev" = yes; then
-	    EGL_DRIVER_DRI2=dri2
-            DEFINES="$DEFINES -DHAVE_LIBUDEV"
-        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
+            fi
+	fi
 
         EGL_DRIVERS_DIRS="$EGL_DRIVERS_DIRS $EGL_DRIVER_DRI2"
     fi
@@ -991,6 +1131,12 @@ AC_ARG_ENABLE([glu],
         [enable OpenGL Utility library @<:@default=enabled@:>@])],
     [enable_glu="$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"
 
@@ -1040,9 +1186,13 @@ AC_ARG_ENABLE([glw],
     [enable_glw="$enableval"],
     [enable_glw=yes])
 dnl Don't build GLw on osmesa
-if test "x$enable_glw" = xyes && test "$mesa_driver" = osmesa; then
-    AC_MSG_WARN([Disabling GLw since the driver is OSMesa])
-    enable_glw=no
+if test "x$enable_glw" = xyes; then
+    case "$mesa_driver" in
+    osmesa|no)
+        AC_MSG_NOTICE([Disabling GLw since there is no OpenGL driver])
+        enable_glw=no
+        ;;
+    esac
 fi
 AC_ARG_ENABLE([motif],
     [AS_HELP_STRING([--enable-motif],
@@ -1116,16 +1266,20 @@ AC_ARG_ENABLE([glut],
     [enable_glut="$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
-dnl Don't build glut on osmesa
-if test "x$enable_glut" = xyes && test "$mesa_driver" = osmesa; then
-    AC_MSG_WARN([Disabling glut since the driver is OSMesa])
-    enable_glut=no
-fi
 
 if test "x$enable_glut" = xyes; then
     SRC_DIRS="$SRC_DIRS glut/glx"
@@ -1190,6 +1344,9 @@ AC_ARG_ENABLE([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_CHECK_HEADER([udis86.h], [HAS_UDIS86="yes"],
@@ -1202,15 +1359,30 @@ AC_SUBST([LLVM_LIBS])
 AC_SUBST([LLVM_LDFLAGS])
 AC_SUBST([LLVM_VERSION])
 
-VG_LIB_DEPS=""
-EGL_CLIENT_APIS='$(GL_LIB)'
-if test "x$enable_gles_overlay" = xyes; then
-    EGL_CLIENT_APIS="$EGL_CLIENT_APIS "'$(GLESv1_CM_LIB) $(GLESv2_LIB)'
-fi
-
 dnl
 dnl Gallium state trackers configuration
 dnl
+
+AC_ARG_ENABLE([gallium-egl],
+    [AS_HELP_STRING([--enable-gallium-egl],
+        [enable gallium EGL state tracker @<:@default=auto@:>@])],
+    [enable_gallium_egl="$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.
@@ -1231,16 +1403,24 @@ yes)
     dri)
         GALLIUM_STATE_TRACKERS_DIRS="dri"
         HAVE_ST_DRI="yes"
-        if test "x$enable_egl" = xyes; then
-            GALLIUM_STATE_TRACKERS_DIRS="$GALLIUM_STATE_TRACKERS_DIRS egl"
-            HAVE_ST_EGL="yes"
-        fi
         # 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
@@ -1266,22 +1446,11 @@ yes)
             PKG_CHECK_MODULES([LIBKMS_XORG], [libkms >= $LIBKMS_XORG_REQUIRED])
             HAVE_ST_XORG="yes"
             ;;
-        es)
-            AC_MSG_WARN([state tracker 'es' has been replaced by --enable-gles-overlay])
-
-            if test "x$enable_gles_overlay" != xyes; then
-                if test "x$enable_gles1" != xyes -a "x$enable_gles2" != xyes; then
-                    CORE_DIRS="mapi/es1api mapi/es2api $CORE_DIRS"
-                fi
-                GLES_OVERLAY=1
-                EGL_CLIENT_APIS="$EGL_CLIENT_APIS "'$(GLESv1_CM_LIB) $(GLESv2_LIB)'
-            fi
-	    tracker=""
-            ;;
         vega)
-            CORE_DIRS="$CORE_DIRS mapi/vgapi"
-            VG_LIB_DEPS="$VG_LIB_DEPS -lpthread"
-            EGL_CLIENT_APIS="$EGL_CLIENT_APIS "'$(VG_LIB)'
+            if test "x$enable_openvg" != xyes; then
+                AC_MSG_ERROR([cannot build vega state tracker without --enable-openvg])
+            fi
+            have_st_vega="yes"
             ;;
         esac
 
@@ -1296,18 +1465,36 @@ yes)
         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"
-	# define GLX_DIRECT_RENDERING even when the driver is not dri
-	if test "x$mesa_driver" != xdri -a "x$driglx_direct" = xyes; then
-            DEFINES="$DEFINES -DGLX_DIRECT_RENDERING"
-	fi
 fi
 
 if test "x$HAVE_ST_XORG" = xyes; then
@@ -1319,7 +1506,7 @@ fi
 AC_ARG_WITH([egl-platforms],
     [AS_HELP_STRING([--with-egl-platforms@<:@=DIRS...@:>@],
         [comma delimited native platforms libEGL supports, e.g.
-        "x11,kms" @<:@default=auto@:>@])],
+        "x11,drm" @<:@default=auto@:>@])],
     [with_egl_platforms="$withval"],
     [with_egl_platforms=yes])
 AC_ARG_WITH([egl-displays],
@@ -1332,6 +1519,9 @@ 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="$EGL_PLATFORMS drm"
+        fi
     fi
     ;;
 *)
@@ -1392,7 +1582,7 @@ AC_ARG_ENABLE([gallium-llvm],
 if test "x$enable_gallium_llvm" = xyes; then
     if test "x$LLVM_CONFIG" != xno; then
 	LLVM_VERSION=`$LLVM_CONFIG --version`
-	LLVM_CFLAGS=`$LLVM_CONFIG --cflags`
+	LLVM_CFLAGS=`$LLVM_CONFIG --cppflags`
 	LLVM_LIBS="`$LLVM_CONFIG --libs jit interpreter nativecodegen bitwriter` -lstdc++"
 
 	if test "x$HAS_UDIS86" != xno; then
@@ -1474,18 +1664,28 @@ elif test "x$enable_gallium_i965" = xauto; then
 fi
 
 dnl
-dnl Gallium Radeon configuration
+dnl Gallium Radeon r300g configuration
 dnl
 AC_ARG_ENABLE([gallium-radeon],
     [AS_HELP_STRING([--enable-gallium-radeon],
         [build gallium radeon @<:@default=disabled@:>@])],
     [enable_gallium_radeon="$enableval"],
     [enable_gallium_radeon=auto])
+if test "x$enable_gallium_radeon" = xauto; then
+    if test "x$HAVE_LIBDRM_RADEON" = xyes; then
+	GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS r300"
+	gallium_check_st "radeon/drm" "dri-r300"
+    else
+	AC_MSG_WARN([libdrm_radeon is missing, not building gallium-radeon (r300)])
+    fi
+fi
 if test "x$enable_gallium_radeon" = xyes; then
-    GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS r300"
-    gallium_check_st "radeon/drm" "dri-radeong" "xorg-radeon"
-elif test "x$enable_gallium_radeon" = xauto; then
-    GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS r300"
+    if test "x$HAVE_LIBDRM_RADEON" = xyes; then
+	GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS r300"
+	gallium_check_st "radeon/drm" "dri-r300" "xorg-radeon"
+    else
+	AC_MSG_ERROR([libdrm_radeon is missing, cannot build gallium-radeon (r300)])
+    fi
 fi
 
 dnl
@@ -1497,8 +1697,12 @@ AC_ARG_ENABLE([gallium-r600],
     [enable_gallium_r600="$enableval"],
     [enable_gallium_r600=auto])
 if test "x$enable_gallium_r600" = xyes; then
-    GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS r600"
-    gallium_check_st "r600/drm" "dri-r600"
+    if test "x$HAVE_LIBDRM_RADEON" = xyes; then
+	GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS r600"
+	gallium_check_st "r600/drm" "dri-r600"
+    else
+	AC_MSG_ERROR([libdrm_radeon is missing, cannot build gallium-r600])
+    fi
 fi
 
 dnl
@@ -1510,7 +1714,7 @@ AC_ARG_ENABLE([gallium-nouveau],
     [enable_gallium_nouveau="$enableval"],
     [enable_gallium_nouveau=no])
 if test "x$enable_gallium_nouveau" = xyes; then
-    GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS nouveau nvfx nv50"
+    GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS nouveau nvfx nv50 nvc0"
     gallium_check_st "nouveau/drm" "dri-nouveau" "xorg-nouveau"
 fi
 
@@ -1557,25 +1761,55 @@ 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:          $mesa_driver"
-if echo "$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:     $dri_dirs"
+if test "$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"
+    fi
 fi
-    echo "        DRI driver dir:  $DRI_DRIVER_INSTALL_DIR"
+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 "        Use XCB:         $enable_xcb"
 
 echo ""
 if test "x$MESA_LLVM" = x1; then
@@ -1594,9 +1828,6 @@ if echo "$SRC_DIRS" | grep 'gallium' >/dev/null 2>&1; then
     echo "        Winsys dirs:     $GALLIUM_WINSYS_DIRS"
     echo "        Driver dirs:     $GALLIUM_DRIVERS_DIRS"
     echo "        Trackers dirs:   $GALLIUM_STATE_TRACKERS_DIRS"
-    if test "x$HAVE_ST_EGL" = xyes; then
-        echo "        EGL client APIs: $EGL_CLIENT_APIS"
-    fi
 else
     echo "        Gallium:         no"
 fi
@@ -1605,15 +1836,6 @@ dnl Libraries
 echo ""
 echo "        Shared libs:     $enable_shared"
 echo "        Static libs:     $enable_static"
-if test "$enable_egl" = yes; then
-    echo "        EGL:             $EGL_DRIVERS_DIRS"
-    echo "        EGL platforms:   $EGL_PLATFORMS"
-else
-    echo "        EGL:             no"
-fi
-echo "        GLU:             $enable_glu"
-echo "        GLw:             $enable_glw (Motif: $enable_motif)"
-echo "        glut:            $enable_glut"
 
 dnl Compiler options
 # cleanup the CFLAGS/CXXFLAGS/DEFINES vars
@@ -1626,6 +1848,8 @@ echo ""
 echo "        CFLAGS:          $cflags"
 echo "        CXXFLAGS:        $cxxflags"
 echo "        Macros:          $defines"
+echo ""
+echo "        PYTHON2:         $PYTHON2"
 
 echo ""
 echo "        Run '${MAKE-make}' to build Mesa"