i965: Invert image modifier/tiling inference
[mesa.git] / configure.ac
index a6ceee95a3ec801514945ab90d282f95153b6f24..5caf316089aac684e0ab72f73fa00a584bf67bda 100644 (file)
@@ -66,19 +66,24 @@ AC_SUBST([OSMESA_VERSION])
 OPENCL_VERSION=1
 AC_SUBST([OPENCL_VERSION])
 
-dnl Versions for external dependencies
-LIBDRM_REQUIRED=2.4.66
-LIBDRM_RADEON_REQUIRED=2.4.56
-LIBDRM_AMDGPU_REQUIRED=2.4.63
+# The idea is that libdrm is distributed as one cohesive package, even
+# though it is composed of multiple libraries. However some drivers
+# may have different version requirements than others. This list
+# codifies which drivers need which version of libdrm. Any libdrm
+# version dependencies in non-driver-specific code should be reflected
+# in the first entry.
+LIBDRM_REQUIRED=2.4.75
+LIBDRM_RADEON_REQUIRED=2.4.71
+LIBDRM_AMDGPU_REQUIRED=2.4.81
 LIBDRM_INTEL_REQUIRED=2.4.75
 LIBDRM_NVVIEUX_REQUIRED=2.4.66
 LIBDRM_NOUVEAU_REQUIRED=2.4.66
 LIBDRM_FREEDRENO_REQUIRED=2.4.74
 LIBDRM_VC4_REQUIRED=2.4.69
-LIBDRM_ETNAVIV_REQUIRED=2.4.74
-DRI2PROTO_REQUIRED=2.6
-DRI3PROTO_REQUIRED=1.0
-PRESENTPROTO_REQUIRED=1.0
+LIBDRM_ETNAVIV_REQUIRED=2.4.80
+
+dnl Versions for external dependencies
+DRI2PROTO_REQUIRED=2.8
 GLPROTO_REQUIRED=1.4.14
 LIBOMXIL_BELLAGIO_REQUIRED=0.0
 LIBVA_REQUIRED=0.38.0
@@ -87,18 +92,20 @@ WAYLAND_REQUIRED=1.11
 XCB_REQUIRED=1.9.3
 XCBDRI2_REQUIRED=1.8
 XCBGLX_REQUIRED=1.8.1
+XDAMAGE_REQUIRED=1.1
 XSHMFENCE_REQUIRED=1.1
 XVMC_REQUIRED=1.0.6
 PYTHON_MAKO_REQUIRED=0.8.0
 LIBSENSORS_REQUIRED=4.0.0
+ZLIB_REQUIRED=1.2.8
 
 dnl LLVM versions
 LLVM_REQUIRED_GALLIUM=3.3.0
 LLVM_REQUIRED_OPENCL=3.6.0
-LLVM_REQUIRED_R600=3.6.0
-LLVM_REQUIRED_RADEONSI=3.6.0
+LLVM_REQUIRED_R600=3.9.0
+LLVM_REQUIRED_RADEONSI=3.9.0
 LLVM_REQUIRED_RADV=3.9.0
-LLVM_REQUIRED_SWR=3.6.0
+LLVM_REQUIRED_SWR=3.9.0
 
 dnl Check for progs
 AC_PROG_CPP
@@ -117,7 +124,6 @@ LT_PREREQ([2.2])
 LT_INIT([disable-static])
 
 AC_CHECK_PROG(RM, rm, [rm -f])
-AC_CHECK_PROG(XXD, xxd, [xxd])
 
 AX_PROG_BISON([],
               AS_IF([test ! -f "$srcdir/src/compiler/glsl/glcpp/glcpp-parse.c"],
@@ -263,7 +269,7 @@ DEFINES="-D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"
 AC_SUBST([DEFINES])
 android=no
 case "$host_os" in
-*-android)
+*-android*)
     android=yes
     ;;
 linux*|*-gnu*|gnu*|cygwin*)
@@ -297,7 +303,7 @@ if test "x$GCC" = xyes; then
     AC_LINK_IFELSE([AC_LANG_PROGRAM()],
                   AC_MSG_RESULT([yes]),
                   [CFLAGS="$save_CFLAGS -Wmissing-prototypes";
-                   AC_MSG_RESULT([no])]);
+                   AC_MSG_RESULT([no])])
 
     # Enable -fvisibility=hidden if using a gcc that supports it
     save_CFLAGS="$CFLAGS"
@@ -305,7 +311,7 @@ if test "x$GCC" = xyes; then
     VISIBILITY_CFLAGS="-fvisibility=hidden"
     CFLAGS="$CFLAGS $VISIBILITY_CFLAGS"
     AC_LINK_IFELSE([AC_LANG_PROGRAM()], AC_MSG_RESULT([yes]),
-                  [VISIBILITY_CFLAGS=""; AC_MSG_RESULT([no])]);
+                  [VISIBILITY_CFLAGS=""; AC_MSG_RESULT([no])])
 
     # Restore CFLAGS; VISIBILITY_CFLAGS are added to it where needed.
     CFLAGS=$save_CFLAGS
@@ -330,7 +336,7 @@ if test "x$GCC" = xyes; then
                   [MSVC2013_COMPAT_CFLAGS="$MSVC2013_COMPAT_CFLAGS -Werror=vla";
                    MSVC2013_COMPAT_CXXFLAGS="$MSVC2013_COMPAT_CXXFLAGS -Werror=vla";
                    AC_MSG_RESULT([yes])],
-                   AC_MSG_RESULT([no]));
+                   AC_MSG_RESULT([no]))
     CFLAGS="$save_CFLAGS"
 fi
 if test "x$GXX" = xyes; then
@@ -343,7 +349,7 @@ if test "x$GXX" = xyes; then
     CXXFLAGS="$CXXFLAGS $VISIBILITY_CXXFLAGS"
     AC_LANG_PUSH([C++])
     AC_LINK_IFELSE([AC_LANG_PROGRAM()], AC_MSG_RESULT([yes]),
-                  [VISIBILITY_CXXFLAGS="" ; AC_MSG_RESULT([no])]);
+                  [VISIBILITY_CXXFLAGS="" ; AC_MSG_RESULT([no])])
     AC_LANG_POP([C++])
 
     # Restore CXXFLAGS; VISIBILITY_CXXFLAGS are added to it where needed.
@@ -407,6 +413,20 @@ if test "x$GCC_ATOMIC_BUILTINS_SUPPORTED" = x1; then
 fi
 AM_CONDITIONAL([GCC_ATOMIC_BUILTINS_SUPPORTED], [test x$GCC_ATOMIC_BUILTINS_SUPPORTED = x1])
 
+dnl Check if host supports 64-bit atomics
+dnl note that lack of support usually results in link (not compile) error
+AC_MSG_CHECKING(whether __sync_add_and_fetch_8 is supported)
+AC_LINK_IFELSE([AC_LANG_SOURCE([[
+#include <stdint.h>
+uint64_t v;
+int main() {
+    return __sync_add_and_fetch(&v, (uint64_t)1);
+}]])], GCC_64BIT_ATOMICS_SUPPORTED=yes, GCC_64BIT_ATOMICS_SUPPORTED=no)
+if test "x$GCC_64BIT_ATOMICS_SUPPORTED" != xyes; then
+    DEFINES="$DEFINES -DMISSING_64BIT_ATOMICS"
+fi
+AC_MSG_RESULT($GCC_64BIT_ATOMICS_SUPPORTED)
+
 dnl Check for Endianness
 AC_C_BIGENDIAN(
    little_endian=no,
@@ -435,7 +455,7 @@ int main () {
 CFLAGS=$save_CFLAGS
 
 AC_ARG_ENABLE(pwr8,
-   [AC_HELP_STRING([--disable-pwr8-inst],
+   [AS_HELP_STRING([--disable-pwr8],
                    [disable POWER8-specific instructions])],
    [enable_pwr8=$enableval], [enable_pwr8=auto])
 
@@ -493,6 +513,12 @@ AC_ARG_ENABLE([profile],
     [enable_profile=no]
 )
 
+AC_ARG_ENABLE([sanitize],
+    [AS_HELP_STRING([--enable-sanitize@<:@=address|undefined@:>@],
+        [enable code sanitizer @<:@default=disabled@:>@])],
+    [enable_sanitize="$enableval"],
+    [enable_sanitize=no])
+
 if test "x$enable_profile" = xyes; then
     DEFINES="$DEFINES -DPROFILE"
     if test "x$GCC" = xyes; then
@@ -528,6 +554,21 @@ else
    DEFINES="$DEFINES -DNDEBUG"
 fi
 
+if test "x$enable_sanitize" != xno; then
+    if test "x$enable_profile" = xyes; then
+        AC_MSG_WARN([Sanitize and Profile are enabled at the same time])
+    fi
+
+    CFLAGS="$CFLAGS -fsanitize=$enable_sanitize"
+    CXXFLAGS="$CXXFLAGS -fsanitize=$enable_sanitize"
+    LDFLAGS="$LDFLAGS -fsanitize=$enable_sanitize"
+
+    AC_LINK_IFELSE(
+        [AC_LANG_SOURCE([int main(){return 0;}])],
+        [],
+        [AC_MSG_FAILURE([sanitize flags '$enable_sanitize' not supported])])
+fi
+
 dnl
 dnl Check if linker supports -Bsymbolic
 dnl
@@ -568,7 +609,12 @@ case "$host_os" in
 openbsd* | darwin* )
     LD_NO_UNDEFINED="" ;;
 *)
-    LD_NO_UNDEFINED="-Wl,--no-undefined" ;;
+    if test "x$enable_sanitize" = xno; then
+        LD_NO_UNDEFINED="-Wl,--no-undefined"
+    else
+        LD_NO_UNDEFINED=""
+    fi
+    ;;
 esac
 
 AC_SUBST([LD_NO_UNDEFINED])
@@ -678,7 +724,7 @@ dnl Arch/platform-specific settings
 dnl
 AC_ARG_ENABLE([asm],
     [AS_HELP_STRING([--disable-asm],
-        [disable assembly usage @<:@default=enabled on supported plaforms@:>@])],
+        [disable assembly usage @<:@default=enabled on supported platforms@:>@])],
     [enable_asm="$enableval"],
     [enable_asm=yes]
 )
@@ -760,6 +806,8 @@ LIBS="$LIBS $DLOPEN_LIBS"
 AC_CHECK_FUNCS([dladdr])
 LIBS="$save_LIBS"
 
+AC_CHECK_FUNC([dl_iterate_phdr], [DEFINES="$DEFINES -DHAVE_DL_ITERATE_PHDR"])
+
 case "$host_os" in
 darwin*)
     ;;
@@ -774,6 +822,9 @@ esac
 dnl See if posix_memalign is available
 AC_CHECK_FUNC([posix_memalign], [DEFINES="$DEFINES -DHAVE_POSIX_MEMALIGN"])
 
+dnl Check for zlib
+PKG_CHECK_MODULES([ZLIB], [zlib >= $ZLIB_REQUIRED])
+
 dnl Check for pthreads
 AX_PTHREAD
 if test "x$ax_pthread_ok" = xno; then
@@ -787,9 +838,10 @@ if test "x$android" = xno; then
     test -z "$PTHREAD_LIBS" && PTHREAD_LIBS="-lpthread"
 fi
 
-dnl pthread-stubs is mandatory on targets where it exists
+dnl pthread-stubs is mandatory on BSD platforms, due to the nature of the
+dnl project. Even then there's a notable issue as described in the project README
 case "$host_os" in
-cygwin* )
+linux* | cygwin* | darwin* | solaris* | *-gnu* | gnu*)
     pthread_stubs_possible="no"
     ;;
 * )
@@ -798,7 +850,7 @@ cygwin* )
 esac
 
 if test "x$pthread_stubs_possible" = xyes; then
-    PKG_CHECK_MODULES(PTHREADSTUBS, pthread-stubs)
+    PKG_CHECK_MODULES(PTHREADSTUBS, pthread-stubs >= 0.4)
     AC_SUBST(PTHREADSTUBS_CFLAGS)
     AC_SUBST(PTHREADSTUBS_LIBS)
 fi
@@ -893,44 +945,31 @@ llvm_add_target() {
 # Call this inside ` ` to get the return value.
 # $1 is the llvm-config command with arguments.
 strip_unwanted_llvm_flags() {
-    # Use \> (marks the end of the word)
-    echo `$1` | sed \
-        -e 's/-march=\S*//g' \
-        -e 's/-mtune=\S*//g' \
-        -e 's/-mcpu=\S*//g' \
-        -e 's/-DNDEBUG\>//g' \
-        -e 's/-D_GNU_SOURCE\>//g' \
-        -e 's/-pedantic\>//g' \
-        -e 's/-Wcovered-switch-default\>//g' \
-        -e 's/-O.\>//g' \
-        -e 's/-g\>//g' \
-        -e 's/-Wall\>//g' \
-        -e 's/-Wcast-qual\>//g' \
-        -e 's/-Woverloaded-virtual\>//g' \
-        -e 's/-fcolor-diagnostics\>//g' \
-        -e 's/-fdata-sections\>//g' \
-        -e 's/-ffunction-sections\>//g' \
-        -e 's/-fno-exceptions\>//g' \
-        -e 's/-fomit-frame-pointer\>//g' \
-        -e 's/-fvisibility-inlines-hidden\>//g' \
-        -e 's/-fPIC\>//g' \
-        -e 's/-fstack-protector-strong\>//g'
+    echo " `$1` " | sed -E \
+        -e 's/[[[:space:]]]+-m[[^[:space:]]]*//g' \
+        -e 's/[[[:space:]]]+-DNDEBUG[[[:space:]]]/ /g' \
+        -e 's/[[[:space:]]]+-D_GNU_SOURCE[[[:space:]]]/ /g' \
+        -e 's/[[[:space:]]]+-pedantic[[[:space:]]]/ /g' \
+        -e 's/[[[:space:]]]+-W[[^[:space:]]]*//g' \
+        -e 's/[[[:space:]]]+-O[[^[:space:]]]*//g' \
+        -e 's/[[[:space:]]]+-g[[^[:space:]]]*//g' \
+        -e 's/-fno-rtti[[[:space:]]]/-Fno-rtti /g' \
+        -e 's/[[[:space:]]]+-f[[^[:space:]]]*//g' \
+        -e 's/-Fno-rtti[[[:space:]]]/-fno-rtti /g' \
+        -e 's/^[[[:space:]]]//' \
+        -e 's/[[[:space:]]]$//'
 }
 
 llvm_set_environment_variables() {
     if test "x$LLVM_CONFIG" != xno; then
         LLVM_VERSION=`$LLVM_CONFIG --version | egrep -o '^[[0-9.]]+'`
-        LLVM_LDFLAGS=`$LLVM_CONFIG --ldflags`
-        LLVM_BINDIR=`$LLVM_CONFIG --bindir`
         LLVM_CPPFLAGS=`strip_unwanted_llvm_flags "$LLVM_CONFIG --cppflags"`
-        LLVM_CFLAGS=$LLVM_CPPFLAGS   # CPPFLAGS seem to be sufficient
-        LLVM_CXXFLAGS=`strip_unwanted_llvm_flags "$LLVM_CONFIG --cxxflags"`
         LLVM_INCLUDEDIR=`$LLVM_CONFIG --includedir`
         LLVM_LIBDIR=`$LLVM_CONFIG --libdir`
 
-        # We need to respect LLVM_CFLAGS when compiling LLVM headers.
+        # We need to respect LLVM_CPPFLAGS when compiling LLVM headers.
         save_CFLAGS="$CFLAGS"
-        CFLAGS="$CFLAGS $LLVM_CFLAGS"
+        CFLAGS="$CFLAGS $LLVM_CPPFLAGS"
 
         AC_COMPUTE_INT([LLVM_VERSION_MAJOR], [LLVM_VERSION_MAJOR],
             [#include "${LLVM_INCLUDEDIR}/llvm/Config/llvm-config.h"])
@@ -946,25 +985,23 @@ llvm_set_environment_variables() {
             LLVM_VERSION_PATCH=0
         fi
 
-        if test "$LLVM_VERSION_MINOR" -lt 10; then
-            LLVM_VERSION_INT="${LLVM_VERSION_MAJOR}0${LLVM_VERSION_MINOR}"
-        else
-            LLVM_VERSION_INT="${LLVM_VERSION_MAJOR}${LLVM_VERSION_MINOR}"
-        fi
+        LLVM_VERSION_INT="${LLVM_VERSION_MAJOR}0${LLVM_VERSION_MINOR}"
 
-        DEFINES="${DEFINES} -DHAVE_LLVM=0x0$LLVM_VERSION_INT -DMESA_LLVM_VERSION_PATCH=$LLVM_VERSION_PATCH"
-        MESA_LLVM=1
+        FOUND_LLVM=yes
     else
-        MESA_LLVM=0
+        FOUND_LLVM=no
         LLVM_VERSION_INT=0
     fi
 }
 
-llvm_check_version_for() {
-    if test "x$MESA_LLVM" = x0; then
-        AC_MSG_ERROR([LLVM $1 or newer is required for $2])
-        return
+require_llvm() {
+    if test "x$enable_llvm" != "xyes"; then
+        AC_MSG_ERROR([--enable-llvm is required when building $1])
     fi
+}
+
+llvm_require_version() {
+    require_llvm $2
 
     llvm_target_version_major=`echo $1 | cut -d. -f1 | egrep -o '^[[0-9]]+'`
     llvm_target_version_minor=`echo $1 | cut -d. -f2 | egrep -o '^[[0-9]]+'`
@@ -1005,7 +1042,7 @@ radeon_llvm_check() {
         amdgpu_llvm_target_name='amdgpu'
     fi
 
-    llvm_check_version_for $*
+    llvm_require_version $*
 
     llvm_add_target $amdgpu_llvm_target_name $2
 
@@ -1013,24 +1050,34 @@ radeon_llvm_check() {
     llvm_add_component "bitreader" $2
     llvm_add_component "ipo" $2
 
-    NEED_RADEON_LLVM=yes
     if test "x$have_libelf" != xyes; then
-       AC_MSG_ERROR([$1 requires libelf when using llvm])
+       AC_MSG_ERROR([$2 requires libelf when using llvm])
     fi
 }
 
 llvm_set_environment_variables
 
-AC_SUBST([MESA_LLVM])
-AC_SUBST([LLVM_BINDIR])
 AC_SUBST([LLVM_CFLAGS])
-AC_SUBST([LLVM_CPPFLAGS])
 AC_SUBST([LLVM_CXXFLAGS])
-AC_SUBST([LLVM_LIBDIR])
 AC_SUBST([LLVM_LIBS])
 AC_SUBST([LLVM_LDFLAGS])
 AC_SUBST([LLVM_INCLUDEDIR])
-AC_SUBST([LLVM_VERSION])
+
+dnl
+dnl libunwind
+dnl
+PKG_CHECK_EXISTS(libunwind, [HAVE_LIBUNWIND=yes], [HAVE_LIBUNWIND=no])
+AC_ARG_ENABLE([libunwind],
+    [AS_HELP_STRING([--enable-libunwind],
+            [Use libunwind for backtracing (default: auto)])],
+        [LIBUNWIND="$enableval"],
+        [LIBUNWIND="$HAVE_LIBUNWIND"])
+
+if test "x$LIBUNWIND" = "xyes"; then
+    PKG_CHECK_MODULES(LIBUNWIND, libunwind)
+    AC_DEFINE(HAVE_LIBUNWIND, 1, [Have libunwind support])
+fi
+
 
 dnl Options for APIs
 AC_ARG_ENABLE([opengl],
@@ -1290,10 +1337,11 @@ dnl Libglvnd configuration
 dnl
 AC_ARG_ENABLE([libglvnd],
     [AS_HELP_STRING([--enable-libglvnd],
-        [Build for libglvnd @<:@default=disabled@:>@])],
+        [Build GLX and EGL for libglvnd @<:@default=disabled@:>@])],
     [enable_libglvnd="$enableval"],
     [enable_libglvnd=no])
-AM_CONDITIONAL(USE_LIBGLVND_GLX, test "x$enable_libglvnd" = xyes)
+AM_CONDITIONAL(USE_LIBGLVND, test "x$enable_libglvnd" = xyes)
+
 if test "x$enable_libglvnd" = xyes ; then
     dnl XXX: update once we can handle more than libGL/glx.
     dnl Namely: we should error out if neither of the glvnd enabled libraries
@@ -1309,8 +1357,11 @@ if test "x$enable_libglvnd" = xyes ; then
         ;;
     esac
 
-    PKG_CHECK_MODULES([GLVND], libglvnd >= 0.1.0)
-    DEFINES="${DEFINES} -DUSE_LIBGLVND_GLX=1"
+    PKG_CHECK_MODULES([GLVND], libglvnd >= 0.2.0)
+    LIBGLVND_DATADIR=`$PKG_CONFIG --variable=datadir libglvnd`
+    AC_SUBST([LIBGLVND_DATADIR])
+
+    DEFINES="${DEFINES} -DUSE_LIBGLVND=1"
     DEFAULT_GL_LIB_NAME=GLX_mesa
 fi
 
@@ -1472,7 +1523,7 @@ xdri)
     # DRI-based GLX
 
     # find the DRI deps for libGL
-    dri_modules="x11 xext xdamage xfixes x11-xcb xcb xcb-glx >= $XCBGLX_REQUIRED"
+    dri_modules="x11 xext xdamage >= $XDAMAGE_REQUIRED xfixes x11-xcb xcb xcb-glx >= $XCBGLX_REQUIRED"
 
     if test x"$driglx_direct" = xyes; then
         if test x"$dri_platform" = xdrm ; then
@@ -1481,20 +1532,10 @@ xdri)
 
             PKG_CHECK_MODULES([DRI2PROTO], [dri2proto >= $DRI2PROTO_REQUIRED])
             GL_PC_REQ_PRIV="$GL_PC_REQ_PRIV libdrm >= $LIBDRM_REQUIRED"
-            if test x"$enable_dri3" = xyes; then
-               PKG_CHECK_MODULES([DRI3PROTO], [dri3proto >= $DRI3PROTO_REQUIRED])
-               PKG_CHECK_MODULES([PRESENTPROTO], [presentproto >= $PRESENTPROTO_REQUIRED])
-            fi
 
             if test x"$enable_dri" = xyes; then
                dri_modules="$dri_modules xcb-dri2 >= $XCBDRI2_REQUIRED"
             fi
-
-            if test x"$enable_dri3" = xyes; then
-               PKG_CHECK_EXISTS([xcb >= $XCB_REQUIRED], [], AC_MSG_ERROR([DRI3 requires xcb >= $XCB_REQUIRED]))
-               dri3_modules="xcb xcb-dri3 xcb-present xcb-sync xshmfence >= $XSHMFENCE_REQUIRED"
-               PKG_CHECK_MODULES([XCB_DRI3], [$dri3_modules])
-            fi
         fi
         if test x"$dri_platform" = xapple ; then
             DEFINES="$DEFINES -DGLX_USE_APPLEGL"
@@ -1583,6 +1624,111 @@ if test "x$enable_glx_read_only_text" = xyes; then
     DEFINES="$DEFINES -DGLX_X86_READONLY_TEXT"
 fi
 
+dnl
+dnl DEPRECATED: EGL Platforms configuration
+dnl
+AC_ARG_WITH([egl-platforms],
+    [AS_HELP_STRING([--with-egl-platforms@<:@=DIRS...@:>@],
+        [DEPRECATED: use --with-platforms instead@<:@default=auto@:>@])],
+    [with_egl_platforms="$withval"],
+    [with_egl_platforms=auto])
+
+if test "x$with_egl_platforms" = xauto; then
+    with_egl_platforms="x11,surfaceless"
+    if test "x$enable_gbm" = xyes; then
+        with_egl_platforms="$with_egl_platforms,drm"
+    fi
+else
+    AC_MSG_WARN([--with-egl-platforms is deprecated. Use --with-platforms instead.])
+fi
+
+dnl
+dnl Platforms configuration
+dnl
+AC_ARG_WITH([platforms],
+    [AS_HELP_STRING([--with-platforms@<:@=DIRS...@:>@],
+        [comma delimited native platforms libEGL/Vulkan/other supports, e.g.
+        "x11,drm,wayland,surfaceless..." @<:@default=auto@:>@])],
+    [with_platforms="$withval"],
+    [with_platforms=auto])
+
+# Reuse the autodetection rather than duplicating it.
+if test "x$with_platforms" = xauto; then
+    with_platforms=$with_egl_platforms
+fi
+
+PKG_CHECK_MODULES([WAYLAND_SCANNER], [wayland-scanner],
+        WAYLAND_SCANNER=`$PKG_CONFIG --variable=wayland_scanner wayland-scanner`,
+        WAYLAND_SCANNER='')
+if test "x$WAYLAND_SCANNER" = x; then
+    AC_PATH_PROG([WAYLAND_SCANNER], [wayland-scanner], [:])
+fi
+
+# Do per platform setups and checks
+platforms=`IFS=', '; echo $with_platforms`
+for plat in $platforms; do
+       case "$plat" in
+       wayland)
+
+               PKG_CHECK_MODULES([WAYLAND], [wayland-client >= $WAYLAND_REQUIRED wayland-server >= $WAYLAND_REQUIRED])
+
+               if test "x$WAYLAND_SCANNER" = "x:"; then
+                       AC_MSG_ERROR([wayland-scanner is needed to compile the wayland platform])
+               fi
+               DEFINES="$DEFINES -DHAVE_WAYLAND_PLATFORM"
+               ;;
+
+       x11)
+               PKG_CHECK_MODULES([XCB_DRI2], [x11-xcb xcb xcb-dri2 >= $XCBDRI2_REQUIRED xcb-xfixes])
+               DEFINES="$DEFINES -DHAVE_X11_PLATFORM"
+               ;;
+
+       drm)
+               test "x$enable_gbm" = "xno" &&
+                       AC_MSG_ERROR([EGL platform drm needs gbm])
+               DEFINES="$DEFINES -DHAVE_DRM_PLATFORM"
+               ;;
+
+       surfaceless)
+               DEFINES="$DEFINES -DHAVE_SURFACELESS_PLATFORM"
+               ;;
+
+       android)
+               PKG_CHECK_MODULES([ANDROID], [cutils hardware sync])
+               DEFINES="$DEFINES -DHAVE_ANDROID_PLATFORM"
+               ;;
+
+       *)
+               AC_MSG_ERROR([platform '$plat' does not exist])
+               ;;
+       esac
+
+       case "$plat" in
+       wayland|drm|surfaceless)
+               require_libdrm "Platform $plat"
+               ;;
+       esac
+done
+
+if test "x$enable_glx" != xno; then
+    if ! echo "$platforms" | grep -q 'x11'; then
+        AC_MSG_ERROR([Building GLX without the x11 platform is not supported])
+    fi
+fi
+
+if test x"$enable_dri3" = xyes; then
+    DEFINES="$DEFINES -DHAVE_DRI3"
+
+    dri3_modules="x11-xcb xcb >= $XCB_REQUIRED xcb-dri3 xcb-xfixes xcb-present xcb-sync xshmfence >= $XSHMFENCE_REQUIRED"
+    PKG_CHECK_MODULES([XCB_DRI3], [$dri3_modules])
+fi
+
+AM_CONDITIONAL(HAVE_PLATFORM_X11, echo "$platforms" | grep -q 'x11')
+AM_CONDITIONAL(HAVE_PLATFORM_WAYLAND, echo "$platforms" | grep -q 'wayland')
+AM_CONDITIONAL(HAVE_PLATFORM_DRM, echo "$platforms" | grep -q 'drm')
+AM_CONDITIONAL(HAVE_PLATFORM_SURFACELESS, echo "$platforms" | grep -q 'surfaceless')
+AM_CONDITIONAL(HAVE_PLATFORM_ANDROID, echo "$platforms" | grep -q 'android')
+
 dnl
 dnl More DRI setup
 dnl
@@ -1625,10 +1771,6 @@ if test "x$enable_dri" = xyes; then
     # Platform specific settings and drivers to build
     case "$host_os" in
     linux*)
-        if test "x$enable_dri3" = xyes; then
-            DEFINES="$DEFINES -DHAVE_DRI3"
-        fi
-
         case "$host_cpu" in
         powerpc* | sparc*)
             # Build only the drivers for cards that exist on PowerPC/sparc
@@ -1684,17 +1826,17 @@ if test -n "$with_dri_drivers"; then
         case "x$driver" in
         xi915)
             require_libdrm "i915"
-            HAVE_I915_DRI=yes;
+            HAVE_I915_DRI=yes
             PKG_CHECK_MODULES([INTEL], [libdrm >= $LIBDRM_INTEL_REQUIRED libdrm_intel >= $LIBDRM_INTEL_REQUIRED])
             ;;
         xi965)
             require_libdrm "i965"
-            HAVE_I965_DRI=yes;
+            HAVE_I965_DRI=yes
             PKG_CHECK_MODULES([INTEL], [libdrm >= $LIBDRM_INTEL_REQUIRED libdrm_intel >= $LIBDRM_INTEL_REQUIRED])
             ;;
         xnouveau)
             require_libdrm "nouveau"
-            HAVE_NOUVEAU_DRI=yes;
+            HAVE_NOUVEAU_DRI=yes
             PKG_CHECK_MODULES([NVVIEUX], [libdrm >= $LIBDRM_NVVIEUX_REQUIRED libdrm_nouveau >= $LIBDRM_NVVIEUX_REQUIRED])
             ;;
         xradeon)
@@ -1704,11 +1846,11 @@ if test -n "$with_dri_drivers"; then
             ;;
         xr200)
             require_libdrm "r200"
-            HAVE_R200_DRI=yes;
+            HAVE_R200_DRI=yes
             PKG_CHECK_MODULES([RADEON], [libdrm >= $LIBDRM_RADEON_REQUIRED libdrm_radeon >= $LIBDRM_RADEON_REQUIRED])
             ;;
         xswrast)
-            HAVE_SWRAST_DRI=yes;
+            HAVE_SWRAST_DRI=yes
             ;;
         *)
             AC_MSG_ERROR([classic DRI driver '$driver' does not exist])
@@ -1719,6 +1861,45 @@ if test -n "$with_dri_drivers"; then
 fi
 
 
+dnl
+dnl Gallium LLVM
+dnl Deprecated: kept for backwards compatibility
+dnl
+AC_ARG_ENABLE([gallium-llvm],
+    [AS_HELP_STRING([--enable-gallium-llvm],
+        [DEPRECATED: use --enable-llvm instead])],
+    [enable_gallium_llvm="$enableval"],
+    [enable_gallium_llvm=auto])
+
+if test "x$enable_gallium_llvm" != xauto; then
+   AC_MSG_WARN([The --enable-gallium-llvm option has been deprecated. Use --enable-llvm instead.])
+   enable_llvm=$enable_gallium_llvm
+fi
+
+dnl
+dnl LLVM
+dnl
+AC_ARG_ENABLE([llvm],
+    [AS_HELP_STRING([--enable-llvm],
+        [build with LLVM support @<:@default=enabled on x86/x86_64@:>@])],
+    [enable_llvm="$enableval"],
+    [enable_llvm=auto])
+
+if test "x$enable_llvm" = xauto -a "x$FOUND_LLVM" = xyes; then
+    if test "x$FOUND_LLVM" = xyes; then
+        case "$host_cpu" in
+        i*86|x86_64|amd64) enable_llvm=yes;;
+        *) enable_llvm=no;;
+        esac
+    else
+        enable_llvm=no
+    fi
+fi
+
+if test "x$enable_llvm" = xyes -a "x$FOUND_LLVM" = xno; then
+    AC_MSG_ERROR([--enable-llvm selected but llvm-config is not found])
+fi
+
 #
 # Vulkan driver configuration
 #
@@ -1745,21 +1926,34 @@ AC_ARG_WITH([vulkan-icddir],
     [VULKAN_ICD_INSTALL_DIR='${datarootdir}/vulkan/icd.d'])
 AC_SUBST([VULKAN_ICD_INSTALL_DIR])
 
+require_x11_dri3() {
+    if echo "$platforms" | grep -q 'x11'; then
+        if test "x$enable_dri3" != xyes; then
+            AC_MSG_ERROR([$1 Vulkan driver requires DRI3 when built with X11])
+        fi
+    fi
+}
+
 if test -n "$with_vulkan_drivers"; then
+    if test "x$ac_cv_func_dl_iterate_phdr" = xno; then
+        AC_MSG_ERROR([Vulkan drivers require the dl_iterate_phdr function])
+    fi
+
     VULKAN_DRIVERS=`IFS=', '; echo $with_vulkan_drivers`
     for driver in $VULKAN_DRIVERS; do
         case "x$driver" in
         xintel)
-            if test "x$HAVE_I965_DRI" != xyes; then
-                AC_MSG_ERROR([Intel Vulkan driver requires the i965 dri driver])
-            fi
-            HAVE_INTEL_VULKAN=yes;
-
+            require_libdrm "ANV"
+            PKG_CHECK_MODULES([INTEL], [libdrm >= $LIBDRM_INTEL_REQUIRED libdrm_intel >= $LIBDRM_INTEL_REQUIRED])
+            require_x11_dri3 "ANV"
+            HAVE_INTEL_VULKAN=yes
             ;;
         xradeon)
+            require_libdrm "radv"
             PKG_CHECK_MODULES([AMDGPU], [libdrm >= $LIBDRM_AMDGPU_REQUIRED libdrm_amdgpu >= $LIBDRM_AMDGPU_REQUIRED])
             radeon_llvm_check $LLVM_REQUIRED_RADV "radv"
-            HAVE_RADEON_VULKAN=yes;
+            require_x11_dri3 "radv"
+            HAVE_RADEON_VULKAN=yes
             ;;
         *)
             AC_MSG_ERROR([Vulkan driver '$driver' does not exist])
@@ -1864,23 +2058,47 @@ if test "x$enable_xa" = xyes; then
 fi
 AM_CONDITIONAL(HAVE_ST_XA, test "x$enable_xa" = xyes)
 
+if echo $platforms | grep -q "x11"; then
+    have_xvmc_platform=yes
+else
+    have_xvmc_platform=no
+fi
+
+if echo $platforms | grep -q "x11"; then
+    have_vdpau_platform=yes
+else
+    have_vdpau_platform=no
+fi
+
+if echo $platforms | grep -q "x11\|drm"; then
+    have_omx_platform=yes
+else
+    have_omx_platform=no
+fi
+
+if echo $platforms | grep -q "x11\|drm\|wayland"; then
+    have_va_platform=yes
+else
+    have_va_platform=no
+fi
+
 dnl
 dnl Gallium G3DVL configuration
 dnl
 if test -n "$with_gallium_drivers" -a "x$with_gallium_drivers" != xswrast; then
-    if test "x$enable_xvmc" = xauto; then
-       PKG_CHECK_EXISTS([xvmc >= $XVMC_REQUIRED], [enable_xvmc=yes], [enable_xvmc=no])
+    if test "x$enable_xvmc" = xauto -a "x$have_xvmc_platform" = xyes; then
+        PKG_CHECK_EXISTS([xvmc >= $XVMC_REQUIRED], [enable_xvmc=yes], [enable_xvmc=no])
     fi
 
-    if test "x$enable_vdpau" = xauto; then
+    if test "x$enable_vdpau" = xauto -a "x$have_vdpau_platform" = xyes; then
        PKG_CHECK_EXISTS([vdpau >= $VDPAU_REQUIRED], [enable_vdpau=yes], [enable_vdpau=no])
     fi
 
-    if test "x$enable_omx" = xauto; then
-       PKG_CHECK_EXISTS([libomxil-bellagio >= $LIBOMXIL_BELLAGIO_REQUIRED], [enable_omx=yes], [enable_omx=no])
+    if test "x$enable_omx" = xauto -a "x$have_omx_platform" = xyes; then
+        PKG_CHECK_EXISTS([libomxil-bellagio >= $LIBOMXIL_BELLAGIO_REQUIRED], [enable_omx=yes], [enable_omx=no])
     fi
 
-    if test "x$enable_va" = xauto; then
+    if test "x$enable_va" = xauto -a "x$have_va_platform" = xyes; then
         PKG_CHECK_EXISTS([libva >= $LIBVA_REQUIRED], [enable_va=yes], [enable_va=no])
     fi
 fi
@@ -1898,23 +2116,24 @@ if test "x$enable_xvmc" = xyes -o \
         "x$enable_vdpau" = xyes -o \
         "x$enable_omx" = xyes -o \
         "x$enable_va" = xyes; then
-    if test x"$enable_dri3" = xyes; then
-        PKG_CHECK_MODULES([VL], [xcb-dri3 xcb-present xcb-sync xshmfence >= $XSHMFENCE_REQUIRED
-                                 xcb-xfixes x11-xcb xcb xcb-dri2 >= $XCBDRI2_REQUIRED])
-    else
-        PKG_CHECK_MODULES([VL], [x11-xcb xcb xcb-dri2 >= $XCBDRI2_REQUIRED])
-    fi
+    PKG_CHECK_MODULES([VL], [x11-xcb xcb xcb-dri2 >= $XCBDRI2_REQUIRED])
     need_gallium_vl_winsys=yes
 fi
 AM_CONDITIONAL(NEED_GALLIUM_VL_WINSYS, test "x$need_gallium_vl_winsys" = xyes)
 
 if test "x$enable_xvmc" = xyes; then
+    if test "x$have_xvmc_platform" != xyes; then
+        AC_MSG_ERROR([XVMC requires the x11 platforms])
+    fi
     PKG_CHECK_MODULES([XVMC], [xvmc >= $XVMC_REQUIRED])
     gallium_st="$gallium_st xvmc"
 fi
 AM_CONDITIONAL(HAVE_ST_XVMC, test "x$enable_xvmc" = xyes)
 
 if test "x$enable_vdpau" = xyes; then
+    if test "x$have_vdpau_platform" != xyes; then
+        AC_MSG_ERROR([VDPAU requires the x11 platforms])
+    fi
     PKG_CHECK_MODULES([VDPAU], [vdpau >= $VDPAU_REQUIRED])
     gallium_st="$gallium_st vdpau"
     DEFINES="$DEFINES -DHAVE_ST_VDPAU"
@@ -1922,12 +2141,18 @@ fi
 AM_CONDITIONAL(HAVE_ST_VDPAU, test "x$enable_vdpau" = xyes)
 
 if test "x$enable_omx" = xyes; then
+    if test "x$have_omx_platform" != xyes; then
+        AC_MSG_ERROR([OMX requires at least one of the x11 or drm platforms])
+    fi
     PKG_CHECK_MODULES([OMX], [libomxil-bellagio >= $LIBOMXIL_BELLAGIO_REQUIRED])
     gallium_st="$gallium_st omx"
 fi
 AM_CONDITIONAL(HAVE_ST_OMX, test "x$enable_omx" = xyes)
 
 if test "x$enable_va" = xyes; then
+    if test "x$have_va_platform" != xyes; then
+        AC_MSG_ERROR([VA requires at least one of the x11 drm or wayland platforms])
+    fi
     PKG_CHECK_MODULES([VA], [libva >= $LIBVA_REQUIRED])
     gallium_st="$gallium_st va"
 fi
@@ -2000,7 +2225,21 @@ if test "x$enable_opencl" = xyes; then
        AC_MSG_ERROR([Clover requires libelf])
     fi
 
-    llvm_check_version_for $LLVM_REQUIRED_OPENCL "opencl"
+    if test "x${ac_cv_cxx_compiler_gnu}" = xyes; then
+        altivec_enabled=no
+        AC_COMPILE_IFELSE([AC_LANG_SOURCE([
+        #if !defined(__VEC__) || !defined(__ALTIVEC__)
+        #error "AltiVec not enabled"
+        #endif
+        ])], altivec_enabled=yes)
+
+        if test "$altivec_enabled" = yes; then
+            CLOVER_STD_OVERRIDE="-std=gnu++11"
+        fi
+        AC_SUBST([CLOVER_STD_OVERRIDE])
+    fi
+
+    llvm_require_version $LLVM_REQUIRED_OPENCL "opencl"
 
     llvm_add_default_components "opencl"
     llvm_add_component "all-targets" "opencl"
@@ -2030,119 +2269,25 @@ dnl Gallium configuration
 dnl
 AM_CONDITIONAL(HAVE_GALLIUM, test -n "$with_gallium_drivers")
 
-dnl
-dnl EGL Platforms configuration
-dnl
-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="$withval"],
-    [if test "x$enable_egl" = xyes; then
-        if test "x$enable_gbm" = xyes; then
-           with_egl_platforms="x11,drm"
-        else
-           with_egl_platforms="x11"
-        fi
-    else
-        with_egl_platforms=""
-    fi])
-
-if test "x$with_egl_platforms" != "x" -a "x$enable_egl" != xyes; then
-    AC_MSG_ERROR([cannot build egl state tracker without EGL library])
-fi
-
-PKG_CHECK_MODULES([WAYLAND_SCANNER], [wayland-scanner],
-        WAYLAND_SCANNER=`$PKG_CONFIG --variable=wayland_scanner wayland-scanner`,
-        WAYLAND_SCANNER='')
-if test "x$WAYLAND_SCANNER" = x; then
-    AC_PATH_PROG([WAYLAND_SCANNER], [wayland-scanner])
-fi
-
-# Do per-EGL platform setups and checks
-egl_platforms=`IFS=', '; echo $with_egl_platforms`
-for plat in $egl_platforms; do
-       case "$plat" in
-       wayland)
-
-               PKG_CHECK_MODULES([WAYLAND], [wayland-client >= $WAYLAND_REQUIRED wayland-server >= $WAYLAND_REQUIRED])
-
-               if test "x$WAYLAND_SCANNER" = x; then
-                       AC_MSG_ERROR([wayland-scanner is needed to compile the wayland egl platform])
-               fi
-               ;;
-
-       x11)
-               PKG_CHECK_MODULES([XCB_DRI2], [x11-xcb xcb xcb-dri2 >= $XCBDRI2_REQUIRED xcb-xfixes])
-               ;;
-
-       drm)
-               test "x$enable_gbm" = "xno" &&
-                       AC_MSG_ERROR([EGL platform drm needs gbm])
-               ;;
-
-       surfaceless)
-               ;;
-
-       android)
-               PKG_CHECK_MODULES([ANDROID], [cutils hardware sync])
-               ;;
-
-       *)
-               AC_MSG_ERROR([EGL platform '$plat' does not exist])
-               ;;
-       esac
-
-       case "$plat" in
-       wayland|drm|surfaceless)
-               require_libdrm "Platform $plat"
-               ;;
-       esac
-done
-
 # libEGL wants to default to the first platform specified in
 # ./configure.  parse that here.
-if test "x$egl_platforms" != "x"; then
-    FIRST_PLATFORM_CAPS=`echo $egl_platforms | sed 's| .*||' | tr '[[a-z]]' '[[A-Z]]'`
+if test "x$platforms" != "x"; then
+    FIRST_PLATFORM_CAPS=`echo $platforms | sed 's| .*||' | tr '[[a-z]]' '[[A-Z]]'`
     EGL_NATIVE_PLATFORM="_EGL_PLATFORM_$FIRST_PLATFORM_CAPS"
 else
     EGL_NATIVE_PLATFORM="_EGL_INVALID_PLATFORM"
 fi
 
-AM_CONDITIONAL(HAVE_PLATFORM_X11, echo "$egl_platforms" | grep -q 'x11')
-AM_CONDITIONAL(HAVE_PLATFORM_WAYLAND, echo "$egl_platforms" | grep -q 'wayland')
-AM_CONDITIONAL(HAVE_EGL_PLATFORM_DRM, echo "$egl_platforms" | grep -q 'drm')
-AM_CONDITIONAL(HAVE_EGL_PLATFORM_SURFACELESS, echo "$egl_platforms" | grep -q 'surfaceless')
-AM_CONDITIONAL(HAVE_EGL_PLATFORM_ANDROID, echo "$egl_platforms" | grep -q 'android')
-
 AC_SUBST([EGL_NATIVE_PLATFORM])
 AC_SUBST([EGL_CFLAGS])
 
 # If we don't have the X11 platform, set this define so we don't try to include
 # the X11 headers.
-if ! echo "$egl_platforms" | grep -q 'x11'; then
+if ! echo "$platforms" | grep -q 'x11'; then
     DEFINES="$DEFINES -DMESA_EGL_NO_X11_HEADERS"
     GL_PC_CFLAGS="$GL_PC_CFLAGS -DMESA_EGL_NO_X11_HEADERS"
 fi
 
-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="$enableval"],
-    [enable_gallium_llvm=auto])
-
-if test -z "$with_gallium_drivers"; then
-    enable_gallium_llvm=no
-fi
-if test "x$enable_gallium_llvm" = xauto; then
-    case "$host_cpu" in
-    i*86|x86_64|amd64) enable_gallium_llvm=yes;;
-    esac
-fi
-
 dnl Directory for XVMC libs
 AC_ARG_WITH([xvmc-libdir],
     [AS_HELP_STRING([--with-xvmc-libdir=DIR],
@@ -2170,7 +2315,8 @@ AC_ARG_WITH([omx-libdir],
     [AS_HELP_STRING([--with-omx-libdir=DIR],
         [directory for the OMX libraries])],
     [OMX_LIB_INSTALL_DIR="$withval"],
-    [OMX_LIB_INSTALL_DIR=`$PKG_CONFIG --define-variable=libdir=\$libdir --variable=pluginsdir libomxil-bellagio`])
+    [OMX_LIB_INSTALL_DIR=`$PKG_CONFIG --exists libomxil-bellagio && \
+                          $PKG_CONFIG --define-variable=libdir=\$libdir --variable=pluginsdir libomxil-bellagio`])
 AC_SUBST([OMX_LIB_INSTALL_DIR])
 
 dnl Directory for VA libs
@@ -2189,17 +2335,6 @@ AC_ARG_WITH([d3d-libdir],
     [D3D_DRIVER_INSTALL_DIR="${libdir}/d3d"])
 AC_SUBST([D3D_DRIVER_INSTALL_DIR])
 
-dnl
-dnl Gallium helper functions
-dnl
-gallium_require_llvm() {
-    if test "x$enable_gallium_llvm" = "xyes"; then
-        llvm_check_version_for $LLVM_REQUIRED_GALLIUM "gallium"
-    else
-        AC_MSG_ERROR([--enable-gallium-llvm is required when building $1])
-    fi
-}
-
 dnl
 dnl r300 doesn't strictly require LLVM, but for performance reasons we
 dnl highly recommend LLVM usage. So require it at least on x86 and x86_64
@@ -2208,7 +2343,7 @@ dnl
 r300_require_llvm() {
     case "$host" in *gnux32) return;; esac
     case "$host_cpu" in
-    i*86|x86_64|amd64) gallium_require_llvm $1
+    i*86|x86_64|amd64) require_llvm $1
         ;;
     esac
 }
@@ -2218,25 +2353,18 @@ dnl DRM is needed by X, Wayland, and offscreen rendering.
 dnl Surfaceless is an alternative for the last one.
 dnl
 require_basic_egl() {
-    case "$with_egl_platforms" in
+    case "$with_platforms" in
         *drm*|*surfaceless*)
             ;;
         *)
             AC_MSG_ERROR([$1 requires one of these:
-                  1) --with-egl-platforms=drm (X, Wayland, offscreen rendering based on DRM)
-                  2) --with-egl-platforms=surfaceless (offscreen only)
+                  1) --with-platforms=drm (X, Wayland, offscreen rendering based on DRM)
+                  2) --with-platforms=surfaceless (offscreen only)
                   Recommended options: drm,x11])
             ;;
     esac
 }
 
-radeon_gallium_llvm_check() {
-    if test "x$enable_gallium_llvm" != "xyes"; then
-        AC_MSG_ERROR([--enable-gallium-llvm is required when building $2])
-    fi
-    radeon_llvm_check $*
-}
-
 swr_require_cxx_feature_flags() {
     feature_name="$1"
     preprocessor_test="$2"
@@ -2300,8 +2428,8 @@ if test -n "$with_gallium_drivers"; then
             HAVE_GALLIUM_R600=yes
             PKG_CHECK_MODULES([RADEON], [libdrm >= $LIBDRM_RADEON_REQUIRED libdrm_radeon >= $LIBDRM_RADEON_REQUIRED])
             require_libdrm "r600"
-            if test "x$enable_opencl" = xyes; then
-                radeon_gallium_llvm_check $LLVM_REQUIRED_R600 "r600"
+            if test "x$enable_llvm" = xyes; then
+                radeon_llvm_check $LLVM_REQUIRED_R600 "r600"
 
                 llvm_add_component "asmparser" "r600"
                 llvm_add_component "bitreader" "r600"
@@ -2312,8 +2440,10 @@ if test -n "$with_gallium_drivers"; then
             PKG_CHECK_MODULES([RADEON], [libdrm >= $LIBDRM_RADEON_REQUIRED libdrm_radeon >= $LIBDRM_RADEON_REQUIRED])
             PKG_CHECK_MODULES([AMDGPU], [libdrm >= $LIBDRM_AMDGPU_REQUIRED libdrm_amdgpu >= $LIBDRM_AMDGPU_REQUIRED])
             require_libdrm "radeonsi"
-            radeon_gallium_llvm_check $LLVM_REQUIRED_RADEONSI "radeonsi"
-            require_basic_egl "radeonsi"
+            radeon_llvm_check $LLVM_REQUIRED_RADEONSI "radeonsi"
+            if test "x$enable_egl" = xyes; then
+                require_basic_egl "radeonsi"
+            fi
             ;;
         xnouveau)
             HAVE_GALLIUM_NOUVEAU=yes
@@ -2335,18 +2465,17 @@ if test -n "$with_gallium_drivers"; then
             ;;
         xswrast)
             HAVE_GALLIUM_SOFTPIPE=yes
-            if test "x$MESA_LLVM" = x1 && test "x$enable_gallium_llvm" == "xyes";  then
+            if test "x$enable_llvm" = xyes; then
                 HAVE_GALLIUM_LLVMPIPE=yes
             fi
             ;;
         xswr)
-            llvm_check_version_for $LLVM_REQUIRED_SWR "swr"
-            gallium_require_llvm "swr"
+            llvm_require_version $LLVM_REQUIRED_SWR "swr"
 
-            swr_require_cxx_feature_flags "C++11" "__cplusplus >= 201103L" \
-                ",-std=c++11" \
-                SWR_CXX11_CXXFLAGS
-            AC_SUBST([SWR_CXX11_CXXFLAGS])
+            swr_require_cxx_feature_flags "C++14" "__cplusplus >= 201402L" \
+                "-std=c++14" \
+                SWR_CXX14_CXXFLAGS
+            AC_SUBST([SWR_CXX14_CXXFLAGS])
 
             swr_require_cxx_feature_flags "AVX" "defined(__AVX__)" \
                 ",-mavx,-march=core-avx" \
@@ -2373,7 +2502,9 @@ if test -n "$with_gallium_drivers"; then
         xvirgl)
             HAVE_GALLIUM_VIRGL=yes
             require_libdrm "virgl"
-            require_basic_egl "virgl"
+            if test "x$enable_egl" = xyes; then
+                require_basic_egl "virgl"
+            fi
             ;;
         *)
             AC_MSG_ERROR([Unknown Gallium driver: $driver])
@@ -2382,25 +2513,37 @@ if test -n "$with_gallium_drivers"; then
     done
 fi
 
-if test "x$enable_gallium_llvm" == "xyes"; then
-    llvm_check_version_for $LLVM_REQUIRED_GALLIUM "gallium"
+# XXX: Keep in sync with LLVM_REQUIRED_SWR
+AM_CONDITIONAL(SWR_INVALID_LLVM_VERSION, test "x$LLVM_VERSION" != x3.9.0 -a \
+                                              "x$LLVM_VERSION" != x3.9.1)
+
+if test "x$enable_llvm" = "xyes" -a "$with_gallium_drivers"; then
+    llvm_require_version $LLVM_REQUIRED_GALLIUM "gallium"
     llvm_add_default_components "gallium"
 fi
 
 dnl We need to validate some needed dependencies for renderonly drivers.
 
-if test "x$HAVE_GALLIUM_ETNAVIV" != xyes -a "x$HAVE_GALLIUM_IMX" == xyes  ; then
-    AC_ERROR([Building with imx requires etnaviv])
+if test "x$HAVE_GALLIUM_ETNAVIV" != xyes -a "x$HAVE_GALLIUM_IMX" = xyes  ; then
+    AC_MSG_ERROR([Building with imx requires etnaviv])
 fi
 
-dnl Set LLVM_LIBS - This is done after the driver configuration so
-dnl that drivers can add additional components to LLVM_COMPONENTS.
-dnl Previously, gallium drivers were updating LLVM_LIBS directly
-dnl by calling llvm-config --libs ${DRIVER_LLVM_COMPONENTS}, but
-dnl this was causing the same libraries to be appear multiple times
-dnl in LLVM_LIBS.
+dnl
+dnl Set defines and buildtime variables only when using LLVM.
+dnl
+if test "x$enable_llvm" = xyes; then
+    DEFINES="${DEFINES} -DHAVE_LLVM=0x0$LLVM_VERSION_INT -DMESA_LLVM_VERSION_PATCH=$LLVM_VERSION_PATCH"
+
+    LLVM_LDFLAGS=`$LLVM_CONFIG --ldflags`
+    LLVM_CFLAGS=$LLVM_CPPFLAGS   # CPPFLAGS seem to be sufficient
+    LLVM_CXXFLAGS=`strip_unwanted_llvm_flags "$LLVM_CONFIG --cxxflags"`
 
-if test "x$MESA_LLVM" != x0; then
+    dnl Set LLVM_LIBS - This is done after the driver configuration so
+    dnl that drivers can add additional components to LLVM_COMPONENTS.
+    dnl Previously, gallium drivers were updating LLVM_LIBS directly
+    dnl by calling llvm-config --libs ${DRIVER_LLVM_COMPONENTS}, but
+    dnl this was causing the same libraries to be appear multiple times
+    dnl in LLVM_LIBS.
 
     if ! $LLVM_CONFIG --libs ${LLVM_COMPONENTS} >/dev/null; then
        AC_MSG_ERROR([Calling ${LLVM_CONFIG} failed])
@@ -2499,10 +2642,8 @@ AM_CONDITIONAL(NEED_RADEON_DRM_WINSYS, test "x$HAVE_GALLIUM_R300" = xyes -o \
                                             "x$HAVE_GALLIUM_R600" = xyes -o \
                                             "x$HAVE_GALLIUM_RADEONSI" = xyes)
 AM_CONDITIONAL(NEED_WINSYS_XLIB, test "x$enable_glx" = xgallium-xlib)
-AM_CONDITIONAL(NEED_RADEON_LLVM, test x$NEED_RADEON_LLVM = xyes)
 AM_CONDITIONAL(HAVE_GALLIUM_COMPUTE, test x$enable_opencl = xyes)
-AM_CONDITIONAL(HAVE_GALLIUM_LLVM, test "x$MESA_LLVM" = x1 -a \
-                                       "x$enable_gallium_llvm" = xyes)
+AM_CONDITIONAL(HAVE_GALLIUM_LLVM, test "x$enable_llvm" = xyes)
 AM_CONDITIONAL(USE_VC4_SIMULATOR, test x$USE_VC4_SIMULATOR = xyes)
 
 AM_CONDITIONAL(HAVE_LIBDRM, test "x$have_libdrm" = xyes)
@@ -2523,8 +2664,10 @@ AC_SUBST([NINE_VERSION], "$NINE_MAJOR.$NINE_MINOR.$NINE_TINY")
 AC_SUBST([VDPAU_MAJOR], 1)
 AC_SUBST([VDPAU_MINOR], 0)
 
-VA_MAJOR=`$PKG_CONFIG --modversion libva | $SED -n 's/\([[^\.]]*\)\..*$/\1/p'`
-VA_MINOR=`$PKG_CONFIG --modversion libva | $SED -n 's/.*\.\(.*\)\..*$/\1/p'`
+if test "x$enable_va" = xyes; then
+    VA_MAJOR=`$PKG_CONFIG --modversion libva | $SED -n 's/\([[^\.]]*\)\..*$/\1/p'`
+    VA_MINOR=`$PKG_CONFIG --modversion libva | $SED -n 's/.*\.\(.*\)\..*$/\1/p'`
+fi
 AC_SUBST([VA_MAJOR], $VA_MAJOR)
 AC_SUBST([VA_MINOR], $VA_MINOR)
 
@@ -2663,8 +2806,6 @@ AC_CONFIG_FILES([Makefile
                src/glx/windows/windowsdriproto.pc
                src/gtest/Makefile
                src/intel/Makefile
-               src/intel/tools/Makefile
-               src/intel/vulkan/Makefile
                src/loader/Makefile
                src/mapi/Makefile
                src/mapi/es1api/glesv1_cm.pc
@@ -2688,7 +2829,7 @@ AC_CONFIG_FILES([Makefile
                src/mesa/main/tests/Makefile
                src/util/Makefile
                src/util/tests/hash_table/Makefile
-               src/vulkan/wsi/Makefile])
+               src/vulkan/Makefile])
 
 AC_OUTPUT
 
@@ -2754,7 +2895,6 @@ dnl EGL
 echo ""
 echo "        EGL:             $enable_egl"
 if test "$enable_egl" = yes; then
-    echo "        EGL platforms:   $egl_platforms"
 
     egl_drivers=""
     if test "x$enable_dri" != "xno"; then
@@ -2772,6 +2912,8 @@ else
     echo "        GBM:             no"
 fi
 
+    echo "        EGL/Vulkan/VL platforms:   $platforms"
+
 # Vulkan
 echo ""
 if test "x$VULKAN_DRIVERS" != x; then
@@ -2782,7 +2924,7 @@ else
 fi
 
 echo ""
-if test "x$MESA_LLVM" = x1; then
+if test "x$enable_llvm" = xyes; then
     echo "        llvm:            yes"
     echo "        llvm-config:     $LLVM_CONFIG"
     echo "        llvm-version:    $LLVM_VERSION"
@@ -2818,18 +2960,20 @@ echo "        Static libs:     $enable_static"
 echo "        Shared-glapi:    $enable_shared_glapi"
 
 dnl Compiler options
-# cleanup the CFLAGS/CXXFLAGS/DEFINES vars
+# cleanup the CFLAGS/CXXFLAGS/LDFLAGS/DEFINES vars
 cflags=`echo $CFLAGS | \
     $SED 's/^ *//;s/  */ /;s/ *$//'`
 cxxflags=`echo $CXXFLAGS | \
     $SED 's/^ *//;s/  */ /;s/ *$//'`
+ldflags=`echo $LDFLAGS | $SED 's/^ *//;s/  */ /;s/ *$//'`
 defines=`echo $DEFINES | $SED 's/^ *//;s/  */ /;s/ *$//'`
 echo ""
 echo "        CFLAGS:          $cflags"
 echo "        CXXFLAGS:        $cxxflags"
+echo "        LDFLAGS:         $ldflags"
 echo "        Macros:          $defines"
 echo ""
-if test "x$MESA_LLVM" = x1; then
+if test "x$enable_llvm" = xyes; then
     echo "        LLVM_CFLAGS:     $LLVM_CFLAGS"
     echo "        LLVM_CXXFLAGS:   $LLVM_CXXFLAGS"
     echo "        LLVM_CPPFLAGS:   $LLVM_CPPFLAGS"