glsl: fix shader_storage_blocks_write_access for SSBO block arrays (v2)
[mesa.git] / .travis.yml
index 81ac7696050476bfd2a62cdd35d2acd41d89e3be..18f114b7cc8bd147db339ad1e58c2dac306e703b 100644 (file)
@@ -1,7 +1,6 @@
 language: c
 
-sudo: false
-dist: trusty
+dist: xenial
 
 cache:
   apt: true
@@ -16,7 +15,7 @@ env:
     - GLPROTO_VERSION=glproto-1.4.17
     - DRI2PROTO_VERSION=dri2proto-2.8
     - LIBPCIACCESS_VERSION=libpciaccess-0.13.4
-    - LIBDRM_VERSION=libdrm-2.4.74
+    - LIBDRM_VERSION=libdrm-2.4.97
     - XCBPROTO_VERSION=xcb-proto-1.13
     - RANDRPROTO_VERSION=randrproto-1.3.0
     - LIBXRANDR_VERSION=libXrandr-1.3.0
@@ -32,468 +31,11 @@ env:
 
 matrix:
   include:
-    - env:
-        - LABEL="meson Vulkan"
-        - BUILD=meson
-        - DRI_DRIVERS=""
-        - GALLIUM_DRIVERS=""
-        - VULKAN_DRIVERS="intel,amd"
-        - LLVM_VERSION=6.0
-        - LLVM_CONFIG="llvm-config-${LLVM_VERSION}"
-      addons:
-        apt:
-          sources:
-            - llvm-toolchain-trusty-6.0
-            # llvm-6 requires libstdc++4.9 which is not in main repo
-            - ubuntu-toolchain-r-test
-          packages:
-            # From sources above
-            - llvm-6.0-dev
-            # Common
-            - xz-utils
-            - libexpat1-dev
-            - libelf-dev
-            - python3.5
-            - python3-pip
-    - env:
-        - LABEL="meson loaders/classic DRI"
-        - BUILD=meson
-        - DRI_DRIVERS="i915,i965,r100,r200,swrast,nouveau"
-        - GALLIUM_DRIVERS=""
-        - VULKAN_DRIVERS=""
-      addons:
-        apt:
-          packages:
-            - xz-utils
-            - x11proto-xf86vidmode-dev
-            - libexpat1-dev
-            - libx11-xcb-dev
-            - libxdamage-dev
-            - libxfixes-dev
-            - python3.5
-            - python3-pip
-    - env:
-        - LABEL="make loaders/classic DRI"
-        - BUILD=make
-        - MAKEFLAGS="-j4"
-        - MAKE_CHECK_COMMAND="make check"
-        - DRI_LOADERS="--enable-glx --enable-gbm --enable-egl --with-platforms=x11,drm,surfaceless,wayland --enable-osmesa"
-        - DRI_DRIVERS="i915,i965,radeon,r200,swrast,nouveau"
-        - GALLIUM_ST="--enable-dri --disable-opencl --disable-xa --disable-nine --disable-xvmc --disable-vdpau --disable-va --disable-omx-bellagio --disable-gallium-osmesa"
-        - GALLIUM_DRIVERS=""
-        - VULKAN_DRIVERS=""
-        - LIBUNWIND_FLAGS="--disable-libunwind"
-      addons:
-        apt:
-          packages:
-            - xz-utils
-            - x11proto-xf86vidmode-dev
-            - libexpat1-dev
-            - libx11-xcb-dev
-            - libxdamage-dev
-            - libxfixes-dev
-            - python3-pip
-    - env:
-        # NOTE: Building SWR is 2x (yes two) times slower than all the other
-        # gallium drivers combined.
-        # Start this early so that it doesn't hunder the run time.
-        - LABEL="make Gallium Drivers SWR"
-        - BUILD=make
-        - MAKEFLAGS="-j4"
-        - MAKE_CHECK_COMMAND="true"
-        - LLVM_VERSION=6.0
-        - LLVM_CONFIG="llvm-config-${LLVM_VERSION}"
-        - DRI_LOADERS="--disable-glx --disable-gbm --disable-egl"
-        - DRI_DRIVERS=""
-        - GALLIUM_ST="--enable-dri --disable-opencl --disable-xa --disable-nine --disable-xvmc --disable-vdpau --disable-va --disable-omx-bellagio --disable-gallium-osmesa"
-        - GALLIUM_DRIVERS="swr"
-        - VULKAN_DRIVERS=""
-        - LIBUNWIND_FLAGS="--enable-libunwind"
-      addons:
-        apt:
-          sources:
-            - llvm-toolchain-trusty-6.0
-            # llvm-6 requires libstdc++4.9 which is not in main repo
-            - ubuntu-toolchain-r-test
-          packages:
-            # From sources above
-            - llvm-6.0-dev
-            # Common
-            - xz-utils
-            - libexpat1-dev
-            - libx11-xcb-dev
-            - libelf-dev
-            - libunwind8-dev
-            - python3-pip
-    - env:
-        - LABEL="make Gallium Drivers RadeonSI"
-        - BUILD=make
-        - MAKEFLAGS="-j4"
-        - MAKE_CHECK_COMMAND="true"
-        - LLVM_VERSION=6.0
-        - LLVM_CONFIG="llvm-config-${LLVM_VERSION}"
-        - DRI_LOADERS="--disable-glx --disable-gbm --disable-egl"
-        - DRI_DRIVERS=""
-        - GALLIUM_ST="--enable-dri --disable-opencl --disable-xa --disable-nine --disable-xvmc --disable-vdpau --disable-va --disable-omx-bellagio --disable-gallium-osmesa"
-        - GALLIUM_DRIVERS="radeonsi"
-        - VULKAN_DRIVERS=""
-        - LIBUNWIND_FLAGS="--enable-libunwind"
-      addons:
-        apt:
-          sources:
-            - llvm-toolchain-trusty-6.0
-            # llvm-6 requires libstdc++4.9 which is not in main repo
-            - ubuntu-toolchain-r-test
-          packages:
-            # From sources above
-            - llvm-6.0-dev
-            # Common
-            - xz-utils
-            - libexpat1-dev
-            - libx11-xcb-dev
-            - libelf-dev
-            - libunwind8-dev
-            - python3-pip
-    - env:
-        - LABEL="make Gallium Drivers Other"
-        - BUILD=make
-        - MAKEFLAGS="-j4"
-        - MAKE_CHECK_COMMAND="true"
-        - LLVM_VERSION=3.9
-        - LLVM_CONFIG="llvm-config-${LLVM_VERSION}"
-        # New binutils linker is required for llvm-3.9
-        - OVERRIDE_PATH=/usr/lib/binutils-2.26/bin
-        - DRI_LOADERS="--disable-glx --disable-gbm --disable-egl"
-        - DRI_DRIVERS=""
-        - GALLIUM_ST="--enable-dri --disable-opencl --disable-xa --disable-nine --disable-xvmc --disable-vdpau --disable-va --disable-omx-bellagio --disable-gallium-osmesa"
-        - GALLIUM_DRIVERS="i915,nouveau,pl111,r300,r600,freedreno,svga,swrast,v3d,vc4,virgl,etnaviv,imx"
-        - VULKAN_DRIVERS=""
-        - LIBUNWIND_FLAGS="--enable-libunwind"
-      addons:
-        apt:
-          sources:
-            - llvm-toolchain-trusty-3.9
-          packages:
-            - binutils-2.26
-            # LLVM packaging is broken and misses these dependencies
-            - libedit-dev
-            # From sources above
-            - llvm-3.9-dev
-            # Common
-            - xz-utils
-            - libexpat1-dev
-            - libx11-xcb-dev
-            - libelf-dev
-            - libunwind8-dev
-            - python3-pip
-    - env:
-        - LABEL="make Gallium ST Clover LLVM-3.9"
-        - BUILD=make
-        - MAKEFLAGS="-j4"
-        - MAKE_CHECK_COMMAND="true"
-        - LLVM_VERSION=3.9
-        - LLVM_CONFIG="llvm-config-${LLVM_VERSION}"
-        - OVERRIDE_CC=gcc-4.7
-        - OVERRIDE_CXX=g++-4.7
-        # New binutils linker is required for llvm-3.9
-        - OVERRIDE_PATH=/usr/lib/binutils-2.26/bin
-        - DRI_LOADERS="--disable-glx --disable-gbm --disable-egl"
-        - DRI_DRIVERS=""
-        - GALLIUM_ST="--disable-dri --enable-opencl --enable-opencl-icd --enable-llvm --disable-xa --disable-nine --disable-xvmc --disable-vdpau --disable-va --disable-omx-bellagio --disable-gallium-osmesa"
-        - GALLIUM_DRIVERS="r600"
-        - VULKAN_DRIVERS=""
-        - LIBUNWIND_FLAGS="--enable-libunwind"
-      addons:
-        apt:
-          sources:
-            - llvm-toolchain-trusty-3.9
-          packages:
-            - binutils-2.26
-            - libclc-dev
-            # LLVM packaging is broken and misses these dependencies
-            - libedit-dev
-            - g++-4.7
-            # From sources above
-            - llvm-3.9-dev
-            - clang-3.9
-            - libclang-3.9-dev
-            # Common
-            - xz-utils
-            - libexpat1-dev
-            - libx11-xcb-dev
-            - libelf-dev
-            - libunwind8-dev
-            - python3-pip
-    - env:
-        - LABEL="make Gallium ST Clover LLVM-4.0"
-        - BUILD=make
-        - MAKEFLAGS="-j4"
-        - MAKE_CHECK_COMMAND="true"
-        - LLVM_VERSION=4.0
-        - LLVM_CONFIG="llvm-config-${LLVM_VERSION}"
-        - OVERRIDE_CC=gcc-4.8
-        - OVERRIDE_CXX=g++-4.8
-        - DRI_LOADERS="--disable-glx --disable-gbm --disable-egl"
-        - DRI_DRIVERS=""
-        - GALLIUM_ST="--disable-dri --enable-opencl --enable-opencl-icd --enable-llvm --disable-xa --disable-nine --disable-xvmc --disable-vdpau --disable-va --disable-omx-bellagio --disable-gallium-osmesa"
-        - GALLIUM_DRIVERS="r600"
-        - VULKAN_DRIVERS=""
-        - LIBUNWIND_FLAGS="--enable-libunwind"
-      addons:
-        apt:
-          sources:
-            - llvm-toolchain-trusty-4.0
-          packages:
-            - libclc-dev
-            # LLVM packaging is broken and misses these dependencies
-            - libedit-dev
-            - g++-4.8
-            # From sources above
-            - llvm-4.0-dev
-            - clang-4.0
-            - libclang-4.0-dev
-            # Common
-            - xz-utils
-            - libexpat1-dev
-            - libx11-xcb-dev
-            - libelf-dev
-            - libunwind8-dev
-            - python3-pip
-    - env:
-        - LABEL="make Gallium ST Clover LLVM-5.0"
-        - BUILD=make
-        - MAKEFLAGS="-j4"
-        - MAKE_CHECK_COMMAND="true"
-        - LLVM_VERSION=5.0
-        - LLVM_CONFIG="llvm-config-${LLVM_VERSION}"
-        - OVERRIDE_CC=gcc-4.8
-        - OVERRIDE_CXX=g++-4.8
-        - DRI_LOADERS="--disable-glx --disable-gbm --disable-egl"
-        - DRI_DRIVERS=""
-        - GALLIUM_ST="--disable-dri --enable-opencl --enable-opencl-icd --enable-llvm --disable-xa --disable-nine --disable-xvmc --disable-vdpau --disable-va --disable-omx-bellagio --disable-gallium-osmesa"
-        - GALLIUM_DRIVERS="r600"
-        - VULKAN_DRIVERS=""
-        - LIBUNWIND_FLAGS="--enable-libunwind"
-      addons:
-        apt:
-          sources:
-            - llvm-toolchain-trusty-5.0
-          packages:
-            - libclc-dev
-            # LLVM packaging is broken and misses these dependencies
-            - libedit-dev
-            - g++-4.8
-            # From sources above
-            - llvm-5.0-dev
-            - clang-5.0
-            - libclang-5.0-dev
-            # Common
-            - xz-utils
-            - libexpat1-dev
-            - libx11-xcb-dev
-            - libelf-dev
-            - libunwind8-dev
-            - python3-pip
-    - env:
-        - LABEL="make Gallium ST Clover LLVM-6.0"
-        - BUILD=make
-        - MAKEFLAGS="-j4"
-        - MAKE_CHECK_COMMAND="true"
-        - LLVM_VERSION=6.0
-        - LLVM_CONFIG="llvm-config-${LLVM_VERSION}"
-        - DRI_LOADERS="--disable-glx --disable-gbm --disable-egl"
-        - DRI_DRIVERS=""
-        - GALLIUM_ST="--disable-dri --enable-opencl --enable-opencl-icd --enable-llvm --disable-xa --disable-nine --disable-xvmc --disable-vdpau --disable-va --disable-omx-bellagio --disable-gallium-osmesa"
-        - GALLIUM_DRIVERS="r600,radeonsi"
-        - VULKAN_DRIVERS=""
-        - LIBUNWIND_FLAGS="--enable-libunwind"
-      addons:
-        apt:
-          sources:
-            - llvm-toolchain-trusty-6.0
-            # llvm-6 requires libstdc++4.9 which is not in main repo
-            - ubuntu-toolchain-r-test
-          packages:
-            - libclc-dev
-            # From sources above
-            - llvm-6.0-dev
-            - clang-6.0
-            - libclang-6.0-dev
-            # Common
-            - xz-utils
-            - libexpat1-dev
-            - libx11-xcb-dev
-            - libelf-dev
-            - libunwind8-dev
-            - python3-pip
-    - env:
-        - LABEL="make Gallium ST Clover LLVM-7"
-        - BUILD=make
-        - MAKEFLAGS="-j4"
-        - MAKE_CHECK_COMMAND="true"
-        - LLVM_VERSION=7
-        - LLVM_CONFIG="llvm-config-${LLVM_VERSION}"
-        - DRI_LOADERS="--disable-glx --disable-gbm --disable-egl"
-        - DRI_DRIVERS=""
-        - GALLIUM_ST="--disable-dri --enable-opencl --enable-opencl-icd --enable-llvm --disable-xa --disable-nine --disable-xvmc --disable-vdpau --disable-va --disable-omx-bellagio --disable-gallium-osmesa"
-        - GALLIUM_DRIVERS="r600,radeonsi"
-        - VULKAN_DRIVERS=""
-        - LIBUNWIND_FLAGS="--enable-libunwind"
-      addons:
-        apt:
-          sources:
-            - sourceline: 'deb http://apt.llvm.org/trusty/ llvm-toolchain-trusty-7 main'
-              key_url: https://apt.llvm.org/llvm-snapshot.gpg.key
-            # llvm-7 requires libstdc++4.9 which is not in main repo
-            - ubuntu-toolchain-r-test
-          packages:
-            - libclc-dev
-            # From sources above
-            - llvm-7-dev
-            - clang-7
-            - libclang-7-dev
-            # Common
-            - xz-utils
-            - libexpat1-dev
-            - libx11-xcb-dev
-            - libelf-dev
-            - libunwind8-dev
-    - env:
-        - LABEL="make Gallium ST Other"
-        - BUILD=make
-        - MAKEFLAGS="-j4"
-        - MAKE_CHECK_COMMAND="true"
-        - LLVM_VERSION=3.3
-        - LLVM_CONFIG="llvm-config-${LLVM_VERSION}"
-        - DRI_LOADERS="--disable-glx --disable-gbm --disable-egl"
-        - DRI_DRIVERS=""
-        - GALLIUM_ST="--enable-dri --disable-opencl --enable-xa --enable-nine --enable-xvmc --enable-vdpau --enable-va --enable-omx-bellagio --enable-gallium-osmesa"
-        # We need swrast for osmesa and nine.
-        # i915 most likely doesn't work with most ST.
-        # Regardless - we're doing a quick build test here.
-        - GALLIUM_DRIVERS="i915,swrast"
-        - VULKAN_DRIVERS=""
-        - LIBUNWIND_FLAGS="--enable-libunwind"
-      addons:
-        apt:
-          packages:
-            # We actually want to test against llvm-3.3
-            - llvm-3.3-dev
-            # Nine requires gcc 4.6... which is the one we have right ?
-            - libxvmc-dev
-            # Build locally, for now.
-            #- libvdpau-dev
-            #- libva-dev
-            - libomxil-bellagio-dev
-            # LLVM packaging is broken and misses these dependencies
-            - libedit-dev
-            # Common
-            - xz-utils
-            - libexpat1-dev
-            - libx11-xcb-dev
-            - libelf-dev
-            - libunwind8-dev
-            - python3-pip
-    - env:
-        - LABEL="make Vulkan"
-        - BUILD=make
-        - MAKEFLAGS="-j4"
-        - MAKE_CHECK_COMMAND="make -C src/gtest check && make -C src/intel check"
-        - LLVM_VERSION=6.0
-        - LLVM_CONFIG="llvm-config-${LLVM_VERSION}"
-        - DRI_LOADERS="--disable-glx --disable-gbm --disable-egl --with-platforms=x11,wayland"
-        - DRI_DRIVERS=""
-        - GALLIUM_ST="--enable-dri --enable-dri3 --disable-opencl --disable-xa --disable-nine --disable-xvmc --disable-vdpau --disable-va --disable-omx-bellagio --disable-gallium-osmesa"
-        - GALLIUM_DRIVERS=""
-        - VULKAN_DRIVERS="intel,radeon"
-        - LIBUNWIND_FLAGS="--disable-libunwind"
-      addons:
-        apt:
-          sources:
-            - llvm-toolchain-trusty-6.0
-            # llvm-6 requires libstdc++4.9 which is not in main repo
-            - ubuntu-toolchain-r-test
-          packages:
-            # From sources above
-            - llvm-6.0-dev
-            # Common
-            - xz-utils
-            - libexpat1-dev
-            - libx11-xcb-dev
-            - libelf-dev
-            - python3-pip
-    - env:
-        - LABEL="scons"
-        - BUILD=scons
-        - SCONSFLAGS="-j4"
-        # Explicitly disable.
-        - SCONS_TARGET="llvm=0"
-        # Keep it symmetrical to the make build.
-        - SCONS_CHECK_COMMAND="scons llvm=0 check"
-      addons:
-        apt:
-          packages:
-            # Common
-            - xz-utils
-            - x11proto-xf86vidmode-dev
-            - libexpat1-dev
-            - libx11-xcb-dev
-            - libelf-dev
-    - env:
-        - LABEL="scons LLVM"
-        - BUILD=scons
-        - SCONSFLAGS="-j4"
-        - SCONS_TARGET="llvm=1"
-        # Keep it symmetrical to the make build.
-        - SCONS_CHECK_COMMAND="scons llvm=1 check"
-        - LLVM_VERSION=3.3
-        - LLVM_CONFIG="llvm-config-${LLVM_VERSION}"
-      addons:
-        apt:
-          packages:
-            # LLVM packaging is broken and misses these dependencies
-            - libedit-dev
-            - llvm-3.3-dev
-            # Common
-            - xz-utils
-            - x11proto-xf86vidmode-dev
-            - libexpat1-dev
-            - libx11-xcb-dev
-            - libelf-dev
-    - env:
-        - LABEL="scons SWR"
-        - BUILD=scons
-        - SCONSFLAGS="-j4"
-        - SCONS_TARGET="swr=1"
-        - LLVM_VERSION=6.0
-        - LLVM_CONFIG="llvm-config-${LLVM_VERSION}"
-        # Keep it symmetrical to the make build. There's no actual SWR, yet.
-        - SCONS_CHECK_COMMAND="true"
-      addons:
-        apt:
-          sources:
-            - llvm-toolchain-trusty-6.0
-            # llvm-6 requires libstdc++4.9 which is not in main repo
-            - ubuntu-toolchain-r-test
-          packages:
-            # From sources above
-            - llvm-6.0-dev
-            # Common
-            - xz-utils
-            - x11proto-xf86vidmode-dev
-            - libexpat1-dev
-            - libx11-xcb-dev
-            - libelf-dev
-    - env:
-        - LABEL="macOS make"
-        - BUILD=make
-        - MAKEFLAGS="-j4"
-        - MAKE_CHECK_COMMAND="make check"
-        - DRI_LOADERS="--with-platforms=x11 --disable-egl"
-      os: osx
     - env:
         - LABEL="macOS meson"
         - BUILD=meson
+        - DRI_LOADERS="-Dplatforms=x11"
+        - GALLIUM_DRIVERS=swrast
       os: osx
 
 before_install:
@@ -521,35 +63,12 @@ before_install:
 
 install:
   # Install a more modern meson from pip, since the version in the
-  # ubuntu repos is often quite old. This requires python>=3.5, so
-  # let's make it default
+  # ubuntu repos is often quite old.
   - if test "x$BUILD" = xmeson; then
-      sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.5 10;
       pip3 install --user meson;
       pip3 install --user mako;
     fi
 
-  # Install autotools build dependencies
-  - if test "x$BUILD" = xmake; then
-      pip2 install --user mako;
-    fi
-
-  # Install a more modern scons from pip.
-  - if test "x$BUILD" = xscons; then
-      pip2 install --user "scons>=2.4";
-      pip2 install --user mako;
-    fi
-
-  # Since libdrm gets updated in configure.ac regularly, try to pick up the
-  # latest version from there.
-  - for line in `grep "^LIBDRM.*_REQUIRED=" configure.ac`; do
-      old_ver=`echo $LIBDRM_VERSION | sed 's/libdrm-//'`;
-      new_ver=`echo $line | sed 's/.*REQUIRED=//'`;
-      if `echo "$old_ver,$new_ver" | tr ',' '\n' | sort -Vc 2> /dev/null`; then
-        export LIBDRM_VERSION="libdrm-$new_ver";
-      fi;
-    done
-
   # Install dependencies where we require specific versions (or where
   # disallowed by Travis CI's package whitelisting).
 
@@ -611,7 +130,7 @@ install:
       tar -axvf $WAYLAND_PROTOCOLS_VERSION.tar.xz
       (cd $WAYLAND_PROTOCOLS_VERSION && ./configure --prefix=$HOME/prefix && make install)
 
-      # Meson requires ninja >= 1.6, but trusty has 1.3.x
+      # Meson requires ninja >= 1.6, but xenial has 1.3.x
       wget https://github.com/ninja-build/ninja/releases/download/v1.6.0/ninja-linux.zip
       unzip ninja-linux.zip
       mv ninja $HOME/prefix/bin/
@@ -653,63 +172,27 @@ install:
     fi
 
 script:
-  - if test "x$BUILD" = xmake; then
-      test -n "$OVERRIDE_CC" && export CC="$OVERRIDE_CC";
-      test -n "$OVERRIDE_CXX" && export CXX="$OVERRIDE_CXX";
-      test -n "$OVERRIDE_PATH" && export PATH="$OVERRIDE_PATH:$PATH";
-
-      export CFLAGS="$CFLAGS -isystem`pwd`";
-
-      mkdir build &&
-      cd build &&
-      ../autogen.sh --enable-debug
-        $LIBUNWIND_FLAGS
-        $DRI_LOADERS
-        --with-dri-drivers=$DRI_DRIVERS
-        $GALLIUM_ST
-        --with-gallium-drivers=$GALLIUM_DRIVERS
-        --with-vulkan-drivers=$VULKAN_DRIVERS
-        --disable-llvm-shared-libs
-        &&
-      make && eval $MAKE_CHECK_COMMAND;
-    fi
-
-  - if test "x$BUILD" = xscons; then
-      test -n "$OVERRIDE_CC" && export CC="$OVERRIDE_CC";
-      test -n "$OVERRIDE_CXX" && export CXX="$OVERRIDE_CXX";
-      scons $SCONS_TARGET && eval $SCONS_CHECK_COMMAND;
-    fi
-
-  - |
-    if test "x$BUILD" = xmeson; then
-
-      if test "x$TRAVIS_OS_NAME" == xosx; then
-        MESON_OPTIONS="-Degl=false"
-      fi
-
-      if test "x$TRAVIS_OS_NAME" == xlinux; then
-        MESON_OPTIONS="-Ddri-drivers=${DRI_DRIVERS:-[]} -Dgallium-drivers=${GALLIUM_DRIVERS:-[]} -Dvulkan-drivers=${VULKAN_DRIVERS:-[]}"
-      fi
-
-      # Travis CI has moved to LLVM 5.0, and meson is detecting
-      # automatically the available version in /usr/local/bin based on
-      # the PATH env variable order preference.
-      #
-      # As for 0.44.x, Meson cannot receive the path to the
-      # llvm-config binary as a configuration parameter. See
-      # https://github.com/mesonbuild/meson/issues/2887 and
-      # https://github.com/dcbaker/meson/commit/7c8b6ee3fa42f43c9ac7dcacc61a77eca3f1bcef
+  if test "x$BUILD" = xmeson; then
+    if test -n "$LLVM_CONFIG"; then
+      # We need to control the version of llvm-config we're using, so we'll
+      # generate a native file to do so. This requires meson >=0.49
       #
-      # We want to use the custom (APT) installed version. Therefore,
-      # let's make Meson find our wanted version sooner than the one
-      # at /usr/local/bin
-      #
-      # Once this is corrected, we would still need a patch similar
-      # to:
-      # https://lists.freedesktop.org/archives/mesa-dev/2017-December/180217.html
-      test -f /usr/bin/$LLVM_CONFIG && ln -s /usr/bin/$LLVM_CONFIG $HOME/prefix/bin/llvm-config
+      echo -e "[binaries]\nllvm-config = '`which $LLVM_CONFIG`'" > native.file
 
-      export CFLAGS="$CFLAGS -isystem`pwd`"
-      meson _build $MESON_OPTIONS
-      ninja -C _build
+      $LLVM_CONFIG --version
+    else
+      : > native.file
     fi
+
+    export CFLAGS="$CFLAGS -isystem`pwd`"
+    meson _build \
+                  --native-file=native.file \
+                  -Dbuild-tests=true \
+                  ${DRI_LOADERS} \
+                  -Ddri-drivers=${DRI_DRIVERS:-[]} \
+                  -Dgallium-drivers=${GALLIUM_DRIVERS:-[]} \
+                  -Dvulkan-drivers=${VULKAN_DRIVERS:-[]}
+    meson configure _build
+    ninja -C _build
+    ninja -C _build test
+  fi