>>> Unpacking source...
 * Fetching https://anongit.freedesktop.org/git/mesa/mesa.git ...
git fetch https://anongit.freedesktop.org/git/mesa/mesa.git +HEAD:refs/git-r3/HEAD
git symbolic-ref refs/git-r3/media-libs/mesa/0/__main__ refs/git-r3/HEAD
 * Checking out https://anongit.freedesktop.org/git/mesa/mesa.git to /tmp/portage/media-libs/mesa-9999/work/mesa-9999 ...
git checkout --quiet refs/git-r3/HEAD
GIT update -->
   repository:               https://anongit.freedesktop.org/git/mesa/mesa.git
   at the commit:            64e619674e9b6b9c8101353cd8cda6e064d84199
>>> Source unpacked in /tmp/portage/media-libs/mesa-9999/work
>>> Preparing source in /tmp/portage/media-libs/mesa-9999/work/mesa-9999 ...
>>> Source prepared.
>>> Configuring source in /tmp/portage/media-libs/mesa-9999/work/mesa-9999 ...
 * abi_x86_32.x86: running multilib-minimal_abi_src_configure
meson --buildtype plain --libdir lib --localstatedir /var/lib --prefix /usr --sysconfdir /etc --wrap-mode nodownload --cross-file /tmp/portage/media-libs/mesa-9999/temp/meson.i686-pc-linux-gnu.x86 -Dplatforms=x11,surfaceless,wayland,drm -Dgallium-nine=false -Dllvm=true -Dgallium-omx=disabled -Dgallium-va=true -Dgallium-vdpau=true -Dgallium-xa=false -Dgallium-xvmc=false -Dva-libs-path=/usr/lib/va/drivers -Dgallium-opencl=standalone -Dosmesa=none -Dbuild-tests=false -Dglx=dri -Dshared-glapi=true -Dtexture-float=true -Dgallium-nine=false -Ddri3=true -Degl=true -Dgbm=true -Dgles1=false -Dgles2=true -Dlibunwind=false -Dvalgrind=false -Ddri-drivers=,r100,r200 -Dgallium-drivers=,swrast,radeonsi,r300,r600 -Dvulkan-drivers= /tmp/portage/media-libs/mesa-9999/work/mesa-9999 /tmp/portage/media-libs/mesa-9999/work/mesa-9999-abi_x86_32.x86
The Meson build system
Version: 0.46.1
Source dir: /tmp/portage/media-libs/mesa-9999/work/mesa-9999
Build dir: /tmp/portage/media-libs/mesa-9999/work/mesa-9999-abi_x86_32.x86
Build type: cross build
Program python found: YES (/tmp/portage/media-libs/mesa-9999/temp/python2.7/bin/python)
Project name: mesa
Native C compiler: x86_64-pc-linux-gnu-gcc -m32 (gcc 7.3.0 "x86_64-pc-linux-gnu-gcc (Gentoo 7.3.0-r3 p1.4) 7.3.0")
Appending CFLAGS from environment: '-O2 -march=znver1 -pipe'
Appending LDFLAGS from environment: '-Wl,-O1 -Wl,--as-needed'
Cross C compiler: x86_64-pc-linux-gnu-gcc -m32 (gcc 7.3.0)
Native C++ compiler: x86_64-pc-linux-gnu-g++ -m32 (gcc 7.3.0 "x86_64-pc-linux-gnu-g++ (Gentoo 7.3.0-r3 p1.4) 7.3.0")
Appending CXXFLAGS from environment: '-O2 -pipe'
Appending LDFLAGS from environment: '-Wl,-O1 -Wl,--as-needed'
Cross C++ compiler: x86_64-pc-linux-gnu-g++ -m32 (gcc 7.3.0)
Host machine cpu family: x86
Host machine cpu: i686
Target machine cpu family: x86
Target machine cpu: i686
Build machine cpu family: x86
Build machine cpu: i686
meson.build:61: WARNING: Floating-point texture enabled. Please consult docs/patents.txt and your lawyer before building mesa.

meson.build:296:4: ERROR:  Problem encountered: No platforms specified, consider -Dplatforms=drm,x11 at least

A full log can be found at /tmp/portage/media-libs/mesa-9999/work/mesa-9999-abi_x86_32.x86/meson-logs/meson-log.txt
 * ERROR: media-libs/mesa-9999::gentoo failed (configure phase):
 *   (no error message)
 * 
 * Call stack:
 *     ebuild.sh, line  124:  Called src_configure
 *   environment, line 3876:  Called multilib-minimal_src_configure
 *   environment, line 2432:  Called multilib_foreach_abi 'multilib-minimal_abi_src_configure'
 *   environment, line 2646:  Called multibuild_foreach_variant '_multilib_multibuild_wrapper' 'multilib-minimal_abi_src_configure'
 *   environment, line 2362:  Called _multibuild_run '_multilib_multibuild_wrapper' 'multilib-minimal_abi_src_configure'
 *   environment, line 2360:  Called _multilib_multibuild_wrapper 'multilib-minimal_abi_src_configure'
 *   environment, line 1008:  Called multilib-minimal_abi_src_configure
 *   environment, line 2426:  Called multilib_src_configure
 *   environment, line 2918:  Called meson_src_configure
 *   environment, line 2299:  Called die
 * The specific snippet of code:
 *       tc-env_build "$@" || die
 * 
 * If you need support, post the output of `emerge --info '=media-libs/mesa-9999::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=media-libs/mesa-9999::gentoo'`.
 * The complete build log is located at '/tmp/portage/media-libs/mesa-9999/temp/build.log'.
 * The ebuild environment file is located at '/tmp/portage/media-libs/mesa-9999/temp/environment'.
 * Working directory: '/tmp/portage/media-libs/mesa-9999/work/mesa-9999-abi_x86_32.x86'
 * S: '/tmp/portage/media-libs/mesa-9999/work/mesa-9999'