>>> Failed to emerge media-libs/mesa-9.0.1, Log file:

>>>  '/var/tmp/portage/media-libs/mesa-9.0.1/temp/build.log'

 * Messages for package media-libs/mesa-9.0.1:

 * ERROR: media-libs/mesa-9.0.1 failed (configure phase):
 *   econf failed
 *
 * Call stack:
 *          ebuild.sh, line   93:  Called src_configure
 *        environment, line 3465:  Called econf '--enable-dri' '--enable-glx' '--enable-texture-float' '--disable-debug' '--enable-egl' '--disable-gbm' '--disable-gles1' '--disable-gles2' '--enable-glx-tls' '--disable-osmesa' '--enable-asm' '--enable-shared-glapi' '--disable-xa' '--enable-xorg' '--with-dri-drivers=,swrast,nouveau,radeon,r200' '--with-gallium-drivers=,swrast,nouveau,r300,r600' '--with-egl-platforms=x11' '--enable-gallium-egl' '--disable-gallium-g3dvl' '--enable-gallium-llvm' '--disable-openvg' '--disable-r600-llvm-compiler' '--disable-vdpau' '--disable-xvmc'
 *   phase-helpers.sh, line  501:  Called die
 * The specific snippet of code:
 *   			die "econf failed"
 *
 * If you need support, post the output of `emerge --info '=media-libs/mesa-9.0.1'`,
 * the complete build log and the output of `emerge -pqv '=media-libs/mesa-9.0.1'`.
 * The complete build log is located at '/var/tmp/portage/media-libs/mesa-9.0.1/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/media-libs/mesa-9.0.1/temp/environment'.
 * Working directory: '/var/tmp/portage/media-libs/mesa-9.0.1/work/Mesa-9.0.1'
 * S: '/var/tmp/portage/media-libs/mesa-9.0.1/work/Mesa-9.0.1'