component/mesa: build with --enable-gbm

some components, like binary chromium needs libgbm, which is part of mesa, but
build only when enabled.

component/mesa/buildout.cfg

@@ -19,29 +19,30 @@ shared = true
 url = ftp://ftp.freedesktop.org/pub/mesa/11.0.3/mesa-11.0.3.tar.xz
 md5sum = bf9118bf0fbf360715cfe60baf7a1db5
 configure-options =
-  --enable-static
   --disable-gles1
   --disable-gles2
-  --disable-dri
+  --enable-dri
   --disable-dri3
   --enable-egl
-  --disable-gbm
+  --enable-gbm
+  --enable-sysfs
   --disable-xvmc
   --disable-vdpau
   --disable-va
-  --enable-xlib-glx
-  --disable-shared-glapi
+  --disable-xlib-glx
+  --enable-shared-glapi
   --disable-driglx-direct
   --disable-gallium-llvm
   --with-gallium-drivers=
   --with-dri-drivers=
 environment =
   PATH=${autoconf:location}/bin:${bison:location}/bin:${flex:location}/bin:${pkgconfig:location}/bin:${xz-utils:location}/bin:%(PATH)s
-  PKG_CONFIG_PATH=${damageproto:location}/lib/pkgconfig:${fixesproto:location}/lib/pkgconfig:${glproto:location}/lib/pkgconfig:${kbproto:location}/lib/pkgconfig:${libX11:location}/lib/pkgconfig:${libXau:location}/lib/pkgconfig:${libXext:location}/lib/pkgconfig:${libexpat:location}/lib/pkgconfig:${libxcb:location}/lib/pkgconfig:${xdamage:location}/lib/pkgconfig:${xextproto:location}/lib/pkgconfig:${xfixes:location}/lib/pkgconfig:${xorg-libpthread-stubs:location}/lib/pkgconfig:${xproto:location}/lib/pkgconfig
+  PKG_CONFIG_PATH=${damageproto:location}/lib/pkgconfig:${fixesproto:location}/lib/pkgconfig:${glproto:location}/lib/pkgconfig:${kbproto:location}/lib/pkgconfig:${libX11:location}/lib/pkgconfig:${libXau:location}/lib/pkgconfig:${libXext:location}/lib/pkgconfig:${libexpat:location}/lib/pkgconfig:${libxcb:location}/lib/pkgconfig:${xdamage:location}/lib/pkgconfig:${xextproto:location}/lib/pkgconfig:${xfixes:location}/lib/pkgconfig:${xorg-libpthread-stubs:location}/lib/pkgconfig:${xproto:location}/lib/pkgconfig:${libdrm:location}/lib/pkgconfig
   PYTHON2=${buildout:executable}
   ACLOCAL=${automake:location}/bin/aclocal -I${libtool:location}/share/aclocal -I${pkgconfig:location}/share/aclocal
   AUTOCONF=${autoconf:location}/bin/autoconf
   AUTOMAKE=${automake:location}/bin/automake
+  LDFLAGS=-Wl,-rpath=${libdrm:location}/lib
 make-options =
   -j1
   LIBTOOL=${libtool:location}/bin/libtool
@@ -57,3 +58,4 @@ configure-options =
 environment =
   PATH=${pkgconfig:location}/bin:%(PATH)s
   PKG_CONFIG_PATH=${damageproto:location}/lib/pkgconfig:${fixesproto:location}/lib/pkgconfig:${glproto:location}/lib/pkgconfig:${kbproto:location}/lib/pkgconfig:${libX11:location}/lib/pkgconfig:${libXau:location}/lib/pkgconfig:${libXext:location}/lib/pkgconfig:${libexpat:location}/lib/pkgconfig:${libxcb:location}/lib/pkgconfig:${mesa:location}/lib/pkgconfig:${xdamage:location}/lib/pkgconfig:${xextproto:location}/lib/pkgconfig:${xfixes:location}/lib/pkgconfig:${xorg-libpthread-stubs:location}/lib/pkgconfig:${xproto:location}/lib/pkgconfig
+  LDFLAGS=-Wl,-rpath=${libdrm:location}/lib