When I update my gentoo I get this message.

x86_64-pc-linux-gnu-gcc -c -I. -I../../../include
-I../../../include/GL/internal -I../../../src/mesa/main
-I../../../src/mesa/glapi -I../../../src/mesa/drivers/dri/common

`pkg-config --cflags libdrm` -I/usr/X11R6/include -Wall -O2
-fomit-frame-pointer -pipe -falign-functions=4 -fPIC -m32 -D_POSIX_SOURCE
-D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE -D_BSD_SOURCE -D_GNU_SOURCE
-DPTHREADS -DUSE_EXTERNAL_DXTN_LIB=1 -DIN_DRI_DRIVER -DGLX_DIRECT_RENDERING
-DHAVE_ALIAS -DDEFAULT_DRIVER_DIR='"/usr/lib64/xorg/modules/dri"'
-DXF86VIDMODE -D_REENTRANT -UIN_DRI_DRIVER  -std=c99 -ffast-math
-D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE -D_BSD_SOURCE
-D_GNU_SOURCE -DPTHREADS -DUSE_EXTERNAL_DXTN_LIB=1 -DIN_DRI_DRIVER
-DGLX_DIRECT_RENDERING -DHAVE_ALIAS
-DDEFAULT_DRIVER_DIR='"/usr/lib64/xorg/modules/dri"' -DXF86VIDMODE
-D_REENTRANT -UIN_DRI_DRIVER dri_glx.c -o dri_glx.o x86_64-pc-linux-gnu-gcc
-c -I. -I../../../include -I../../../include/GL/internal
-I../../../src/mesa/main -I../../../src/mesa/glapi
-I../../../src/mesa/drivers/dri/common

`pkg-config --cflags libdrm` -I/usr/X11R6/include -Wall -O2
-fomit-frame-pointer -pipe -falign-functions=4 -fPIC -m32 -D_POSIX_SOURCE
-D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE -D_BSD_SOURCE -D_GNU_SOURCE
-DPTHREADS -DUSE_EXTERNAL_DXTN_LIB=1 -DIN_DRI_DRIVER -DGLX_DIRECT_RENDERING
-DHAVE_ALIAS -DDEFAULT_DRIVER_DIR='"/usr/lib64/xorg/modules/dri"'
-DXF86VIDMODE -D_REENTRANT -UIN_DRI_DRIVER  -std=c99 -ffast-math
-D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE -D_BSD_SOURCE
-D_GNU_SOURCE -DPTHREADS -DUSE_EXTERNAL_DXTN_LIB=1 -DIN_DRI_DRIVER
-DGLX_DIRECT_RENDERING -DHAVE_ALIAS
-DDEFAULT_DRIVER_DIR='"/usr/lib64/xorg/modules/dri"' -DXF86VIDMODE
-D_REENTRANT -UIN_DRI_DRIVER XF86dri.c -o XF86dri.o

XF86dri.c: In function `XF86DRIOpenConnection':

XF86dri.c:204: warning: left shift count >= width of type

XF86dri.c: In function `XF86DRIGetDeviceInfo':

XF86dri.c:566: warning: left shift count >= width of type ../../../bin/mklib
-o GL -linker 'x86_64-pc-linux-gnu-gcc' \ -major 1 -minor 2  \ -install
../../../lib  -lX11 -lXext -lXxf86vm -lm -lpthread -ldl `pkg-config --libs
libdrm` -ldrm ../../../src/mesa/glapi/glapi.o
../../../src/mesa/glapi/glthread.o ../../../src/mesa/main/dispatch.o
glcontextmodes.o clientattrib.o compsize.o eval.o glxcmds.o glxext.o
glxextensions.o indirect.o indirect_init.o indirect_size.o
indirect_window_pos.o indirect_transpose_matrix.o indirect_vertex_array.o
indirect_vertex_program.o pixel.o pixelstore.o render2.o renderpix.o
single2.o singlepix.o vertarr.o xfont.o glx_pbuffer.o glx_query.o
glx_texture_compression.o dri_glx.o XF86dri.o

mklib: Making Linux shared library:  libGL.so.1.2

/usr/lib/gcc/x86_64-pc-linux-gnu/3.4.6/../../../../x86_64-pc-linux-gnu/bin/l
d:

skipping incompatible

/usr/lib/gcc/x86_64-pc-linux-gnu/3.4.6/../../../libX11.so when searching for
-lX11

/usr/lib/gcc/x86_64-pc-linux-gnu/3.4.6/../../../../x86_64-pc-linux-gnu/bin/l
d:

skipping incompatible

/usr/lib/gcc/x86_64-pc-linux-gnu/3.4.6/../../../libX11.a when searching for
-lX11

/usr/lib/gcc/x86_64-pc-linux-gnu/3.4.6/../../../../x86_64-pc-linux-gnu/bin/l
d:

skipping incompatible /usr/lib/libX11.so when searching for -lX11

/usr/lib/gcc/x86_64-pc-linux-gnu/3.4.6/../../../../x86_64-pc-linux-gnu/bin/l
d:

skipping incompatible /usr/lib/libX11.a when searching for -lX11

/usr/lib/gcc/x86_64-pc-linux-gnu/3.4.6/../../../../x86_64-pc-linux-gnu/bin/l
d:

cannot find -lX11

collect2: ld returned 1 exit status

mklib: Installing libGL.so.1.2 libGL.so.1 libGL.so in ../../../lib

mv: impossível fazer stat em `libGL.so.1.2': Arquivo ou diretório não
encontrado

make[3]: ** [../../../lib/libGL.so] Erro 1

make[3]: Leaving directory

`/var/tmp/portage/mesa-6.4.2-r2/work/Mesa-6.4.2/src/glx/x11'

make[2]: ** [subdirs] Erro 1

make[2]: Leaving directory

`/var/tmp/portage/mesa-6.4.2-r2/work/Mesa-6.4.2/src'

make[1]: ** [default] Erro 1

make[1]: Leaving directory `/var/tmp/portage/mesa-6.4.2-r2/work/Mesa-6.4.2'

make: ** [linux-dri-x86] Erro 2

 

!!! ERROR: media-libs/mesa-6.4.2-r2 failed.

Call stack:

  ebuild.sh, line 1539:   Called dyn_compile

  ebuild.sh, line 939:   Called src_compile

  mesa-6.4.2-r2.ebuild, line 235:   Called die

 

!!! Build failed

!!! If you need support, post the topmost build error, and the call stack if
relevant.