* Your CXXFLAGS contains "-fvisibility-inlines-hidden" which can break packages.
 * 
 * Before you file a bug, please remove these flags and 
 * re-compile the package in question as well as all its dependencies
>>> Unpacking source...
>>> Unpacking seom-1.0.192.tar.bz2 to /var/tmp/portage/x11-libs/seom-1.0.192/work
>>> Unpacking seom-1.0.192.tar.bz2 to /var/tmp/portage/x11-libs/seom-1.0.192/work
>>> Source unpacked.
>>> Compiling source in /var/tmp/portage/x11-libs/seom-1.0.192 ...
./configure --prefix=/usr --host=x86_64-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --prefix=/usr --libdir=/usr/lib32 --build=x86_64-pc-linux-gnu
arch:     amd64
cflags:   -O3 -W -Wall
prefix:   /usr
x86_64-pc-linux-gnu-gcc -m32 -L/emul/linux/x86/lib -L/emul/linux/x86/usr/lib -Iinclude -std=c99 -O3 -W -Wall -fPIC -c -o src/buffer.o src/buffer.c
x86_64-pc-linux-gnu-gcc -m32 -L/emul/linux/x86/lib -L/emul/linux/x86/usr/lib -Iinclude -std=c99 -O3 -W -Wall -fPIC -c -o src/client.o src/client.c
x86_64-pc-linux-gnu-gcc -m32 -L/emul/linux/x86/lib -L/emul/linux/x86/usr/lib -Iinclude -std=c99 -O3 -W -Wall -fPIC -c -o src/codec.o src/codec.c
x86_64-pc-linux-gnu-gcc -m32 -L/emul/linux/x86/lib -L/emul/linux/x86/usr/lib -Iinclude -std=c99 -O3 -W -Wall -fPIC -c -o src/frame.o src/frame.c
x86_64-pc-linux-gnu-gcc -m32 -L/emul/linux/x86/lib -L/emul/linux/x86/usr/lib -Iinclude -std=c99 -O3 -W -Wall -fPIC -c -o src/opengl.o src/opengl.c
x86_64-pc-linux-gnu-gcc -m32 -L/emul/linux/x86/lib -L/emul/linux/x86/usr/lib -Iinclude -std=c99 -O3 -W -Wall -fPIC -c -o src/server.o src/server.c
x86_64-pc-linux-gnu-gcc -m32 -L/emul/linux/x86/lib -L/emul/linux/x86/usr/lib -Iinclude -std=c99 -O3 -W -Wall -fPIC -c -o src/stream.o src/stream.c
yasm -m amd64 -f elf -o src/arch/amd64/frame.o src/arch/amd64/frame.asm
src/stream.c: In function ‘seomStreamGet’:
src/stream.c:115: warning: comparison between signed and unsigned
x86_64-pc-linux-gnu-gcc -m32 -L/emul/linux/x86/lib -L/emul/linux/x86/usr/lib -shared -Wl,--as-needed -Wl,-soname,libseom.so.0 -o libseom.so src/buffer.o src/client.o src/codec.o src/frame.o src/opengl.o src/server.o src/stream.o src/arch/amd64/frame.o -ldl -lpthread
/usr/lib/gcc/x86_64-pc-linux-gnu/4.1.2/../../../../x86_64-pc-linux-gnu/bin/ld: i386:x86-64 architecture of input file `src/arch/amd64/frame.o' is incompatible with i386 output
collect2: ld returned 1 exit status
make: *** [libseom.so] Error 1
 * 
 * ERROR: x11-libs/seom-1.0.192 failed.
 * Call stack:
 *   ebuild.sh, line 1654:   Called dyn_compile
 *   ebuild.sh, line 990:   Called qa_call 'src_compile'
 *   ebuild.sh, line 44:   Called src_compile
 *   seom-1.0.192.ebuild, line 33:   Called die
 * 
 * emake failed
 * If you need support, post the topmost build error, and the call stack if relevant.
 * A complete build log is located at '/var/tmp/portage/x11-libs/seom-1.0.192/temp/build.log'.
 * This ebuild is from an overlay: '/usr/local/portage/'
 *