# gcc-3.4 -m32 -o conftest -g -O2 -isystem /usr/src/glibc/glibc-2.3.6/debian/include test.c
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/3.4.6/../../../libc.so when searching for -lc
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/3.4.6/../../../libc.a when searching for -lc
/usr/bin/ld: skipping incompatible /usr/bin/../lib/libc.so when searching for -lc
/usr/bin/ld: skipping incompatible /usr/bin/../lib/libc.a when searching for -lc
/usr/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc
/usr/bin/ld: skipping incompatible /usr/lib/libc.a when searching for -lc
/usr/bin/ld: cannot find -lc
collect2: ld returned 1 exit status