lfs@AARICIA:/mnt/lfs/sources/binutils-build$ echo "int main(){}" | gcc -v -x c -
Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v --enable-languages=c,c++,fortran,objc,obj-c++,treelang --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --program-suffix=-4.1 --enable-__cxa_atexit --enable-clocale=gnu --enable-libstdcxx-debug --enable-mpfr --enable-checking=release i486-linux-gnu
Thread model: posix
gcc version 4.1.2 20060928 (prerelease) (Ubuntu 4.1.1-13ubuntu5)
 /usr/lib/gcc/i486-linux-gnu/4.1.2/cc1 -quiet -v - -quiet -dumpbase - -mtune=generic -auxbase - -version -fstack-protector -fstack-protector -o /tmp/ccG0XyrB.s
ignoring nonexistent directory "/usr/local/include/i486-linux-gnu"
ignoring nonexistent directory "/usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../i486-linux-gnu/include"
ignoring nonexistent directory "/usr/include/i486-linux-gnu"
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/include
 /usr/lib/gcc/i486-linux-gnu/4.1.2/include
 /usr/include
End of search list.
GNU C version 4.1.2 20060928 (prerelease) (Ubuntu 4.1.1-13ubuntu5) (i486-linux-gnu)
        compiled by GNU C version 4.1.2 20060928 (prerelease) (Ubuntu 4.1.1-13ubuntu5).
GGC heuristics: --param ggc-min-expand=81 --param ggc-min-heapsize=96946
Compiler executable checksum: 9dfacd053f7c05ab266630071b88af60
 as -V -Qy -o /tmp/ccUL3hH4.o /tmp/ccG0XyrB.s
GNU assembler version 2.15.94.0.2.2 (i686-pc-linux-gnu) using BFD version 2.15.94.0.2.2 20041220
 /usr/lib/gcc/i486-linux-gnu/4.1.2/collect2 --eh-frame-hdr -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 /usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../lib/crt1.o /usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../lib/crti.o /usr/lib/gcc/i486-linux-gnu/4.1.2/crtbegin.o -L/usr/lib/gcc/i486-linux-gnu/4.1.2 -L/usr/lib/gcc/i486-linux-gnu/4.1.2 -L/usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../lib -L/lib/../lib -L/usr/lib/../lib /tmp/ccUL3hH4.o -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /usr/lib/gcc/i486-linux-gnu/4.1.2/crtend.o /usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../lib/crtn.o
/tools/bin/ld:/usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../lib/libc.so: file format not recognized; treating as linker script
/tools/bin/ld:/usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../lib/libc.so:5: syntax error
collect2: ld returned 1 exit status