matthew@matthew-laptop:~$ gcc untitled
untitled: In function `_start':
(.text+0x0): multiple definition of `_start'
/usr/lib/gcc/i486-linux-gnu/4.1.3/../../../../lib/crt1.o:(.text+0x0): first defined here
untitled:(.rodata+0x0): multiple definition of `_fp_hw'
/usr/lib/gcc/i486-linux-gnu/4.1.3/../../../../lib/crt1.o:(.rodata+0x0): first defined here
untitled: In function `_fini':
/build/buildd/glibc-2.6.1/build-tree/i386-libc/csu/crti.S:41: multiple definition of `_fini'
/usr/lib/gcc/i486-linux-gnu/4.1.3/../../../../lib/crti.o:/build/buildd/glibc-2.6.1/build-tree/i386-libc/csu/crti.S:41: first defined here
untitled:(.rodata+0x4): multiple definition of `_IO_stdin_used'
/usr/lib/gcc/i486-linux-gnu/4.1.3/../../../../lib/crt1.o:(.rodata.cst4+0x0): first defined here
untitled: In function `__data_start':
(.data+0x0): multiple definition of `__data_start'
/usr/lib/gcc/i486-linux-gnu/4.1.3/../../../../lib/crt1.o:(.data+0x0): first defined here
untitled: In function `__data_start':
(.data+0x4): multiple definition of `__dso_handle'
/usr/lib/gcc/i486-linux-gnu/4.1.3/crtbegin.o:(.data+0x0): first defined here
untitled: In function `_init':
/build/buildd/glibc-2.6.1/build-tree/i386-libc/csu/crti.S:15: multiple definition of `_init'
/usr/lib/gcc/i486-linux-gnu/4.1.3/../../../../lib/crti.o:/build/buildd/glibc-2.6.1/build-tree/i386-libc/csu/crti.S:15: first defined here
/usr/bin/ld: warning: Cannot create .eh_frame_hdr section, --eh-frame-hdr ignored.
/usr/bin/ld: error in untitled(.eh_frame); no .eh_frame_hdr table will be created.
collect2: ld returned 1 exit status