fallo al compilar

[minette1988]

He compilado como me has dicho gcc ./ejer_fichero_6 y me sale esto:

./ejer_fichero_6: In function `_start':
/build/buildd/glibc-2.9/csu/../sysdeps/i386/elf/start.S:65: multiple definition of `_start'
/usr/lib/gcc/i486-linux-gnu/4.3.3/../../../../lib/crt1.o:/build/buildd/glibc-2.9/csu/../sysdeps/i386/elf/start.S:65: first defined here
./ejer_fichero_6:(.rodata+0x0): multiple definition of `_fp_hw'
/usr/lib/gcc/i486-linux-gnu/4.3.3/../../../../lib/crt1.o:(.rodata+0x0): first defined here
./ejer_fichero_6: In function `_fini':
/build/buildd/glibc-2.9/csu/../sysdeps/generic/initfini.c:109: multiple definition of `_fini'
/usr/lib/gcc/i486-linux-gnu/4.3.3/../../../../lib/crti.o:/build/buildd/glibc-2.9/csu/../sysdeps/generic/initfini.c:109: first defined here
./ejer_fichero_6:(.rodata+0x4): multiple definition of `_IO_stdin_used'
/usr/lib/gcc/i486-linux-gnu/4.3.3/../../../../lib/crt1.o:(.rodata.cst4+0x0): first defined here
./ejer_fichero_6: In function `__data_start':
(.data+0x0): multiple definition of `__data_start'
/usr/lib/gcc/i486-linux-gnu/4.3.3/../../../../lib/crt1.o:(.data+0x0): first defined here
./ejer_fichero_6: In function `__data_start':
(.data+0x4): multiple definition of `__dso_handle'
/usr/lib/gcc/i486-linux-gnu/4.3.3/crtbegin.o:(.data+0x0): first defined here
./ejer_fichero_6: In function `_init':
/build/buildd/glibc-2.9/build-tree/i386-libc/csu/crti.S:15: multiple definition of `_init'
/usr/lib/gcc/i486-linux-gnu/4.3.3/../../../../lib/crti.o:/build/buildd/glibc-2.9/build-tree/i386-libc/csu/crti.S:15: first defined here
/usr/lib/gcc/i486-linux-gnu/4.3.3/crtend.o:(.dtors+0x0): multiple definition of `__DTOR_END__'
./ejer_fichero_6:(.dtors+0x4): first defined here
collect2: ld devolvió el estado de salida 1
¿Qué significa todo esto?