hi.c:1:20: warning: extra tokens at end of #include directive
/usr/lib/gcc/i486-slackware-linux/3.4.6/../../../crt1.o(.text+0x18): In function `_start':
../sysdeps/i386/elf/start.S:115: undefined reference to `main'
collect2: ld returned 1 exit status
make: *** [hi] Error 1