[问题]g77报错 undefined reference to `MAIN__'

[rcxy]

/usr/lib/gcc/i486-linux-gnu/3.4.6/../../../../lib/libfrtbegin.a(frtbegin.o): In function `main':
(.text+0x35): undefined reference to `MAIN__'
collect2: ld returned 1 exit status

解决方法?????