Cannot Compile Assembly on my Mac!

$ gcc -m32 hw3.c -o hw3
Undefined symbols:
  "i", referenced from:
      _main in ccuNMbgT.o
      _main in ccuNMbgT.o
     (maybe you meant: _i, _main , cstring=hey, supposed to supply an in开发者_开发技巧teger argument , cstring=after multiply, value is %d
 , _i$non_lazy_ptr , _printf , _environ , _atoi , _exit )
ld: symbol(s) not found
collect2: ld returned 1 exit status

I'm doing assembly with some C. I'm trying to compile an example that worked on Ubuntu compiled using gcc, but its not working on my Mac terminal.

It told you the problem and gave you the solution ("maybe you meant: ..."). Whether C symbols get underscores prepended to them in assembler is one of those things that is highly platform-dependent; on OS X they do, so when referring to a variable named "i" in C you must call it "_i" in assembler.