Compile 32bit on 64bit host

While setting up distcc, I ran into a problem. The server is running Fedora 12 64-bit, while the client is running Fedora 12 32-bit.

To make 32-bit binaries you need to add -m32 to the compile line, and install a couple of things on the server:

$ yum install glibc-devel.i686
$ yum install libgcc.i686
...
$ gcc test.c -o test -m32

Note: While sorting this problem I found a new friend: yum provides <filename>