migrating to 64 bit

Hi,
   I am migrating open source packages from redhat EL5 on 32 bit 
machines to 64 bit machines.
   I found a problem with some packages that now need the -m32 flag 
passed into gcc for
   the executable to work properly.

   w3c-libwww appears to not have the -m32 flag, and the linker, ld 
complains when I link to it with  a mix
   of files some built to run in 32 bit mode and some built 64 bit.

  Is there a way to configure  w3c-libwww for the 32 bit mode on a 64 
bit box?

thank you,
   bob schaefer
[email protected]