How to compile 32 and bit bit libraries on 64 bit system parallely

[Suresh Bhardwaj]

Hi!

    I have a 64 bit host machine. There are applications which are 64 
bit and some are 32 bit. How Can I compile 32 and 64 bit of log4cxx 
libraries to coexist on host machine.


*I can compile 32 bit library like:*

/CFLAGS=-m32//
//CPPFLAGS=-m32//
//CXXFLAGS=-m32//
//
//export CFLAGS CPPFLAGS CXXFLAGS//
//./configure//
//make install/

*and 32 bit library like*
/./configure//
//make install/


But how to compile both versions on same machine so that 32 bit 
application links to 32 bit version library and 64 bit application links 
to 32 bit version of the library on 64 bit linux host.

Regards,
Suresh