I am trying to get ROS to compile with 32 bit (-m32) libraries on an 64 bit kernel. I am wondering two things
about the build:

1. Is there a way in one of my nodes to "inject" the -m32 compile option to all dependent packages when building my package? Or will
     I need to edit each individual package's CMake files to get the -m32 option in there?

2. I think the answer to the following is that it I'd have to do it myself, but I'll ask anyways:
       I need to still compile 64 bit ROS packages as well as my single 32 bit package. Is there a method in the build system already to allow
       both 32 bit and 64-bit compiled libraries to exist in a single ROS home?

2a. If the answer to the above is no(which I suspect it is after cursory examination), would the easiest option be to add a
       separate ROS install, get it to compile all the libraries as 32 bit(with whatever the answer to #1 would be), then use
       that install to compile my package? I don't have a ton of time to modify the build structure to allow both libraries to
       exist at the moment, so I'm looking for a quick and easy solution.

Any advice is greatly appreciated.

Thanks,

Jeff Hyams
RE2 Inc.
www.resquared.com