64bit or 32bit

[petertohen]

I installed the 64 bit version of Mageia 5. Is it possible to compile and run a program as 32 bits? (dosbox-x only has dynamic x86 core implemented for 32 bits, it does not work with 64 bits.) There's a /usr/lib and /usr/lib64 directory for libraries and -m32 is a compiler flag for 32 bit, but how do the includes work? There's only one include directory.
http://www.mageia.org/en/5/

[jiml8]

It is certainly possible to do what you want to do. I, personally, don't know how to set it up, I just know it can be done. I think you have to treat it as a cross-compile and set up a cross-compile environment.

For myself, I just build a virtual machine that matches the profile that I wish to compile for, then compile on that VM. Ultimately, I find this to be a much simpler route and a great deal more flexible because I don't have to keep track of what target environment I am building for in my host environment.