On Fri, Dec 16, 2011 at 02:06:10AM -0700, T.C. Hollingsworth wrote:
> On Fri, Dec 16, 2011 at 1:51 AM, Mahdi Foladgar <folad...@gmail.com> wrote:
> > I have two computer installed FC16 on them. On the First FC16x86-64
> > installed and on the other FC16-i386 installed.
> > Can I compile some program on one and run on the other?
> > I want to compile my program on 64 bit os and run on 32bit os or vice versa.
>
> Programs compiled 32-bit will run just fine on 64-bit operating
> systems, so long as you have all the necessary 32-bit libraries.
> However, 64-bit binaries will not work on 32-bit systems. You can
> also compile 32-bit applications on 64-bit systems and vice versa, but
> you need a cross compiler setup which can be a PITA.
You don't need a cross compiler to compile 32-bit (i?86) applications on 64-bit
(x86_64) systems, x86_64 gcc supports both -m64 and -m32 compilation (but
i?86 gcc does not). You need the appropriate *-devel.i686 packages
installed though, but that is just sudo yum install away.
Jakub
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