Interplay of options -m32 and -march on x86_64 host

Ian Lance Taylor iant@google.com
Mon Sep 28 21:46:00 GMT 2009


Erik Leunissen <e.leunissen@hccnet.nl> writes:

> I'm compiling for a 32bit linux-x86 target on a linux-x86_64 host.
>
>      using: - the distribution supplied gcc (4.3.1)
>             - openSuSE linux 11.0
>
> In this configuration, gcc supports the option -m32 to do that.
>
> What I could not figure out is whether I can compile for a specific x86
> architecture, say i686, using the option -march=i686 in coombination
> with -m32.

Yes, you can.

Ian



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