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Re: Fwd: Compiling pgm for an older linux version - cross compiler
Jacques Greindl <jgreindl@gmail.com> writes:
> The older system is an embedded one --> no compiler on it (run on 2mb
> flash mem).
> I build this one a few years ago with an old linux desktop. And I
> don't have it anymore. But I have to make an upgrade for the embedded
> system...
You could recreate the old GNU/Linux system. Old GNU/Linux distros are
easy to find on the web.
> So I have to :
> 1- find the glibc version of my embedded system
> 2- install this version on my actual system without erasing my actual one (how?)
> 3- compile my sources with gcc and a parameter to specify this version (how?)
Building glibc is nontrivial. But the basic idea is to build and
install glibc with a specific --prefix option, and use that directory as
a --with-sysroot option when building GNU binutils and gcc.
Ian