[Buildroot] [PATCH] toolchain-external: improve sysroot lookup with multilib

[Mike Frysinger <vapier@gentoo.org>]

On Monday, December 13, 2010 16:29:03 Thomas Petazzoni wrote:
> On Sun, 12 Dec 2010 11:25:25 -0500 Mike Frysinger wrote:
> > If the external toolchain we're using starts in a path other than
> > /usr/lib, the sysroot detection fails as it has /usr/lib hardcoded. 
> > Improve the code to strip out any lib suffixes to handle the most common
> > behavior.
> 
> Could you point me to a specific toolchain for which the problem is
> occuring ? Just to make it clear: I do believe that the problem exists
> and that the patch is useful in that case, I just want to be sure to
> understand it completely, and potentially add a new test case to my
> testing stuff.

Gentoo defaults x86_64 to lib64
$ gcc -print-file-name=libc.a
/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.4/../../../../lib64/libc.a
$ gcc -print-multi-os-directory
../lib64
-mike
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