[oe-issues] [Bug 2542] New: Allow glibc to build with i686

[bugzilla-daemon at tinman.treke.net]

http://bugs.openembedded.org/show_bug.cgi?id=2542

           Summary: Allow glibc to build with i686
           Product: Openembedded
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Build
        AssignedTo: openembedded-issues at lists.openembedded.org
        ReportedBy: jake at cogini.com
         QAContact: tinderbox-oe at gmx.net


Created an attachment (id=1656)
 --> (http://bugs.openembedded.org/attachment.cgi?id=1656)
Undefine __i686 when building glibc

When a toolchain is built to use i686 (e.g. 
with TARGET_CC_ARCH = -march=i686),
gcc defines a macro __i686, which conflicts with
the glibc build. 

This patch allows glibc 2.4 and 2.5 to build correctly with 
-march=i686.

It has no affect on my builds for i586, mipsel and arm. 

These links describe the details of the problem: 

http://bugs.gentoo.org/131108
http://sourceware.org/ml/libc-alpha/2006-04/msg00090.html


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