[Mesa-dev] [Bug 87137] Unable to build when configured with openmp and CFLAGS/LDFLAGS contain -fopenmp

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87137

            Bug ID: 87137
           Summary: Unable to build when configured with openmp and
                    CFLAGS/LDFLAGS contain -fopenmp
           Product: Mesa
           Version: 10.3
          Hardware: x86-64 (AMD64)
                OS: All
            Status: NEW
          Severity: trivial
          Priority: medium
         Component: Mesa core
          Assignee: mesa-dev at lists.freedesktop.org
          Reporter: chris.anderson2014 at yandex.com

For sometime now, I have a mythtv machine that I built using gentoo. I
sometimes update it and have noticed that for sometime that the build fails
when I enable openmp in gentoo;s use flags (does that mean it gets configured
with --openmp or something or other) and also add -fopenmp to the CFLAGS and
LDFLAGS.

The bug is here https://bugs.gentoo.org/show_bug.cgi?id=532020, which the
gentoo nazi's will probably reject because there is no line that contains my
CPU id but the solution for me is to add a define for:
extern int omp_get_num_threads();
 in src/mesa/swrast/s_aatritemp.h  
and the missing header in for  #include <omp.h>
in src/mesa/swrast/s_context.c and src/mesa/swrast/s_texcombine.c

I think that you need to add this with some goddamn ugly #if defined(...) 
nastyness, but I could be wrong.

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