[patch #8550] AX_OPENMP: Prevent false negative due to -Wunused-variable

[Moritz Klammler]

URL:
  <http://savannah.gnu.org/patch/?8550>

                 Summary: AX_OPENMP: Prevent false negative due to
-Wunused-variable
                 Project: GNU Autoconf Archive
            Submitted by: moritz_klammler
            Submitted on: Wed 08 Oct 2014 07:39:29 PM GMT
                Priority: 5 - Normal
                  Status: None
             Assigned to: None
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any

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Details:

If using GCC with CFLAGS='-Wall -Wextra -Werror', the macro AX_OPENMP will
trigger a fatal compiler warning about an unused local variable which will
erroneously be taken as a sign that the compiler has no OpenMP support.  The
attached patch fixes this by moving the OpenMP code into a function that is
called from main.

I have also run autoupdate over the macro.




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File Attachments:


-------------------------------------------------------
Date: Wed 08 Oct 2014 07:39:29 PM GMT  Name: ax_openmp.m4  Size: 4kB   By:
moritz_klammler

<http://savannah.gnu.org/patch/download.php?file_id=32247>
-------------------------------------------------------
Date: Wed 08 Oct 2014 07:39:29 PM GMT  Name: ax_openmp.m4.patch  Size: 1kB  
By: moritz_klammler

<http://savannah.gnu.org/patch/download.php?file_id=32248>

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