patchGNU Autoconf Archive - Patches: patch #7320, AX_BLAS: AC_CHECK_FUNC autocaching...

 
 

patch #7320: AX_BLAS: AC_CHECK_FUNC autocaching makes problems

Submitter:  Jaroslav Hajek <highegg>
Submitted:  Mon 20 Sep 2010 06:31:45 AM UTC
   
 
Priority:  5 - Normal Status:  Done
Assigned to:  simons Open/Closed:  Closed
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Fri 24 Sep 2010 07:13:02 PM UTC, comment #2: 

Applied in f4fa3496237868e4a27506d226803afb0d45d7e2. Thank you very much!

Peter Simons <simons>
Group administrator
Tue 21 Sep 2010 05:27:13 AM UTC, comment #1: 

Thanks for Steven's suggestion. Here's an updated version that also calls AC_MSG_RESULT after the tests.


(file #21513)

Jaroslav Hajek <highegg>
Mon 20 Sep 2010 06:31:45 AM UTC, original submission:  

Hello,

In AX_BLAS, AC_CHECK_FUNC is used to check for SGEMM. The problem is that AC_CHECK_FUNC autocaches its result, but the LIBS are being manipulated, so the cache is not valid after the test and can fool subsequent tests. For a real occurrence of the problem, see https://savannah.gnu.org/bugs/index.php?31046

The attached patch replaces AC_CHECK_FUNC calls by AC_TRY_LINK_FUNC, which does not autocache.



Jaroslav Hajek <highegg>

 

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    Follow 6 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2010-09-24 simons StatusNone Done
        Assigned toNone simons
        Open/ClosedOpen Closed
    2010-09-21 highegg Attached File- Added 0002-avoid-caching-issues-in-ax_blas.m4.patch, #21513
    2010-09-20 highegg Attached File- Added 0001-avoid-caching-issues-in-ax_blas.m4.patch, #21505
        Carbon-Copy- Added steven g. johnson <stevenj@alum.mit.edu>

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