patchGNU Autoconf Archive - Patches: patch #7978, AX_GCC_ARCHFLAG: fix wrong CPU...


patch #7978: AX_GCC_ARCHFLAG: fix wrong CPU detection

Submitter:  None
Submitted:  Mon 25 Mar 2013 02:29:57 AM UTC
Priority:  7 - High Status:  Done
Assigned to:  simons Originator Email:  -email is unavailable-
Open/Closed:  Closed
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Mon 25 Mar 2013 11:33:49 AM UTC, comment #1: 

Pushed in 97fcecaa79ceacbd2c37cf594bdbe44d10309c85. Thank you very much for the patch.

Peter Simons <simons>
Group administrator
Mon 25 Mar 2013 02:29:57 AM UTC, original submission:

When I wrote the patch above, I didn't know that AX_GCC_X86_CPUID macro does not guarantee that its result is always 4*8-digit. Actually, result of AX_GCC_X86_CPUID does not contain leading zeroes and number of digits may vary.
As a result, I broke AX_GCC_ARCHFLAG for most of AMD processors and older Intel processors.
This patch will fix this issue by changing case patterns.

To make sure this issue is fixed correctly, I tested the script using CPUID dumps available at

Sorry for breaking a macro and I hope this fix will be helpful.



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file #27672:  0001-AX_GCC_ARCHFLAG-fix-wrong-CPU-detection.patch added by None (4KiB - application/octet-stream)


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  • -email is unavailable- added by simons (Posted a comment)

    Follow 5 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2013-04-04 simons StatusReady For Test Done
        Open/ClosedOpen Closed
    2013-03-25 simons StatusNone Ready For Test
        Assigned toNone simons
    2013-03-25 None Attached File- Added 0001-AX_GCC_ARCHFLAG-fix-wrong-CPU-detection.patch, #27672

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