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[Bug math/17441] isnan() should use __builtin_isnan() in GCC
- From: "wdijkstr at arm dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Thu, 25 Feb 2016 11:54:54 +0000
- Subject: [Bug math/17441] isnan() should use __builtin_isnan() in GCC
- Auto-submitted: auto-generated
- References: <bug-17441-131 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=17441
--- Comment #5 from Wilco <wdijkstr at arm dot com> ---
(In reply to VladimÃr ÄunÃt from comment #4)
> Note: glibc 2.22 -> 2.23 is breaking quite a few package builds with `error:
> isnan was not declared in this scope`, most likely triggered by the commit
> fixing this ticket. (I don't really which of the sides is at fault.)
That's odd since isnan was always a macro and nothing has changed in that
respect. Do you have a small example?
Note there are ongoing issues with GCC6 and C++ headers, eg.
https://gcc.gnu.org/ml/gcc-patches/2016-02/msg00370.html - maybe related to
what you're seeing?
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