Red Hat Bugzilla – Bug 744589
long double redirects unavailable in <math.h> and <complex.h> on ARM
Last modified: 2016-11-24 11:13:29 EST
Functions such as creall() and cimagl() are not available on ARM (reproduced with glibc-2.14-7), due to failing to meet these preprocessor conditions in complex.h:
#if (__STDC__ - 0 || __GNUC__ - 0) \
&& (!defined __NO_LONG_DOUBLE_MATH || defined __LDBL_COMPAT)
Packages which use these functions and use -Werror during build (such as libmpc) are failing to compile as a result.
The use of -Werror is indeed questionable, but this does seem to be a glibc bug. Probably this one: http://sourceware.org/bugzilla/show_bug.cgi?id=10103
I confirmed that Jakub's patch still hasn't been applied in glibc HEAD.
Created attachment 530394 [details]
This alternative fix was submitted by a Fedora-ARM contributor. Not sure if it is better or worse than Jakub's patch from 2009.
Please let us know how we can help this issue get fixed.
That is a bad idea, because then you penalize glibc quite a bit.
OK, thanks for the quick response. Is your 2009 patch the right way to go then? Would it help you if we rediff/retest that patch against current glibc?
This package has changed ownership in the Fedora Package Database. Reassigning to the new owner of this component.
Looks like this was fixed in the upstream sources on 11/4 and thus would be included in rawhide.
If this is still an issue, please reopen the report with further details as to why the upstream fix was insufficient.