Public bug reported:
I'm testing stress-ng on FreeBSD and I noted some compile problems, if an older
compiler stack is used (normally it's a clang or gcc4.2.1 problem).
As maintainer of stree-ng port on FreeBSD
(http://www.freshports.org/benchmarks/stress-ng/), pushing patches to upstream
is one of my task. For that reason, a patch is provided; the goal is to extend
the compatibility of stress-ng with other Unixes or older Linux distros.
If floating point complex functions are missing (because the libm is not
STDC_IEC_559_COMPLEX compliant), this patch avoid to compile
stress_cpu_complex functions in a clean way, using the
__STDC_IEC_559_COMPLEX__ preprocessor definition.
The three functions stress_cpu_complex_double(),
stress_cpu_complex_float() and stress_cpu_complex_long_double() are not
compiled and executed. I'm not sure if it's done in the right way and
for that I need the review of the official maintainer.
** Affects: stress-ng (Ubuntu)
Importance: Undecided
Status: New
** Patch added: "The patch to check if floating-point complex functions are
provided by the C library"
https://bugs.launchpad.net/bugs/1500349/+attachment/4477319/+files/patch-complex
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https://bugs.launchpad.net/bugs/1500349
Title:
Complex conditional compilation
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