svn commit: r253260 - head/lib/msun/src

[Raphael Kubo da Costa]

Raphael Kubo da Costa <rakuco at FreeBSD.org> writes:

> David Chisnall <theraven at FreeBSD.org> writes:
>
>> Author: theraven
>> Date: Fri Jul 12 11:03:51 2013
>> New Revision: 253260
>> URL: http://svnweb.freebsd.org/changeset/base/253260
>>
>> Log:
>>   Fix the build with C++ where __builtin_types_compatible_p is not allowed.
>>
>> Modified:
>>   head/lib/msun/src/math.h
>>
>> Modified: head/lib/msun/src/math.h
>> ==============================================================================
>> --- head/lib/msun/src/math.h	Fri Jul 12 10:07:48 2013	(r253259)
>> +++ head/lib/msun/src/math.h	Fri Jul 12 11:03:51 2013	(r253260)
>> @@ -81,12 +81,13 @@ extern const union __nan_un {
>>  #define	FP_SUBNORMAL	0x08
>>  #define	FP_ZERO		0x10
>>  
>> -#if __STDC_VERSION__ >= 201112L && defined(__clang__)
>> +#if (__STDC_VERSION__ >= 201112L && defined(__clang__)) || \
>> +    __has_extension(c_generic_selections)
>>  #define	__fp_type_select(x, f, d, ld) _Generic((x),     \
>>  	float: f(x),                                    \
>>  	double: d(x),                                   \
>>  	long double: ld(x))
>
> One of the things that's making cad/brlcad fail with clang is some C
> code that calls isnan() and isinf() with -std=gnu89, -Werror and
> -Wc11-extensions:

(To be fair, it's -pedantic that brings in -Wc11-extensions)