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rtapi_math: drop unneeded gcc version check

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As documented at http://wiki.linuxcnc.org/cgi-bin/wiki.pl?MinimumSoftwareVersions
the oldest platform we're likely to target with linuxcnc 2.7 is Ubuntu 10.04
with gcc 4.4.
This commit is contained in:
Jeff Epler 2014-08-20 07:23:37 -05:00
parent ec38ac4566
commit fdb2d643d1
1 changed files with 0 additions and 15 deletions
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15
src/rtapi/rtapi_math.h
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@ -46,22 +46,7 @@ extern double floor(double);
#define M_PI 3.1415926535897932384626433832795029 /* pi */
#endif
#ifndef __GNUC_PREREQ
/* Convenience macro to test the versions of glibc and gcc. */
/* taken from include/features.h */
#if defined __GNUC__ && defined __GNUC_MINOR__
# define __GNUC_PREREQ(maj, min) \
((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
#else
# define __GNUC_PREREQ(maj, min) 0
#endif
#endif /* __GNUC_PREREQ */
#if __GNUC_PREREQ(4,4)
#define isinf(x) __builtin_isinf((x))
#else
#define isinf(x) ({ double v=((x)); !isnan(v) && isnan(v-v); })
#endif
#ifdef __i386__
#include "rtapi_math_i386.h"