Check for existence of sincos

It apparently doesn't exist everywhere.

https://bugzilla.gnome.org/show_bug.cgi?id=745578
This commit is contained in:
Matthias Clasen 2015-03-04 06:30:13 -05:00
parent 71bd1c7e2c
commit 17bc7aaefd
2 changed files with 12 additions and 1 deletions

View File

@ -826,7 +826,7 @@ AC_TYPE_UID_T
# Check for round(), rint(), isnan(), isinf() and nearbyint()
AC_CHECK_LIB(m,round,,)
AC_CHECK_FUNCS(round rint nearbyint)
AC_CHECK_FUNCS(round rint nearbyint sincos)
AC_CHECK_DECLS([isnan, isinf], [], [], [[#include <math.h>]])
# Checks for gdkspawn

View File

@ -36,6 +36,8 @@
*/
#define _GNU_SOURCE
#include "config.h"
#include <math.h>
#include <stdlib.h>
#include <string.h>
@ -47,6 +49,15 @@
#define VERTICES_PER_TOOTH 34
#define GEAR_VERTEX_STRIDE 6
#ifndef HAVE_SINCOS
static void
sincos (double x, double *_sin, double *_cos)
{
*_sin = sin (x);
*_cos = cos (x);
}
#endif
/**
* Struct describing the vertices in triangle strip
*/