Fix autodetection of cosl(), sinl()

Autoconf must have changed since we last looked. Thanks Åke Sandgren for the fix.
Cosinx · Nov 19, 2013 · 40f59a1 · 40f59a1
1 parent 7e66dc5
commit 40f59a1
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Showing 2 changed files with 7 additions and 3 deletions.
diff --git a/configure.ac b/configure.ac
@@ -402,7 +402,11 @@ fi
 AC_SUBST(LIBQUADMATH)
 
 AC_CHECK_FUNCS([BSDgettimeofday gettimeofday gethrtime read_real_time time_base_to_time drand48 sqrt memset posix_memalign memalign _mm_malloc _mm_free clock_gettime mach_absolute_time sysctl abort sinl cosl snprintf])
-AC_CHECK_DECLS([drand48, srand48, memalign, posix_memalign, sinl, cosl, sinq, cosq])
+AC_CHECK_DECLS([drand48, srand48, memalign, posix_memalign, sinl, cosl, sinq, cosq],,,[
+#include <math.h>
+#include <stdlib.h>
+#include <malloc.h>
+])
 
 dnl Cray UNICOS _rtc() (real-time clock) intrinsic
 AC_MSG_CHECKING([for _rtc intrinsic])

diff --git a/kernel/trig.c b/kernel/trig.c
@@ -27,10 +27,10 @@
 #  define COS cosl
 #  define SIN sinl
 #  define KTRIG(x) (x##L)
-#  ifndef HAVE_DECL_SINL
+#  if !HAVE_DECL_SINL
      extern long double sinl(long double x);
 #  endif
-#  ifndef HAVE_DECL_COSL
+#  if !HAVE_DECL_COSL
      extern long double cosl(long double x);
 #  endif
 #elif defined(TRIGREAL_IS_QUAD)