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authorBruno Haible <bruno@clisp.org>2012-02-25 01:39:34 +0100
committerBruno Haible <bruno@clisp.org>2012-02-25 01:39:34 +0100
commitf9788546de646fbc4f77bba502a8f815d4999bac (patch)
treec7038a3d001ecea7e604c9d70395b05cd6e4505f /m4/asinl.m4
parentc3c2a1f5229d1f9d534a15be700fab29a2d356fe (diff)
downloadgnulib-f9788546de646fbc4f77bba502a8f815d4999bac.tar.gz
asinl: Provide function definition on MSVC.
* m4/asinl.m4 (gl_FUNC_ASINL): Test also whether asinl can be used as a function pointer. * lib/math.in.h (asinl): Undefine if it does not exist as a function.
Diffstat (limited to 'm4/asinl.m4')
-rw-r--r--m4/asinl.m410
1 files changed, 7 insertions, 3 deletions
diff --git a/m4/asinl.m4 b/m4/asinl.m4
index bb5b68bb26..6ad2c16113 100644
--- a/m4/asinl.m4
+++ b/m4/asinl.m4
@@ -1,4 +1,4 @@
-# asinl.m4 serial 6
+# asinl.m4 serial 7
dnl Copyright (C) 2010-2012 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -22,8 +22,10 @@ AC_DEFUN([gl_FUNC_ASINL],
# define __NO_MATH_INLINES 1 /* for glibc */
#endif
#include <math.h>
+ long double (*funcptr) (long double) = asinl;
long double x;]],
- [[return asinl (x) > 1;]])],
+ [[return funcptr (x) > 1
+ || asinl (x) > 1;]])],
[gl_cv_func_asinl_no_libm=yes],
[gl_cv_func_asinl_no_libm=no])
])
@@ -39,8 +41,10 @@ AC_DEFUN([gl_FUNC_ASINL],
# define __NO_MATH_INLINES 1 /* for glibc */
#endif
#include <math.h>
+ long double (*funcptr) (long double) = asinl;
long double x;]],
- [[return asinl (x) > 1;]])],
+ [[return funcptr (x) > 1
+ || asinl (x) > 1;]])],
[gl_cv_func_asinl_in_libm=yes],
[gl_cv_func_asinl_in_libm=no])
LIBS="$save_LIBS"