From 4cc02ac6526014ab46caabac8724ec7db0d49f9e Mon Sep 17 00:00:00 2001 From: Brian Gaeke Date: Wed, 21 Jul 2004 03:14:39 +0000 Subject: [PATCH] Add support for checking for isinf(). Patch contributed by Bill Wendling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15052 91177308-0d34-0410-b5e6-96231b3b80d8 --- autoconf/acinclude.m4 | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/autoconf/acinclude.m4 b/autoconf/acinclude.m4 index 364ecca5086..a157839f222 100644 --- a/autoconf/acinclude.m4 +++ b/autoconf/acinclude.m4 @@ -6282,3 +6282,17 @@ AC_SINGLE_CXX_CHECK([HAVE_STD_ISNAN_IN_CMATH], [ac_cv_func_std_isnan_in_cmath], using std::isnan; int foo(float f) {return isnan(f);}]) ]) +AC_DEFUN([AC_FUNC_ISINF],[ +AC_SINGLE_CXX_CHECK([HAVE_ISINF_IN_MATH_H], [ac_cv_func_isinf_in_math_h], + [isinf], [], + [#include + int foo(float f) {return isinf(f);}]) +AC_SINGLE_CXX_CHECK([HAVE_ISINF_IN_CMATH], [ac_cv_func_isinf_in_cmath], + [isinf], [], + [#include + int foo(float f) {return isinf(f);}]) +AC_SINGLE_CXX_CHECK([HAVE_STD_ISINF_IN_CMATH], [ac_cv_func_std_isinf_in_cmath], + [std::isinf], [], + [#include + using std::isinf; int foo(float f) {return isinf(f);}]) +]) -- 2.34.1