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author | Reid Spencer <rspencer@reidspencer.com> | 2004-10-27 23:03:44 +0000 |
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committer | Reid Spencer <rspencer@reidspencer.com> | 2004-10-27 23:03:44 +0000 |
commit | abec8f96e3e35fbb306c957674809c4ace04a620 (patch) | |
tree | 73a294a25458cd5c975ea83c7ab1fe5cf8dea050 /autoconf/m4/func_isnan.m4 | |
parent | 0b8d2f9706743418cf97ff3837465de77fa8d781 (diff) | |
download | llvm-abec8f96e3e35fbb306c957674809c4ace04a620.tar.gz llvm-abec8f96e3e35fbb306c957674809c4ace04a620.tar.bz2 llvm-abec8f96e3e35fbb306c957674809c4ace04a620.tar.xz |
Changes to support rand48 tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17284 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'autoconf/m4/func_isnan.m4')
-rw-r--r-- | autoconf/m4/func_isnan.m4 | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/autoconf/m4/func_isnan.m4 b/autoconf/m4/func_isnan.m4 index 8e626fe15b..eb5ca0daeb 100644 --- a/autoconf/m4/func_isnan.m4 +++ b/autoconf/m4/func_isnan.m4 @@ -3,16 +3,25 @@ # platform. # AC_DEFUN([AC_FUNC_ISNAN],[ -AC_SINGLE_CXX_CHECK([HAVE_ISNAN_IN_MATH_H], [ac_cv_func_isnan_in_math_h], +AC_SINGLE_CXX_CHECK([ac_cv_func_isnan_in_math_h], [isnan], [<math.h>], - [#include <math.h> - int foo(float f) {return isnan(f);}]) -AC_SINGLE_CXX_CHECK([HAVE_ISNAN_IN_CMATH], [ac_cv_func_isnan_in_cmath], + [float f; isnan(f);]) + +if test "$ac_cv_func_isnan_in_math_h" = "yes" ; then + AC_DEFINE([HAVE_ISNAN_IN_MATH_H],1,[Set to 1 if the isnan function is found in <math.h>]) +fi + +AC_SINGLE_CXX_CHECK([ac_cv_func_isnan_in_cmath], [isnan], [<cmath>], - [#include <cmath> - int foo(float f) {return isnan(f);}]) -AC_SINGLE_CXX_CHECK([HAVE_STD_ISNAN_IN_CMATH], [ac_cv_func_std_isnan_in_cmath], + [float f; isnan(f);]) +if test "$ac_cv_func_isnan_in_cmath" = "yes" ; then + AC_DEFINE([HAVE_ISNAN_IN_CMATH],1,[Set to 1 if the isnan function is found in <cmath>]) +fi + +AC_SINGLE_CXX_CHECK([ac_cv_func_std_isnan_in_cmath], [std::isnan], [<cmath>], - [#include <cmath> - using std::isnan; int foo(float f) {return isnan(f);}]) + [float f; std::isnan(f);]) +if test "$ac_cv_func_std_isnan_in_cmath" = "yes" ; then + AC_DEFINE([HAVE_STD_ISNAN_IN_CMATH],1,[Set to 1 if the std::isnan function is found in <cmath>]) +fi ]) |