diff options
Diffstat (limited to 'llvm/autoconf/m4/func_isinf.m4')
| -rw-r--r-- | llvm/autoconf/m4/func_isinf.m4 | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/llvm/autoconf/m4/func_isinf.m4 b/llvm/autoconf/m4/func_isinf.m4 index dc0c22e9258..c372dd8578b 100644 --- a/llvm/autoconf/m4/func_isinf.m4 +++ b/llvm/autoconf/m4/func_isinf.m4 @@ -3,22 +3,34 @@ # platform. # AC_DEFUN([AC_FUNC_ISINF],[ -AC_SINGLE_CXX_CHECK([HAVE_ISINF_IN_MATH_H], [ac_cv_func_isinf_in_math_h], +AC_SINGLE_CXX_CHECK([ac_cv_func_isinf_in_math_h], [isinf], [<math.h>], - [#include <math.h> - int foo(float f) {return isinf(f);}]) -AC_SINGLE_CXX_CHECK([HAVE_ISINF_IN_CMATH], [ac_cv_func_isinf_in_cmath], + [float f; isinf(f);]) +if test "$ac_cv_func_isinf_in_math_h" = "yes" ; then + AC_DEFINE([HAVE_ISINF_IN_MATH_H],1,[Set to 1 if the isinf function is found in <math.h>]) +fi + +AC_SINGLE_CXX_CHECK([ac_cv_func_isinf_in_cmath], [isinf], [<cmath>], - [#include <cmath> - int foo(float f) {return isinf(f);}]) -AC_SINGLE_CXX_CHECK([HAVE_STD_ISINF_IN_CMATH], [ac_cv_func_std_isinf_in_cmath], + [float f; isinf(f);]) +if test "$ac_cv_func_isinf_in_cmath" = "yes" ; then + AC_DEFINE([HAVE_ISINF_IN_CMATH],1,[Set to 1 if the isinf function is found in <cmath>]) +fi + +AC_SINGLE_CXX_CHECK([ac_cv_func_std_isinf_in_cmath], [std::isinf], [<cmath>], - [#include <cmath> - using std::isinf; int foo(float f) {return isinf(f);}]) -AC_SINGLE_CXX_CHECK([HAVE_FINITE_IN_IEEEFP_H], [ac_cv_func_finite_in_ieeefp_h], + [float f; std::isinf(f)}]) +if test "$ac_cv_func_std_isinf_in_cmath" = "yes" ; then + AC_DEFINE([HAVE_STD_ISINF_IN_CMATH],1,[Set to 1 if the std::isinf function is found in <cmath>]) +fi + +AC_SINGLE_CXX_CHECK([ac_cv_func_finite_in_ieeefp_h], [finite], [<ieeefp.h>], - [#include <ieeefp.h> - int foo(float f) {return finite(f);}]) + [float f; finite(f);]) +if test "$ac_cv_func_finite_in_ieefp_h" = "yes" ; then + AC_DEFINE([HAVE_FINITE_IN_IEEFP_H],1,[Set to 1 if the finite function is found in <ieeefp.h>]) +fi + ]) |
