projects/sample: Import adapted form of current LLVM autoconf/Makefile setup so that...
[oota-llvm.git] / projects / sample / autoconf / m4 / func_isinf.m4
1 #
2 # This function determins if the the isinf function isavailable on this
3 # platform.
4 #
5 AC_DEFUN([AC_FUNC_ISINF],[
6 AC_SINGLE_CXX_CHECK([ac_cv_func_isinf_in_math_h],   
7                     [isinf], [<math.h>],
8                     [float f; isinf(f);])
9 if test "$ac_cv_func_isinf_in_math_h" = "yes" ; then 
10   AC_DEFINE([HAVE_ISINF_IN_MATH_H],1,[Set to 1 if the isinf function is found in <math.h>])
11 fi
12
13 AC_SINGLE_CXX_CHECK([ac_cv_func_isinf_in_cmath],    
14                     [isinf], [<cmath>],
15                     [float f; isinf(f);])
16 if test "$ac_cv_func_isinf_in_cmath" = "yes" ; then
17   AC_DEFINE([HAVE_ISINF_IN_CMATH],1,[Set to 1 if the isinf function is found in <cmath>])
18 fi
19
20 AC_SINGLE_CXX_CHECK([ac_cv_func_std_isinf_in_cmath],
21                     [std::isinf], [<cmath>],
22                     [float f; std::isinf(f)}])
23 if test "$ac_cv_func_std_isinf_in_cmath" = "yes" ; then 
24   AC_DEFINE([HAVE_STD_ISINF_IN_CMATH],1,[Set to 1 if the std::isinf function is found in <cmath>])
25 fi
26
27 AC_SINGLE_CXX_CHECK([ac_cv_func_finite_in_ieeefp_h],
28                     [finite], [<ieeefp.h>],
29                     [float f; finite(f);])
30 if test "$ac_cv_func_finite_in_ieeefp_h" = "yes" ; then
31   AC_DEFINE([HAVE_FINITE_IN_IEEEFP_H],1,[Set to 1 if the finite function is found in <ieeefp.h>])
32 fi
33
34 ])
35
36