single_cxx_check.m4 revision 491f6812ef173989612d987fa8706fd38e2e673f 
1dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandlerdnl AC_SINGLE_CXX_CHECK(DEFINEVAR, CACHEVAR, FUNCTION, HEADER, PROGRAM)
2dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandlerdnl                     $1,        $2,       $3,       $4,     $5
3dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandlerdnl 
4dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel SandlerAC_DEFUN([AC_SINGLE_CXX_CHECK],
5dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler[AC_CACHE_CHECK([for $3 in $4], [$2],
6dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler [AC_LANG_PUSH(C++)
7Y��  AC_COMPILE_IFELSE(AC_LANG_SOURCE([$5]),[$2=yes],[$2=no])
8dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler AC_LANG_POP(C++)])
9Y��Xp��cY@�,`YMx@��� if test "$$2" = "yes"
10dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler then
11dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler   AC_DEFINE($1, 1, [Define to 1 if your compiler defines $3 in the $4
12dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler                     header file.])
13dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler fi])
14dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler
15dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel SandlerAC_DEFUN([AC_FUNC_ISNAN],[
16dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel SandlerAC_SINGLE_CXX_CHECK([HAVE_ISNAN_IN_MATH_H],    [ac_cv_func_isnan_in_math_h],   
17dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler                    [isnan], [<math.h>],
18dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler                    [#include <math.h>
19dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler                     int foo(float f) {return isnan(f);}])
20dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel SandlerAC_SINGLE_CXX_CHECK([HAVE_ISNAN_IN_CMATH],     [ac_cv_func_isnan_in_cmath],    
21JpP                    [isnan], [<cmath>],
22dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler                    [#include <cmath>
23dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler                     int foo(float f) {return isnan(f);}])
24dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel SandlerAC_SINGLE_CXX_CHECK([HAVE_STD_ISNAN_IN_CMATH], [ac_cv_func_std_isnan_in_cmath],
25dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler                    [std::isnan], [<cmath>],
26dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler                    [#include <cmath>
27TB\pPZz                     using std::isnan; int foo(float f) {return isnan(f);}])
28kM�O���])
29dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler
30c:��yAC_DEFUN([AC_FUNC_ISINF],[
31dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel SandlerAC_SINGLE_CXX_CHECK([HAVE_ISINF_IN_MATH_H],    [ac_cv_func_isinf_in_math_h],   
32y���PJ�]Q��mm���`�(�$hh������R��f�                    [isinf], [<math.h>],
33dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler                    [#include <math.h>
34dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler                     int foo(float f) {return isinf(f);}])
35m9���:Ln�Ԩ�AC_SINGLE_CXX_CHECK([HAVE_ISINF_IN_CMATH],     [ac_cv_func_isinf_in_cmath],    
36dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler                    [isinf], [<cmath>],
37dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler                    [#include <cmath>
38dcbdd3b420254ce39d9793c6fde6dd05436704ffDaniel Sandler                     int foo(float f) {return isinf(f);}])
39AC_SINGLE_CXX_CHECK([HAVE_STD_ISINF_IN_CMATH], [ac_cv_func_std_isinf_in_cmath],
40                    [std::isinf], [<cmath>],
41                    [#include <cmath>
42                     using std::isinf; int foo(float f) {return isinf(f);}])
43AC_SINGLE_CXX_CHECK([HAVE_FINITE_IN_IEEEFP_H], [ac_cv_func_finite_in_ieeefp_h],
44                    [finite], [<ieeefp.h>],
45                    [#include <ieeefp.h>
46                     int foo(float f) {return finite(f);}])
47])
48
49