| Reid Spencer | b15e69a | 2004-09-07 06:56:14 +0000 | [diff] [blame^] | 1 | dnl AC_SINGLE_CXX_CHECK(DEFINEVAR, CACHEVAR, FUNCTION, HEADER, PROGRAM) |
| 2 | dnl $1, $2, $3, $4, $5 |
| 3 | dnl |
| 4 | AC_DEFUN([AC_SINGLE_CXX_CHECK], |
| 5 | [AC_CACHE_CHECK([for $3 in $4], [$2], |
| 6 | [AC_LANG_PUSH(C++) |
| 7 | AC_COMPILE_IFELSE(AC_LANG_SOURCE([$5]),[$2=yes],[$2=no]) |
| 8 | AC_LANG_POP(C++)]) |
| 9 | if test "$$2" = "yes" |
| 10 | then |
| 11 | AC_DEFINE($1, 1, [Define to 1 if your compiler defines $3 in the $4 |
| 12 | header file.]) |
| 13 | fi]) |
| 14 | |
| 15 | AC_DEFUN([AC_FUNC_ISNAN],[ |
| 16 | AC_SINGLE_CXX_CHECK([HAVE_ISNAN_IN_MATH_H], [ac_cv_func_isnan_in_math_h], |
| 17 | [isnan], [<math.h>], |
| 18 | [#include <math.h> |
| 19 | int foo(float f) {return isnan(f);}]) |
| 20 | AC_SINGLE_CXX_CHECK([HAVE_ISNAN_IN_CMATH], [ac_cv_func_isnan_in_cmath], |
| 21 | [isnan], [<cmath>], |
| 22 | [#include <cmath> |
| 23 | int foo(float f) {return isnan(f);}]) |
| 24 | AC_SINGLE_CXX_CHECK([HAVE_STD_ISNAN_IN_CMATH], [ac_cv_func_std_isnan_in_cmath], |
| 25 | [std::isnan], [<cmath>], |
| 26 | [#include <cmath> |
| 27 | using std::isnan; int foo(float f) {return isnan(f);}]) |
| 28 | ]) |
| 29 | |
| 30 | AC_DEFUN([AC_FUNC_ISINF],[ |
| 31 | AC_SINGLE_CXX_CHECK([HAVE_ISINF_IN_MATH_H], [ac_cv_func_isinf_in_math_h], |
| 32 | [isinf], [<math.h>], |
| 33 | [#include <math.h> |
| 34 | int foo(float f) {return isinf(f);}]) |
| 35 | AC_SINGLE_CXX_CHECK([HAVE_ISINF_IN_CMATH], [ac_cv_func_isinf_in_cmath], |
| 36 | [isinf], [<cmath>], |
| 37 | [#include <cmath> |
| 38 | int foo(float f) {return isinf(f);}]) |
| 39 | AC_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);}]) |
| 43 | AC_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 | |