| dnl $Id: ac_cxx_have_complex_math1.m4,v 1.2 2004/04/23 23:41:52 opetzold Exp $ |
| dnl |
| dnl Available from the GNU Autoconf Macro Archive at: |
| dnl http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_have_complex_math1.html |
| dnl |
| |
| AC_DEFUN([AC_CXX_HAVE_COMPLEX_MATH1], |
| [AC_CACHE_CHECK(whether the compiler has complex math functions, |
| ac_cv_cxx_have_complex_math1, |
| [AC_REQUIRE([AC_CXX_NAMESPACES]) |
| AC_LANG_PUSH([C++]) |
| ac_save_LIBS="$LIBS" |
| LIBS="$LIBS -lm" |
| AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <complex> |
| #ifdef HAVE_NAMESPACES |
| using namespace std; |
| #endif]], [[complex<double> x(1.0, 1.0), y(1.0, 1.0); |
| cos(x); cosh(x); exp(x); log(x); pow(x,1); pow(x,double(2.0)); |
| pow(x, y); pow(double(2.0), x); sin(x); sinh(x); sqrt(x); tan(x); tanh(x); |
| return 0;]])],[ac_cv_cxx_have_complex_math1=yes],[ac_cv_cxx_have_complex_math1=no]) |
| LIBS="$ac_save_LIBS" |
| AC_LANG_POP([C++]) |
| ]) |
| if test "$ac_cv_cxx_have_complex_math1" = yes; then |
| AC_DEFINE(HAVE_COMPLEX_MATH1,,[define if the compiler has complex math functions]) |
| fi |
| ]) |
