Imported Upstream version 3.0.3

[debian/gnuradio] / config / lf_cxx.m4

diff --git a/config/lf_cxx.m4 b/config/lf_cxx.m4
index c2b3cd5399ccf31056e402a3860240ede81aa545..9465290b943541f313a7d4b5c9f9677742368180 100644 (file)
--- a/config/lf_cxx.m4
+++ b/config/lf_cxx.m4
@@ -85,7 +85,7 @@ AC_DEFUN([LF_CXX_PORTABILITY],[
 
   dnl Test whether C++ has std::isnan
   AC_MSG_CHECKING(whether C++ has std::isnan)
-  AC_TRY_COMPILE([#include <math.h>], [
+  AC_TRY_COMPILE([#include <cmath>], [
    std::isnan(0);
 ], [ AC_MSG_RESULT(yes)
        AC_DEFINE(CXX_HAS_STD_ISNAN,[],[Define if has std::isnan]) ],