X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=config%2Flf_cxx.m4;fp=config%2Flf_cxx.m4;h=9465290b943541f313a7d4b5c9f9677742368180;hb=b78ae1de4d9bbde942e5e7556630d7ccd8161c30;hp=c2b3cd5399ccf31056e402a3860240ede81aa545;hpb=0cfd4875e519e2b1ee05d074f72ec67391ed13bf;p=debian%2Fgnuradio

diff --git a/config/lf_cxx.m4 b/config/lf_cxx.m4
index c2b3cd53..9465290b 100644
--- 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]) ],