cppbind: automatic conversion of SGReferenced derived pointers.

[simgear.git] / simgear / sound / sample_group.cxx

diff --git a/simgear/sound/sample_group.cxx b/simgear/sound/sample_group.cxx
index 33cf2bce4541e13d8caa61deb8fc57aee8948818..78efd1675efa71718e6956ba21d5208f1e24aae1 100644 (file)
--- a/simgear/sound/sample_group.cxx
+++ b/simgear/sound/sample_group.cxx
@@ -35,6 +35,10 @@
 
 using std::string;
 
+#ifdef HAVE_STD_ISNAN
+using std::isnan;
+#endif
+
 bool isNaN(float *v) {
    return (isnan(v[0]) || isnan(v[1]) || isnan(v[2]));
 }