$OpenBSD: patch-src_analysis_interpolation_qgstininterpolator_cpp,v 1.3 2010/05/23 17:50:56 espie Exp $
--- src/analysis/interpolation/qgstininterpolator.cpp.orig	Sun Nov 22 15:41:00 2009
+++ src/analysis/interpolation/qgstininterpolator.cpp	Sun May 23 19:46:46 2010
@@ -36,6 +36,11 @@
 #include <float.h>
 #define isnan(f) _isnan(f)
 #endif
+#if __GNUC__ >= 4
+using std::isnan;
+#else
+using __gnu_cxx::isnan;
+#endif
 
 QgsTINInterpolator::QgsTINInterpolator( const QList<LayerData>& inputData, TIN_INTERPOLATION interpolation, bool showProgressDialog ): QgsInterpolator( inputData ), mTriangulation( 0 ), \
     mTriangleInterpolator( 0 ), mIsInitialized( false ), mShowProgressDialog( showProgressDialog ), mExportTriangulationToFile( false ), mInterpolation( interpolation )
