$NetBSD: patch-ae,v 1.6 2011/11/21 01:35:29 marino Exp $

--- speech_tools/include/EST_math.h.orig	2011-11-20 22:34:00.490181000 +0000
+++ speech_tools/include/EST_math.h
@@ -111,6 +111,15 @@ extern "C" {
 
 #endif
 
+#if defined(__DragonFly__)
+#define isnanf(X) __isnanf(X)
+#endif
+
+/* The g++-3.3.6 <cmath> header undefines the macro isnan, but shouldn't. */
+#if !defined(isnan) && defined(__fpmacro_unary_floating)
+#define isnan(X) __fpmacro_unary_floating(isnan, (X))
+#endif
+
 /* Cygwin (at least cygwin 1.7 with gcc 4.3.4) */ 
 #if defined(__CYGWIN__)
 #if __GNUG__ > 3