diff --git a/winsup/mingw/ChangeLog b/winsup/mingw/ChangeLog
index 12768938a..4936b381f 100644
--- a/winsup/mingw/ChangeLog
+++ b/winsup/mingw/ChangeLog
@@ -1,3 +1,7 @@
+2004-07-15  Danny Smith  <dannysmith@users.sourceforge.net>
+
+	* include/math.h: Add pragma GCC system_header.
+
 2004-07-15  Danny Smith  <dannysmith@users.sourceforge.net>
 
 	* mingwex/complex/cargs.c: New file.
diff --git a/winsup/mingw/include/math.h b/winsup/mingw/include/math.h
index 68ba5c752..abcd6a4b8 100644
--- a/winsup/mingw/include/math.h
+++ b/winsup/mingw/include/math.h
@@ -8,9 +8,14 @@
  *
  */
 
+
 #ifndef _MATH_H_
 #define _MATH_H_
 
+#if __GNUC__ >= 3
+#pragma GCC system_header
+#endif
+
 /* All the headers include this file. */
 #include <_mingw.h>