enable madvise defines in netbsd

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk/program@1238 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/configure.ac b/configure.ac
index a889daa..7912436 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -49,6 +49,13 @@ AH_TOP([
 /* realloc does not support NULL as argument */
 #undef NO_NULL_REALLOC
 
+/* lets enable madvise defines in netbsd */ 
+#if defined(__NetBSD__)
+# if !defined(_NETBSD_SOURCE)
+#  define _NETBSD_SOURCE
+# endif
+#endif
+
  ])
 
 AH_BOTTOM([