Portability and IPV6_ADD_MEMBERSHIP.

diff --git a/org.gridsite.core/src/mod_gridsite.c b/org.gridsite.core/src/mod_gridsite.c
index c89392d..cb65151 100644 (file)
--- a/org.gridsite.core/src/mod_gridsite.c
+++ b/org.gridsite.core/src/mod_gridsite.c
@@ -108,6 +108,12 @@
 
 #include "gridsite.h"
 
+#ifndef IPV6_ADD_MEMBERSHIP
+#ifdef  IPV6_JOIN_GROUP
+#define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP
+#endif
+#endif
+
 #ifndef UNSET
 #define UNSET -1
 #endif