diff --git a/src/unix/gsocket.cpp b/src/unix/gsocket.cpp
index dd874ef757..aeed5804a5 100644
--- a/src/unix/gsocket.cpp
+++ b/src/unix/gsocket.cpp
@@ -126,6 +126,16 @@ int _System soclose(int);
 #define SOCKOPTLEN_T SOCKLEN_T
 #endif
 
+/*
+ * OSX 10.2 has int args instead of SOCKLENXXX_T
+ */
+#if defined( __WXMAC__ ) && ( MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_2 )
+#undef SOCKOPTLEN_T 
+#undef SOCKLEN_T
+#define SOCKOPTLEN_T int
+#define SOCKLEN_T int
+#endif
+
 /*
  * MSW defines this, Unices don't.
  */