diff --git a/src/runtime/c/README b/src/runtime/c/README
index a48eb8909..61f4113be 100644
--- a/src/runtime/c/README
+++ b/src/runtime/c/README
@@ -42,6 +42,18 @@ interesting special configuration options.
 Pkg-config configuration files for the library are also provided.
 
 
+Note For Mac OSX users
+----------------------
+
+You have to comment out the following line in config.h:
+
+   #define HAVE_STATEMENT_EXPRESSIONS 1
+
+This has to be done AFTER you have called './configure', but before you call 'make'!
+
+(Tested on Mac OSX 10.8 Mountain Lion with XCode installed)
+
+
 STATUS
 ------