--- a/common/autoconf/spec.gmk.in	Wed Jul 05 18:41:33 2017 +0200
+++ b/common/autoconf/spec.gmk.in	Thu Feb 21 14:16:56 2013 +0100
@@ -283,7 +283,7 @@
 OPENWIN_HOME:=@OPENWIN_HOME@
 
 # The lowest required version of macosx to enforce compatiblity for
-MACOSX_REQUIRED_VERSION=@MACOSX_REQUIRED_VERSION@
+MACOSX_VERSION_MIN=@MACOSX_VERSION_MIN@
 
 # There are two types: CC or CL
 # CC is gcc and others behaving reasonably similar.