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--- a/src/mk/localdefs.in
+++ b/src/mk/localdefs.in
@@ -9,6 +9,8 @@
 INCICONV=@INCICONV@
 
 LIBFAM = @LIBFAM@
+
+RCLLIBVERSION=@RCLLIBVERSION@
 
 X_CFLAGS=@X_CFLAGS@
 X_PRE_LIBS=@X_PRE_LIBS@