--- src/libguess/Makefile.orig	Sat Dec  4 18:20:35 2010
+++ src/libguess/Makefile	Sat Dec  4 18:20:45 2010
@@ -1,6 +1,6 @@
 LIB = ${LIB_PREFIX}guess${LIB_SUFFIX}
-LIB_MAJOR = 1
-LIB_MINOR = 0
+LIB_MAJOR ?= 1
+LIB_MINOR ?= 0
 DISTCLEAN = autoconf.h
 
 SRCS = guess.c		\