--- ./CMakeLists.txt.orig	2018-12-24 08:59:04.000000000 +0200
+++ ./CMakeLists.txt	2019-09-28 10:13:03.478085000 +0200
@@ -22,7 +22,7 @@
 #     Increment AGE. Set REVISION to 0
 #   If the source code was changed, but there were no interface changes:
 #     Increment REVISION.
-set(LIBRARY_VERSION "4.7.3")
+set(LIBRARY_VERSION "4")
 set(LIBRARY_SOVERSION "4")
 
 # where to look first for cmake modules, before ${CMAKE_ROOT}/Modules/ is checked
