Make SOVERSION change with every release.

Previously the SOVERSION was the year which indicated a stable ABI
within each year. It is highly unlikely that or ABI is that
stable. Hence we stop pretending that it is and change the version
with every release.

Gbp-Pq: Name 0006-Make-SOVERSION-change-with-every-release.patch

cmake/Modules/OpmCompile.cmake

@@ -40,7 +40,7 @@ macro (opm_compile opm)
   if (${opm}_SOURCES)
         add_library (${${opm}_TARGET} ${${opm}_LIBRARY_TYPE} ${${opm}_SOURCES})
         set_target_properties (${${opm}_TARGET} PROPERTIES
-          SOVERSION ${${opm}_VERSION_MAJOR}
+          SOVERSION ${${opm}_VERSION}
           VERSION ${${opm}_VERSION}
           LINK_FLAGS "${${opm}_LINKER_FLAGS_STR}"
           POSITION_INDEPENDENT_CODE TRUE