diff --git a/lib/Makefile.inc b/lib/Makefile.inc
new file mode 100644
index 000000000000..62677fda48f3
--- /dev/null
+++ b/lib/Makefile.inc
@@ -0,0 +1,3 @@
+# Default version for system libs (override in <lib>/Makefile if necessary)
+SHLIB_MAJOR?= 2
+SHLIB_MINOR?= 0