makefile: warn when Makefile needs to be regenerated

diff --git a/Makefile.in b/Makefile.in
index 6396d8d331db94fad048497adcc0090ef3813f14..557e2f41b17885a7d4410a320e7c915c55fff076 100644 (file)
--- a/Makefile.in
+++ b/Makefile.in
@@ -150,6 +150,12 @@ chrony.html : chrony.texi
 chrony.info : chrony.texi
        makeinfo chrony.texi
 
+Makefile : Makefile.in configure
+       @echo
+       @echo Makefile needs to be regenerated, run ./configure
+       @echo
+       @exit 1
+
 .deps:
        @mkdir .deps