(maintainer-clean): Renamed from realclean.

Print warning message.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/Makefile.in b/src/Makefile.in
index 4c8e703befd..4634be1f7b4 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -924,7 +924,9 @@ clean: mostlyclean
 /**/# Do not use it on development directories!
 distclean: clean
         rm -f paths.h config.h Makefile Makefile.in ../etc/DOC-*
-realclean: distclean
+maintainer-clean: distclean
+        @echo "This command is intended for maintainers to use;"
+        @echo "it deletes files that may require special tools to rebuild."
         rm -f TAGS
 versionclean:
         -rm -f emacs emacs-* ../etc/DOC*