1 files changed, 3 insertions, 0 deletions

diff --git a/lib/Makefile.in b/lib/Makefile.in
index ac32c7070f3..12a1be705f6 100644
--- a/lib/Makefile.in
+++ b/lib/Makefile.in
@@ -126,6 +126,9 @@ distclean bootstrap-clean: mostlyclean
         rm -fr $(DEPDIR)
 maintainer-clean: distclean
         rm -f TAGS gnulib.mk
+extraclean: distclean
+        -[ -d sys ] && rmdir --ignore-fail-on-non-empty sys
+
 .PHONY: mostlyclean clean distclean bootstrap-clean maintainer-clean
 
 # Tell versions [3.59,3.63) of GNU make to not export all variables.