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-rw-r--r--Makefile.in6
1 files changed, 6 insertions, 0 deletions
diff --git a/Makefile.in b/Makefile.in
index af299ddb0c8..7c18a9fa453 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -1000,6 +1000,12 @@ endef
mostlyclean_dirs = src oldXMenu lwlib lib lib-src nt doc/emacs doc/misc \
doc/lispref doc/lispintro test
+### Add the libexec directory to mostlyclean_dirs if its Makefile has
+### been created.
+ifneq ($(wildcard exec/Makefile),)
+mostlyclean_dirs := $(mostlyclean_dirs) exec
+endif
+
$(foreach dir,$(mostlyclean_dirs),$(eval $(call submake_template,$(dir),mostlyclean)))
mostlyclean: $(mostlyclean_dirs:=_mostlyclean)