1 files changed, 4 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index bbe0725..26a1f3d 100644
--- a/Makefile
+++ b/Makefile
@@ -49,9 +49,12 @@ am_sys_files =                      $(targets)  $(pkgconffile)
 
 # Pattern rules
 
-%: %.in
+%: %.in .var.sbindir .var.pkgconffile
 	sed -e 's|@sbindir@|$(sbindir)|' -e 's|@pkgconffile@|$(pkgconffile)|' < $< > $@
 
+.var.%: FORCE
+	@printf '%s' '$($*)' | ./write-ifchanged $@
+
 $(DESTDIR)$(sbindir)/%: %
 	install -Dm755 $< $@