make Perdir.mk.in optional

diff --git a/subdirmk/generate b/subdirmk/generate
index 2e35b0d146416098631068bd20338b7e3b27723c..55323d2770aec5d0ecfa2a96a132acaeaa1eb7cf 100755 (executable)
--- a/subdirmk/generate
+++ b/subdirmk/generate
@@ -203,7 +203,7 @@ sub filter_subdir_mk ($$$$$) {
                         "${srcdir}/$f", \$esclit, $enoentok);
     };
     $pi->("${dir_prefix}Subdir.mk.in", 0);
-    $pi->("Perdir.mk.in",              0);
+    $pi->("Perdir.mk.in",              1);
 }
 
 sub process_subtree ($$);