    old_flags = command->flags;
 diff -ruwN source/general.c source-new/general.c
 --- source/general.c	2016-08-11 09:16:56.000000000 -0600
-+++ source-new/general.c	2019-01-28 12:45:41.801895779 -0700
++++ source-new/general.c	2020-07-14 20:50:54.550545485 -0600
 @@ -476,6 +476,7 @@
  void
  check_dev_tty ()

   #pragma alloca
diff -ruwN source/sig.c source-new/sig.c
--- source/sig.c	2016-02-11 13:02:45.000000000 -0700
+++ source-new/sig.c	2019-01-28 13:48:08.303876705 -0700
@@ -680,7 +680,9 @@
 }
 

 /* Default primary and secondary prompt strings. */
diff -ruwN source/configure.ac source-new/configure.ac
--- source/configure.ac	2016-09-07 14:56:28.000000000 -0600
+++ source-new/configure.ac	2020-07-14 20:50:54.550545485 -0600
@@ -90,6 +90,7 @@
 *-opennt*|*-interix*)	opt_bash_malloc=no ;;	# Interix, now owned by Microsoft
 *-nsk*)		opt_bash_malloc=no ;;	# HP NonStop
