commit bash-20191127 snapshot

general.c

@@ -97,6 +97,8 @@ static struct {
   0
 };
 
+static char *saved_posix_vars;
+
 void
 posix_initialize (on)
      int on;
@@ -138,6 +140,13 @@ get_posix_options (bitmap)
   return bitmap;
 }
 
+#undef save_posix_options
+void
+save_posix_options ()
+{
+  saved_posix_vars = get_posix_options (saved_posix_vars);
+}
+
 void
 set_posix_options (bitmap)
      const char *bitmap;