Changes to m4/src/input.c [branch-1_4]

[Gary V . Vaughan]

Index: m4/src/input.c
diff -u m4/src/input.c:1.1.1.1.2.3 m4/src/input.c:1.1.1.1.2.4
--- m4/src/input.c:1.1.1.1.2.3  Sun May  1 11:54:12 2005
+++ m4/src/input.c      Sun Dec  4 20:17:36 2005
@@ -531,7 +531,12 @@
     }
 
   /* Failed, push back input.  */
-  obstack_grow (push_string_init (), t, n);
+  {
+    struct obstack *h = push_string_init ();
+
+    /* `obstack_grow' may be macro evaluating its arg 1 several times. */
+    obstack_grow (h, t, n);
+  }
   push_string_finish ();
   return 0;
 }