(process_aux_info_file): Set must_create before jumping to start_over.

(process_aux_info_file): Set must_create before jumping to
start_over.  Don't clear must_create at start_over.  Don't test
source file mod time for SYSCALLS.

From-SVN: r1573

gcc/protoize.c

@@ -2090,12 +2090,14 @@ process_aux_info_file (base_source_filename, keep_it, is_syscalls)
   /* Check that the aux_info file exists and is readable.  If it does not
      exist, try to create it (once only).  */
 
-start_over: ;
-
   /* If file doesn't exist, set must_create.
      Likewise if it exists and we can read it but it is obsolete.
      Otherwise, report an error.  */
   must_create = 0;
+
+  /* Come here with must_create set to 1 if file is out of date.  */
+start_over: ;
+
   if (my_access (aux_info_filename, R_OK) == -1)
     {
       if (errno == ENOENT)
@@ -2172,6 +2174,8 @@ start_over: ;
   
     aux_info_mtime = stat_buf.st_mtime;
 
+    if (!is_syscalls)
+      {
 	/* Compare mod time with the .c file; update .X file if obsolete.
 	   The code later on can fail to check the .c file
 	   if it did not directly define any functions.  */
@@ -2185,8 +2189,12 @@ start_over: ;
 	    return;
 	  }
 	if (stat_buf.st_mtime > aux_info_mtime)
+	  {
+	    must_create = 1;
 	    goto start_over;
 	  }
+      }
+  }
 
   {
     int aux_info_file;