iASL: Fix issue with possible freopen failure.

An attempted workaround for the "freopen closes the input file even
if it later fails" issue was not portable. This change fixes
the problem by emitting an error message to stdout and exiting.
Part of ACPICA BZ 1130.

source/compiler/aslfiles.c

@@ -655,22 +655,22 @@ FlOpenMiscOutputFiles (
 
         /* Open the debug file as STDERR, text mode */
 
-        /* TBD: hide this behind a FlReopenFile function */
-
         Gbl_Files[ASL_FILE_DEBUG_OUTPUT].Filename = Filename;
         Gbl_Files[ASL_FILE_DEBUG_OUTPUT].Handle =
             freopen (Filename, "w+t", stderr);
 
         if (!Gbl_Files[ASL_FILE_DEBUG_OUTPUT].Handle)
         {
             /*
-             * A problem with freopen is that on error,
-             * we no longer have stderr.
+             * A problem with freopen is that on error, we no longer
+             * have stderr and cannot emit normal error messages.
+             * Emit error to stdout, close files, and exit.
              */
-            Gbl_DebugFlag = FALSE;
-            memcpy (stderr, stdout, sizeof (FILE));
-            FlFileError (ASL_FILE_DEBUG_OUTPUT, ASL_MSG_DEBUG_FILENAME);
-            AslAbort ();
+            fprintf (stdout,
+                "\nCould not open debug output file: %s\n\n", Filename);
+
+            CmCleanupAndExit ();
+            exit (1);
         }
 
         AslCompilerSignon (ASL_FILE_DEBUG_OUTPUT);