re PR fortran/59612 ([F03] iso_fortran_env segfaults with -fdump-fortran-original)

2013-12-29  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/59612
	* dump-parse-tree.c (show_typespec): Check for charlen.
	* invoke.texi: Fix documentation of -fdump-fortran-optimized and
	-fdump-parse-tree.

From-SVN: r206237

gcc/fortran/ChangeLog

+2013-12-29  Janus Weil  <janus@gcc.gnu.org>
+
+	PR fortran/59612
+	* dump-parse-tree.c (show_typespec): Check for charlen.
+	* invoke.texi: Fix documentation of -fdump-fortran-optimized and
+	-fdump-parse-tree.
+
 2013-12-18  Janus Weil  <janus@gcc.gnu.org>
 
 	PR fortran/59493

gcc/fortran/dump-parse-tree.c

@@ -110,7 +110,8 @@ show_typespec (gfc_typespec *ts)
       break;
 
     case BT_CHARACTER:
-      show_expr (ts->u.cl->length);
+      if (ts->u.cl)
+	show_expr (ts->u.cl->length);
       fprintf(dumpfile, " %d", ts->kind);
       break;
 

gcc/fortran/invoke.texi

@@ -989,11 +989,12 @@ Output the internal parse tree after translating the source program
 into internal representation.  Only really useful for debugging the
 GNU Fortran compiler itself.
 
-@item -fdump-optimized-tree
+@item -fdump-fortran-optimized
 @opindex @code{fdump-fortran-optimized}
 Output the parse tree after front-end optimization.  Only really
 useful for debugging the GNU Fortran compiler itself.
 
+@item -fdump-parse-tree
 @opindex @code{fdump-parse-tree}
 Output the internal parse tree after translating the source program
 into internal representation.  Only really useful for debugging the