From a251ad7488c6a1268c4aca0f1937cc397f663325 Mon Sep 17 00:00:00 2001
From: Patrik Nyblom <pan@erlang.org>
Date: Wed, 10 Mar 2010 12:57:00 +0000
Subject: cerl: Work around missing source frame in when running gdb in emacs

This problems occurs in some recent versions of Emacs.
---
 erts/etc/unix/cerl.src | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/erts/etc/unix/cerl.src b/erts/etc/unix/cerl.src
index f81ef6b0fe..9dab9fcfcc 100644
--- a/erts/etc/unix/cerl.src
+++ b/erts/etc/unix/cerl.src
@@ -1,20 +1,20 @@
 #!/bin/sh
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 2003-2009. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 2003-2010. All Rights Reserved.
+#
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
 # compliance with the License. You should have received a copy of the
 # Erlang Public License along with this software. If not, it can be
 # retrieved online at http://www.erlang.org/.
-# 
+#
 # Software distributed under the License is distributed on an "AS IS"
 # basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 # the License for the specific language governing rights and limitations
 # under the License.
-# 
+#
 # %CopyrightEnd%
 #
 #
@@ -277,6 +277,16 @@ else
 	    ;;
     esac
 
+    # Set annotation level for gdb in emacs 22 and higher.
+    emacs_major=`$EMACS --version | head -1 | sed 's,^[^0-9]*\([0-9]*\).*,\1,g'`
+    if [ '!' -z "$emacs_major" -a $emacs_major -gt 21 ]; then
+	# Hack - wait for etp-commands to be loaded and then set
+	# annotation level, could be done more beautifully than with sit-for...
+	gdbcmd="$gdbcmd \
+                (sit-for 1) \
+                (insert-string \"set annotate 3\") \
+                (comint-send-input)"
+    fi
     gdbcmd="$gdbcmd $GDBBP \
             (insert-string \"source $ROOTDIR/erts/etc/unix/etp-commands\") \
             (comint-send-input)"
-- 
cgit v1.2.3