From: Nick Roberts <nickrob@snap.net.nz>
Date: Thu, 3 Nov 2005 02:03:24 +0000 (+0000)
Subject: (Note): GDB can sometimes expand macros.
X-Git-Tag: emacs-pretest-22.0.90~6108
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=0a24fa80376ce7ef6e765806922cf95642a4ea8f;p=emacs.git

(Note): GDB can sometimes expand macros.
---

diff --git a/etc/DEBUG b/etc/DEBUG
index 27f563a7405..773737c65c7 100644
--- a/etc/DEBUG
+++ b/etc/DEBUG
@@ -158,8 +158,9 @@ we want the address of the l-value expression near the bottom of
 
   XVECTOR (this_command_keys)->contents[this_command_key_count++] = key;
 
-XVECTOR is a macro, and therefore GDB does not know about it.
-GDB cannot evaluate "p XVECTOR (this_command_keys)".
+XVECTOR is a macro, and therefore, in general, GDB does not know about it.
+Unless Emacs has been compiled with preprocessor macro info, GDB cannot
+evaluate "p XVECTOR (this_command_keys)" .
 
 However, you can use the xvector command in GDB to get the same
 result.  Here is how: