FVWM Bug Tracking notification
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Message summary for PR#738
From: [EMAIL PROTECTED]
Subject: gcc-3.0 compilation with optimizations
Date: Wed, 11 Jul 2001 06:02:17 -0500
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To: [EMAIL PROTECTED]
Subject: gcc-3.0 compilation with optimizations
Message-Id: <[EMAIL PROTECTED]>
Date: Wed, 11 Jul 2001 06:02:17 -0500
Full_Name: Guillaume Chazarain
Version: 2.4.0
CVS_Date:
OS: linux-2.4.6-ac2
X_Server: XFree86-4.1.0
Submission from: (NULL) (134.59.9.99)
Hello, here is a patch for a bug that I suspect
not to be in fvwm.
Let me explain :
When compiling fvwm2 with gcc 3.0 under linux and
CFLAGS="-pipe -O2 -march=i686 -fomit-frame-pointer"
fvwm crashes at startup, the problem is that it
doesn't with older gcc or less aggressive optimizations.
So here is a dirty patch to fix this :
--------------------------------------------------------
diff -Naur fvwm-2.4.0/fvwm/builtins.c fvwm-2.4.0.gcc3/fvwm/builtins.c
--- fvwm-2.4.0/fvwm/builtins.c Tue Jun 26 14:44:02 2001
+++ fvwm-2.4.0.gcc3/fvwm/builtins.c Tue Jul 10 19:50:51 2001
@@ -1015,7 +1015,7 @@
decor->flags.has_changed = 1;
decor->titlebar.flags.has_changed = 1;
- for (prev = action ; (parm = PeekToken(action, &action)); prev =
action)
+ for (prev = action ; (action && (parm = PeekToken(action, &action)));
prev =
action)
{
if (!do_add && StrEquals(parm,"centered"))
{
-------------------------------------------------------
The problem is that a NULL pointer is dereferenced.
Furthermore, I think this patch is not the solution, it's
just quick hack that lets me use gcc 3.0 and fvwm.
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