Date: Wed, 26 Jun 1996 13:48:29 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
To: Allen Pouratian <allenp AT nima DOT eecs DOT berkeley DOT edu>
Cc: djgpp AT delorie DOT com
Subject: Re: Leffler's TIFF Library -- DOS compilation?
In-Reply-To: <4qpcli$ck1@agate.berkeley.edu>
Message-Id: <Pine.SUN.3.91.960626133912.7935D-100000@is>
Mime-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII


On 25 Jun 1996, Allen Pouratian wrote:

> Stubediting cc1.exe to 512KB stack doesn't prevent the Seg-fault
> during the compile.  Again, this program compiles flawlessly in Linux
> but seg-faults during the compile of the file tif_fax3.c. Specifically,
> when I include the necessary file "g3states.h"

Can you find the code fragment that crashes it?  Some hints:

	1) Disable optimizations (remove -O switches from the compilation
command).  If it stops crashing, you can at least compile and use the 
program.

	2) Add -Q to the compilation command line.  Gcc will print the 
name of every function as it compiles it.  The function that causes the 
crash is the last whose name was printed, or the one after that.  Ifdef 
it out and try again; if it doesn't crash, then you have your culprit.

	3) Try zeroing in on the code fragment by halving the source 
file or its part (e.g. if 2 above already told you which function does 
the problem) with #if 0....#endif, until you get a small enough fragment 
that crashes gcc when included in the source, but when you exclude it, 
gcc compiles it.

After you get the code fragment that crashes gcc, post it here.

And do try to stubedit cc1.exe to 1MB or even more; I've already seen a 
1000-liner that needs 768KB stack to compile.