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Date: Tue, 16 Nov 2004 18:32:11 -0800
To: Mikael =?iso-8859-1?Q?=C5sberg?= <mikas493 AT student DOT liu DOT se>,
   <cygwin AT cygwin DOT com>
From: Tim Prince <tprince AT computer DOT org>
Subject: Re: g++ 3.4.1
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At 10:17 AM 11/16/2004, Mikael Åsberg wrote:

>"Martin Magnusson"  wrote:
>>I just tried upgrading from g++ 3.3.1 (which currently gives me an
>>"internal compiler error" on my code) to the 3.4.1 version available from
>>the Cygwin setup. After doing so, however, I get a flood of error messages
>>about the many templates I have (such as "template-id xxx for yyy does not
>>match any template declaration" and several other).
>>
>>Should I start to adapt my code to gcc 3.4.1, or would it be safer to wait
>>until it is available as default from the setup? Is it likely that the
>>error messages I get is due to the Cygwin port, or would it be g++ itself?
>>
>>/ martin
>
>g++ version 3.4.x is alot less forgiving (read: more compliant) than
>earlier versions of g++ (GCC) were regarding standard C++. This is a good
>thing.
>I haven't used the test version you mention but I've been compiling my
>own versions of GCC under Cygwin for some time and right now
>I am using the latest version (3.4.3). I haven't had any problems other
>than not being able to use -mno-cygwin anymore but I can live with that.
>So, you probably have problems with your C++ code, i.e. it's not standard-
>compliant but GCC used to accept it. Crank up the warning levels and turn
>off compiler extensions and start fixing the code.

ICE is probably the fault of the compiler, regardless of any possible 
shortcomings of your source code.  Other than that, I have no disagreement 
with Mikael.   If you "fix the code" and still provoke problems, there is 
some advantage in submitting bug reports against a version which is 
currently actively maintained.


Tim Prince 


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