Re: [gentoo-user] GCC 4.0

2005-05-03 Thread Andreas Fredriksson
On 5/2/05, Neil Walker [EMAIL PROTECTED] wrote:

 Yes. A lot of stuff simply will not compile with it. The rest tend to
 produce large and slow executables. I wouldn't use it for anything yet.
 3.4.x is the best to date.

Are there any evidence of said bloat and poor performance with 4.0 or
do you base it on hearsay? :-)

I studied a lot of assembly output on the pre-release versions of 4.0
and the optimizer has really improved compared to the older series.

I would imagine stuff not compiling is mostly because the C++ standard
has moved considerably over the last years, and a lot of software
which caters for GCC 2.95 isn't well-formed given the latest revision
of the standard.

That said, it usually takes a minor revision (i.e. 4.1) before a
compiler is generally usable for a distro. I remember all the breakage
when GCC 3.0 was introduced..

// Andreas

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Re: [gentoo-user] GCC 4.0

2005-05-03 Thread Neil Walker
Andreas Fredriksson wrote:
Are there any evidence of said bloat and poor performance with 4.0 or
do you base it on hearsay? :-)
Well, I haven't actually heard anything. ;) My statement was based on my 
experience with compiling the SETI/BOINC clients, mainly. The 
executables were around 70% larger and computation took around 50% 
longer. I am comparing with the results I achieved with GCC 3.4.3 using 
the same compiler flags in each case.

Be lucky,
Neil
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[gentoo-user] GCC 4.0

2005-05-02 Thread Bradley Serbu
Has anyone used this?

- Brad
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Re: [gentoo-user] GCC 4.0

2005-05-02 Thread Yi Ding
I wouldn't recommend rebuilding your system with it.  Apparently glibc
needs to release a new version 2.3.6 to be compatible.  Of course,
since it's stricter than previous GCCs, it's probably a good idea to
try compiling any software you write with it to make sure that it
doesn't break in the future.

Yours truly,
Yi Ding

On 5/2/05, Bradley Serbu [EMAIL PROTECTED] wrote:
 Has anyone used this?
 
 - Brad
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Re: [gentoo-user] GCC 4.0

2005-05-02 Thread Neil Walker
Bradley Serbu wrote:
Has anyone used this?
Yes. A lot of stuff simply will not compile with it. The rest tend to 
produce large and slow executables. I wouldn't use it for anything yet. 
3.4.x is the best to date.

Be lucky,
Neil
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