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Message-ID:	<434E1454.5090008@mathematik.uni-kl.de>
Date:	Thu, 13 Oct 2005 10:01:24 +0200
From:	Oliver Wienand <wienand AT mathematik DOT uni-kl DOT de>
User-Agent:	Mozilla Thunderbird 0.9 (Windows/20041103)
MIME-Version:	1.0
To:	cygwin AT cygwin DOT com
Subject:	gcc, very high template-depth

Hello,

I try to compile polymake on cygwin.

Compiling works fine as long as cc1plus does not occupy more memory than 
I have RAM (ca. 750 MB) on my machine. After this it gets of course 
really slow.

I think the problem is, that polymake uses templates very heavy and 
compiles with --ftemplate-depth-200.

When I reduce the value as much to resolve my memory problems, I get of 
course errors about template-depth not high enough.

I must confess I am rather not a expert for gcc, therefore can I do 
something to reduce memory consumptions or any other tricks to compile 
polymake? I have tried the optimization parameters -O -O1 -03.

On Linux it seems to compile with even less RAM than I have.

Polymakes home :
    http://www.math.tu-berlin.de/polymake/
Source Distribution :
    http://www.math.tu-berlin.de/polymake/download/polymake-2.1.0.tar.bz2
(without latest patches)

I used:

   make configure
      C++ compiles   = g++
      C compiler     = gcc
      Opt. Level     = -O
      compiler flags = -march=pentium4

   make

Sincerely,

Oliver Wienand
TU Kaiserslautern

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