[CMake] Why does cmake adds /STACK:10000000 for msvc linker?

[Timenkov Yuri]

I've asked the same question some time ago (
http://www.mail-archive.com/cmake@cmake.org/msg14883.html).

We had a problem with big number of threads: the 32-bit address space can
fit only ~200 threads with such huge stacks. So if you are writing
multithreaded application, it is best to remove this option from flags.

On Mon, Apr 13, 2009 at 9:20 AM, Andrew Maclean
<andrew.amaclean at gmail.com>wrote:

> I think the reason was that when Visual Studio 6 was used to build VTK
> it used to run out of stack space necessitating the large value that
> needed to be set.
>
> I am pretty sure that this was the case because I think I was one of
> the people who noted this problem in the "old days"!
>
> Andrew
>
>
> On Mon, Apr 13, 2009 at 2:07 AM, Sahn Lam <sahn at pobox.com> wrote:
> > Don't know the reason behind this, but this is how we unset it:
> >
> >    #
> >    # Remove /STACK:10000000 set by CMake. This value for stack size
> >    # is very high, limiting the number of threads we can spawn.
> >    # Default value used by Windows is 1MB which is good enough.
> >    #
> >    STRING(REGEX REPLACE "/STACK:[0-9]+" ""
> >        CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS}")
> >
> >
> > On Sun, Apr 12, 2009 at 2:48 AM, Christian Ehrlicher
> > <Ch.Ehrlicher at gmx.de> wrote:
> >> Hi,
> >>
> >> I don't understand the reason behind this. We've a very huge memory
> >> footprint because of this on kde4/windows - kded4.exe has ~30 Threads
> >> which means 300MB of stack!
> >>
> >> Is there an easy way to change this?
> >>
> >>
> >> Thx,
> >> Christian
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> --
> ___________________________________________
> Andrew J. P. Maclean
> Centre for Autonomous Systems
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> AUSTRALIA
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