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Re: MSVCRT and Cygwin runtime


--- Luke Ross <lcr299@ecs.soton.ac.uk> wrote:
> Hi
> 
> I'm quite new to cygwin so please forgive me if this is a bit of a silly
> question.  I'm currently compiling a perl-enabled application, and I want
> to link it against ActivePerl.
> 
> The program has calls to the usual Unix functions (eg
> fork() select() etc), so I compiled it under cygwin without trouble, but
> when I want to link in Perl it all fails as the cygwin linker can't get to
> grips with perl56.lib.
> 
> Using suggestions on the web, I tried using link.exe from VCC, by linking
> the .lib, libcygwin.a and the object files, but it complained that there
> was no msvcrt routine, I think because Perl was linked using MSVCRT.  I
> tried linking all of the above with the msvcrt library from VCC, which
> produced an executable that dies on startup with a memory read error.
> 
> I've seen suggestion that MSVCRT and the cygwin runtime don't get on very
> well - is there any way to build what I want to without doing a
> cygwin-perl build (undesireable as it breaks everything else I have with
> embedded perl).
> 

You can't use both runtimes at the same time.  The biggest issue is reentrancy
coding with Cygwin.  Do you have real reasons to use ActiveState perl versus a
Cygwin enabled perl?

Cheers,

=====
Earnie Boyd
mailto:earnie_boyd@yahoo.com

---         <http://earniesystems.safeshopper.com>         ---
--- Cygwin: POSIX on Windows <http://gw32.freeyellow.com/> ---
---   Minimalist GNU for Windows <http://www.mingw.org/>   ---

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