Re: gcc for building Perl on WinXP

Hi kmx-

The detection for the pthread library is currently broken.
To build PDL with pthreads you'll need to explicitly set
the values of WITH_POSIX_THREADS, POSIX_THREADS_INC, and
POSIX_THREADS_LIBS where the comment indicate what worked
for my strawberry perl install was:

> WITH_POSIX_THREADS => undef,
>
> POSIX_THREADS_LIBS => '-LC:/chm/strawberry/pthreads/lib -lpthreadGC2',
> POSIX_THREADS_INC => '-IC:/chm/strawberry/pthreads/include',

and the C:/chm/strawberry/pthreads contained the pthreads
install location.  I'm actually working on the detection
code this evening so that if a pthread library is in the
correct location it would be detected and used.

I'll give your library a build try this evening if I can.

Cheers,
Chris


On 11/6/2011 4:14 PM, kmx wrote:
> Chris and/or Rob,
>
> could you please try the following:
>
> 1/ take
> http://strawberryperl.com/package/kmx/p5.14.2.1-RC/strawberry-perl-5.14.2.1-portable-32bit-beta-1.zip
>
>
> 2/ take
> http://strawberryperl.com/package/kmx/32_libs/5.14-extras/32bit_pthreads-2.9.0-bin_20111101.zip
>
> (unzip into the same dir as 1/)
>
> 3/ try to build PDL with pthreads support
>
> My quick test failed during PDL installation (but it was really a quick
> shot)
>
> Any feedback welcome
>
> --
> kmx
>
> On 3.11.2011 14:13, Chris Marshall wrote:
>> We've tested the PDL pthread support with "POSIX Threads
>> (pthreads) for Win32" at http://sourceware.org/pthreads-win32/ .
>> It is nice because it allows PDL computations to make use
>> of multicore processors for calculations. Always nice to see
>> those factors of 2X, 4X, 6X, or more in speedup....
>>
>> --Chris
>>
>> On Wed, Nov 2, 2011 at 9:30 PM, Sisyphus<[email protected]>
>> wrote:
>>> ----- Original Message ----- From: "kmx"
>>>> As for the future gcc-4.6.2 toolchain there is also an interesting
>>>> question about including pthreads or winpthreads support as PDL is
>>>> AFAIK
>>>> somohow able to handle threads this way (not sure if this is valid for
>>>> Win32)
>>> Yes, pthreads works with PDL on Win32.
>>> There's a crash in one of PDL's pthread test scripts that needs to be
>>> sorted
>>> out, but the basic functionality seems to be fine.
>>>
>>> Cheers,
>>> Rob
>>
>
>
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