[Plplot-general] Re: pdl graphics plplot on cygwin

[Arjen M. <arj...@wl...>]

> Bruno Picard wrote:
> 

> 
> So, there are strange things during the install of PDL:
>     - at perl Makefile.PL
>              it can't find libplplot.dll : actually, libplplot.dll.a
> exists so, it finally works if
>                                                                     -
> I "cp libplplot.dll.a libplplot.dll
>                                                               or  - I
> modify Makefile.PL in /Graphics/PLplot : my $libname =
> "libplplotd.dll.a" instead of
> 

Hm, I get similar files (libplplot.dll.a etc.) when using the builds
for Fortran and C. But somehow the GCC linker I use then is able
to use that exact file.

I think that the Perl Makefile script is not aware of this 
convention under Cygwin. Have you asked this on the Perl newsgroup?

>                                                                     my
> $libname = "libplplotd.dll".config("so")
>    - finally, it (seems to) work but, at the end of "make":
>             it can't find /blib/script/pdl : actually, "pdl.exe"
> exists, so I "cp PDL.exe PDL" ... and it works (?)
> 

Here again, a similar mismatch in expectations.

As I know nothing about the Perl make system, I can not help out
with these issues. 

>   - make install : all (seems to be) is ok
> 
>  - perldl inline command works:
>      perldl> $x = sequence 3,4
>      perldl> set $x, 2,1,99
>      perldl> p $x
>      [
>       [ 0  1  2]
>       [ 3  4 99]
>       [ 6  7  8]
>       [ 9 10 11]
>      ]
>     (from http://www.us025.ird.fr/article.php3?id_article=17)
> 
> Now, the problem is:
>  perl -v "use PDL::Graphics::PLplot;"
>  can't load
> '/usr/lib/perl5/site_perl/5.8/cygwin/auto/PDL/Graphics/PLplot/PLplot.dll'
> for module PDL/Graphics/PLplot:
> no such file or directory in Dynaloader.pm line 230
> 
> (line 230 of Dynaloader:; my $libref = dl_load_file( [...] )     )
> 
> But
> /usr/lib/perl5/site_perl/5.8/cygwin/auto/PDL/Graphics/PLplot/PLplot.dll
> exists (libPLplot.dll.a too) and is non void!!!
> 
> I didn't find any similar situation neither on the web nor in forums
> and i can't remember the number of (re)installation of
> the whole config (including cygwin)   : (
> 
> any suggestions will be welcomed as the first day of spring after a
> long and cold winter : p,
> 

My guess is that the dynamic loader is expecting a file with a 
different name or extension. Could you copy the .dll file to:
PLplot.so and PLplot.dll.so ?

Just a few suggestions, as I am not at all familiar with this 
part of Perl.

Regards,

Arjen