Re: [Pdl-devel] PDL::Drawing::Prima

[Ingo S. <in...@gm...>]

Hi Dimitry,

perl Makefile.PL DL_LOAD_FLAGS=1

was the solution! No reinstall or anything needed.

Thank you so much!

Ingo

PS: I got syntax errors with this (even when using the right location of Prima.so). Is this to be run in bash or perl?

openat(AT_FDCWD, "/usr/local/lib/x86_64-linux-gnu/perl/5.34.0/auto/Prima/Prima.so", O_RDONLY|O_CLOEXEC) = 5


On 29.05.24 3:17 PM, Dmitry Karasik wrote:
> Hi all
>
> Sorry no clue either. But I'd do this:
>
> 1) remove all prima and P:D:P stuff, make sure no lingering .so files, then clean reinstall.
> 2) nm won't help you here because the linking is done by dlopen() during runtime, so
> try this instead:
>
> $ strace perl -Iblib/arch -Iblib/lib -MPDL::Drawing::Prima -e 1 2>&1 | grep Prima.so
> openat(AT_FDCWD, "/usr/local/lib/x86_64-linux-gnu/perl/5.34.0/auto/Prima/Prima.so", O_RDONLY|O_CLOEXEC) = 5
>
> if it cannot find Prima.so then there's something wrong with the installation.
>
> If however it can but cannot bind dynamically it might be that the system is so old that
> Prima couldn't detect that it needs an explicit RTLD_GLOBAL flag. Check this then:
>
> $ grep dl_load_flags Prima/Config.pm
> dl_load_flags => 1,
>
> so if it is not 1, you can try to recompile Prima with this:
>
> perl Makefile.PL DL_LOAD_FLAGS=1
>
> (but this is a really ancient stuff, I think I only used it on Sun/IRIX back then..)
>
> /dk
>
>
> On Mon, May 27, 2024 at 10:06:00AM +0000, Ed . wrote:
>> Hi Ingo,
>>
>> I don’t know either. Dmitry, any ideas? I re-attach the nm output files.
>>
>> Best regards,
>> Ed
>>
>> ________________________________
>> From: Ingo Schmid<in...@gm...>
>> Sent: Monday, May 27, 2024 10:49:04 AM
>> To: Ed .<ej...@ho...>; pdl-devel<pdl...@li...>; perldl<pdl...@li...>; David Mertens<dcm...@gm...>
>> Subject: Re: [Pdl-devel] PDL::Drawing::Prima
>>
>>
>> Hi Ed,
>>
>> after further investigation, I think the Makefile is OK. I have essentially to environments where I need this to run.
>>
>> 1) modern regularly updated linux boxes
>>
>> 2) servers with older stable releases (many kind of different software running, not easily updated)
>>
>> Both have perlbreew installations using perl-5.36.0 (with different aliases.
>>
>> On the modern boxes, P:D:P works fine, while on the server it complains about unresolved symbols (gimme_the_mate) during make test or apc_get_core_version when perl -Mblib -e "use PDL::Drawing::Prima;", Both have Prima 1.73 installed.
>>
>> The build log is inconspicuous, I can load the Utils module.
>>
>> Checking if you have Prima 1.57 ... Yes (1.73)
>> Checking if you have ExtUtils::MakeMaker 0 ... Yes (7.64)
>> Checking if you have Test::More 0.88 ... Yes (1.302190)
>> Checking if you have PDL 2.037 ... Yes (2.089)
>> Building and testing PDL-Drawing-Prima-0.18
>>
>> I am at a complete loss here. I attached the output of nm
>>
>> On 24.05.24 5:59 PM, Ed . wrote:
>>
>> Hi Ingo,
>>
>>
>>
>> I think the relevant part of the attached Makefile.PL is (as changed by you):
>>
>>
>>
>> if ($Prima::Config::Config{dlname}){
>>
>>              my ($primalib, $primapath)=fileparse($Prima::Config::Config{dlname});
>>
>>              $hash{LIBS}->[0] = " -L$primapath -lPrima "
>>
>> }
>>
>>
>>
>> You’ve changed it from an append (.=) to an assign, which might explain why it doesn’t work. Is there a reason you did that? Also, why did you remove the existing code below?
>>
>>
>>
>> $hash{LIBS}[0] .= " $Prima::Config::Config{libs}"
>>
>>          if $Prima::Config::Config{libs};
>>
>>
>>
>> What errors did you get? Are you on Ubuntu? Because I’m using Ubuntu, and building P:D:Prima here doesn’t need to link Prima - the dynamic linker takes care of it at runtime.
>>
>>
>>
>> Best regards,
>>
>> Ed
>>
>>
>>
>> ________________________________
>> From: Ingo Schmid via pdl-devel<pdl...@li...><mailto:pdl...@li...>
>> Sent: Thursday, May 23, 2024 1:05:37 PM
>> To: pdl-devel<pdl...@li...><mailto:pdl...@li...>; perldl<pdl...@li...><mailto:pdl...@li...>; David Mertens<dcm...@gm...><mailto:dcm...@gm...>
>> Subject: [Pdl-devel] PDL::Drawing::Prima
>>
>>
>> Hi,
>>
>> this module does not find Prima.so (from Prima).
>>
>> Makefile.PL needs to lock at Prima::Config::Config{dlname} and set the correct LIBS field. I failed to make it work.
>>
>> I got the parts necessary extracted, but make seems to ignore it. This results in unresolved symbols from Prima.
>>
>> Ingo
>
>
>