[RESOLVED] building PerlMagick with perlbrew provided perl on Debian

perlfan has asked for the wisdom of the Perl Monks concerning the following question:

I have come with a question! Basic set up is:

Dockerfile FROM debian:stretch-slim (though this seems unrelated because I am actually debugging an issue I saw in a non-docker Debian environment)
everything is necessarily being done as a non-privileged user
perl 5.32.0 installed as a non-privileged user using perlbrew

The problem: following the prescribed steps (e.g, setting MAGICK_HOME) and using --with-perl, making sure the perl I want is provided by the perlbrew environment as expected, there is an issue with the build process finding -lperl. I have noted the following:

perlbrew provides libperl.a (but I have also tried by making it build libperl.so)
using the options, --enable-shared --with-modules and passing in LINKTYPE=static LD_RUN_PATH=/path/to/CORE to ExtUtils::MakeMaker via --with-perl-options allows it to build; however testing with perl -MImage::Magick fails due to not finding a method Image::Magick is using called constant.

If I install libperl-dev via apt-get, it all works perfectly. This just feels wrong to me. Anyone ever deal with this? I do not get the same issues on Ubuntu doing anything special with perlbrew or passing in anything via --with-perl-options. Though it now occurs to me that I didn't ensure that libperl-dev was not installed as a dependency for something else.

I've been pouring over https://imagemagick.org/script/advanced-linux-installation.php for the better part of a day, and no luck. I also found https://legacy.imagemagick.org/discourse-server/viewtopic.php?t=8133, but it's a very old post and didn't seem to give me any good ideas.

My last resort is to, apt-get install libperl-dev - but I still want to use the newer version of perl provided by perlbrew. Any ideas? I can provide more detailed errors, but was hoping this could be recognized by someone here. TIA.

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Re: building PerlMagick with perlbrew provided perl on Debian by arpad.szasz (Pilgrim) on Mar 28, 2021 at 18:06 UTC
I found a personal note regarding troubleshooting something similar a while back (and a patch against ImageMagick-6.9.1-1) which replaces `-lperl` with `-L' . $Config{'archlib'} . '/CORE';` in the `$LIBS_magick` scalar variable declaration in the following files: `ImageMagick-6.9.1-1/PerlMagick/default/Makefile.PL.in` `ImageMagick-6.9.1-1/PerlMagick/Makefile.PL.in` `ImageMagick-6.9.1-1/PerlMagick/quantum/Makefile.PL.in` For example the diff for `PerlMagick/Makefile.PL.in` should look like: -my $LIBS_magick = '-L../magick/.libs -lMagickCore-@MAGICK_MAJOR_VERSION@.@MAGICK_ABI_SUFFIX@ -lperl @MATH_LIBS@'; +my $LIBS_magick = '-L../magick/.libs -lMagickCore-@MAGICK_MAJOR_VERSION@.@MAGICK_ABI_SUFFIX@ @MATH_LIBS@ -L' . $Config{'archlib'} . '/CORE'; Hope this works for ImageMagick 7 too. I believe the main issue is that the default behaviour is influenced by the `LD_LIBRARY_PATH` environment variable which wouldn't include the path to your perlbrew built perl library so the system libperl is used. You can also try (untested solution) to set `LIBRARY_PATH` to point to your perlbrew built libperl path before compiling.	[reply] [d/l] [select]
Re^2: building PerlMagick with perlbrew provided perl on Debian by perlfan (Vicar) on Mar 31, 2021 at 03:47 UTC
arpad.szasz - As promised, https://github.com/ImageMagick/ImageMagick/issues/3469. They have reproduced it and are working on it. Talk about service =) Thank you, again.	[reply]
Re^2: building PerlMagick with perlbrew provided perl on Debian by perlfan (Vicar) on Mar 29, 2021 at 04:05 UTC
This absolutely work! Thank you so much. I will see if I can get a patch submitted upstream to pay your goodwill forward.	[reply]
Re: building PerlMagick with perlbrew provided perl on Debian by 1nickt (Canon) on Mar 28, 2021 at 12:26 UTC
Hi, FWIW (?) I am running 5.32.0 via perlbrew but I see `libperl5.30/focal,now 5.30.0-9build1 amd64 [installed,upgradable to: 5.30.0-9ubuntu0.2]` is installed. I definitely did not install that manually. Hope this helps! The way forward always starts with a minimal test.	[reply] [d/l]
Re^2: building PerlMagick with perlbrew provided perl on Debian by perlfan (Vicar) on Mar 28, 2021 at 18:14 UTC
Thank you, this is helpful in explaining part of the situation. I will add that the `PerlMagick/Makefile` created during the configure and build process of ImageMagick/PerlMagick most definitely accounts for the paths associated with the `perlbrew` `perl`, including variables like `PERL_INC`, etc. The path to the architecturally dependent `libperl.a` in the proper "`/CORE`" directory is even properly detected and in the `PerlMagick/Makefile`. If anything, it seems that the linker step is not using that information - - might have something with the following environmental variables not being respected somehow: `LDFLAGS`, `LD_LIBRARY_PATH`, `LD_RUN_PATH` - possible another few that are linker related. This may also point to the need to run `/usr/bin/ldconfig` at some point on either the custom ImageMagick lib path(s) or `perl`'s, which then tells me there might be some assumption being made my ImageMagick's build infrastructure that is being violated by the introduction of `perlbrew` - or at least a non-privileged build of `perl` more generally. I'll keep poking at it, but in the mean time I'll probably just `apt-get install libperl-dev` this and move along.	[reply] [d/l] [select]


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