[sf-perl] macOS 11.2.1 Perl 5.28.2 ExtUtils::MakeMaker 7.34 'perl Makefile.PL' Segmentation fault: 11

yary not.com at gmail.com
Fri Feb 12 10:13:34 PST 2021


For what it's worth, after updating to Big Sur, I also updated the Xcode
command-line tools, then used perlbrew to install Perl 5.32 in my home
directory, with all new modules too.

The system perl in MacOS /usr/bin went from 5.18 to 5.28, will make a
difference if your local::lib was compiled against that.

-y


On Fri, Feb 12, 2021 at 1:40 AM David Christensen <dpchrist at holgerdanske.com>
wrote:

> On 2021-02-11 21:51, Joseph Brenner wrote:
>
> > On 2/11/21, David Christensen wrote:
>
> >> 2021-02-11 20:21:48 dpchrist at MacBook-Pro ~/MacOS-Foo $ perl
> >> Makefile.PL Checking if your kit is complete... Segmentation fault:
> >> 11
>
> > That sounds pretty crazy...
> >
> > Are familiar with the perl debugger?  You could try running with
> > "perl -d", then single stepping ("n" or maybe "s") repeatedly to
> > narrow down where it's segfaulting.
> >
> > A random thought: you could try initializing the module differently,
> > rather than using h2xs.   Or try basing it on something besides
> > ExtUtils::Makemaker?
>
> Thanks for the ideas.  :-)
>
>
> Using the Perl debugger, entering 's', and then leaning on the <Enter>
> key for 1 minute 5 seconds:
>
> ...
> Carp::ret_backtrace(/System/Library/Perl/5.28/Carp.pm:625):
> 625:        return $mess;
>    DB<1>
> Signal SEGV at
> /Users/dpchrist/perl5/lib/perl5/darwin-thread-multi-2level/List/Util.pm
> line 23.
>         require List/Util.pm called at
> /Users/dpchrist/perl5/lib/perl5/darwin-thread-multi-2level/Scalar/Util.pm
> line
> 23
>         require Scalar/Util.pm called at (eval
> 29)[/System/Library/Perl/5.28/File/Copy.pm:18] line 1
>         eval ' require Scalar::Util; require overload; 1 ' called at
> /System/Library/Perl/5.28/File/Copy.pm line 18
>         require File/Copy.pm called at
> /Users/dpchrist/perl5/lib/perl5/ExtUtils/Manifest.pm line 6
>         ExtUtils::Manifest::BEGIN() called at
> /Users/dpchrist/perl5/lib/perl5/darwin-thread-multi-2level/List/Util.pm
> line 0
>         eval {...} called at
> /Users/dpchrist/perl5/lib/perl5/darwin-thread-multi-2level/List/Util.pm
> line 0
>         require ExtUtils/Manifest.pm called at
> /Users/dpchrist/perl5/lib/perl5/ExtUtils/MakeMaker.pm line 1040
>         ExtUtils::MakeMaker::check_manifest() called at
> /Users/dpchrist/perl5/lib/perl5/ExtUtils/MakeMaker.pm line 508
>         ExtUtils::MakeMaker::new("MM", MM=HASH(0x7ff6938f1150)) called at
> /Users/dpchrist/perl5/lib/perl5/ExtUtils/MakeMaker.pm line 77
>         ExtUtils::MakeMaker::WriteMakefile("NAME", "MacOS::Foo",
> "VERSION_FROM", "lib/MacOS/Foo.pm", "PREREQ_PM", HASH(0x7ff694018848),
> "ABSTRACT_FROM", "lib/MacOS/Foo.pm", ...) called at Makefile.PL line 5
> Abort trap: 6
>
>
> So, it blows up when Carp::ret_backtrace tries to return.  I don't know
> what to do with that...
>
>
> I initially discovered this when I attempted to build my code.  I did
> the h2xs(1) to see if it was Perl or my Makefile.PL.
>
>
> ExtUtils::MakeMaker is fundamental to Perl.  If that's broke, Perl is
> broke AFAIC.
>
>
> Next idea -- blow away ~/perl5 (created by local::lib), log out, log in,
> and try again:
>
> 2021-02-11 22:16:30 dpchrist at MacBook-Pro ~/MacOS-Foo
> $ cd
>
> 2021-02-11 22:19:01 dpchrist at MacBook-Pro ~
> $ rm -rf perl5
>
> 2021-02-11 22:19:16 dpchrist at MacBook-Pro ~
> $ exit
> logout
> Connection to dpchrist-mbp closed.
>
> 2021-02-11 22:27:17 dpchrist at tinkywinky ~
> $ ssh dpchrist-mbp
> Last login: Thu Feb 11 22:20:29 2021 from 192.168.5.74
> Attempting to create directory /Users/dpchrist/perl5
> -bash: /Users/dpchrist/perl5/perlbrew/etc/bashrc: No such file or directory
>
> The default interactive shell is now zsh.
> To update your account to use zsh, please run `chsh -s /bin/zsh`.
> For more details, please visit https://support.apple.com/kb/HT208050.
>
> 2021-02-11 22:27:21 dpchrist at MacBook-Pro ~
> $ cd MacOS-Foo/
>
> 2021-02-11 22:27:24 dpchrist at MacBook-Pro ~/MacOS-Foo
> $ make realclean
>
> 2021-02-11 22:27:26 dpchrist at MacBook-Pro ~/MacOS-Foo
> $ perl Makefile.PL
> Checking if your kit is complete...
> Looks good
> Generating a Unix-style Makefile
> Writing Makefile for MacOS::Foo
> Writing MYMETA.yml and MYMETA.json
>
>
> So, it was something in ~/perl5.
>
>
> Now I need to reinstall CPAN modules required to build my code.  We'll
> see if I run into the module that breaks ExtUtils::MakeMaker...
>
>
> David
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