I’m trying to install MongoDB for Strawberry Perl 5.26.0:

This is perl 5, version 26, subversion 0 (v5.26.0) built for MSWin32-x
+64-multi-thread-ld
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under Windows 8.1 64-bit. One of MongoDB’s dependencies is BSON. which not only fails to install but actually crashes the Perl interpreter while doing so.

After some debugging I eventually reduced the problem code to the following SSCCE:

use strict;
use warnings;
use JSON::MaybeXS;

my        $json_codec = JSON::MaybeXS->new;
print ref $json_codec, "\n";
print     $json_codec->encode( { d => 1.0 } ), "\n";
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Note that I have the following modules installed:

16:27 >mversion -f JSON::MaybeXS Cpanel::JSON::XS JSON::XS JSON::PP
JSON::MaybeXS 1.003009
Cpanel::JSON::XS 3.0233
JSON::XS 3.04
JSON::PP 2.94

16:27 >
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Now to the point: when I run the SSCCE, I get the following output:

19:26 >perl 1800_SoPW.pl
Cpanel::JSON::XS
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and the Perl interpreter crashes. But if I change the JSON module:

19:26 >perl -MJSON::XS 1800_SoPW.pl
JSON::XS
{"d":1}

19:27 >
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the code completes successfully. I have also tested the SSCCE on Strawberry Perl 5.24.1, and it runs without a problem:

16:37 >perl 1800_SoPW.pl
Cpanel::JSON::XS
{"d":1.0}

16:38 >
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So, I have two sets of questions:

(1) Can other monks confirm this behaviour under Perl 5.26.0? If so, is it confined to Windows or does it occur on other platforms as well? And does anyone know of a change from 5.24 to 5.26 which could account for this? Should I report it as a bug under Cpanel::JSON::XS?

(2) Until the bug is fixed, what’s the best way to prevent JSON::MaybeXS from defaulting to Cpanel::JSON::XS? I can add -MJSON::XS to the command line when invoking a Perl script directly, but how can I get cpanm to do this? Or will I need to uninstall Cpanel::JSON::XS from my system?

Thanks,