23 lines
1.1 KiB
Text
23 lines
1.1 KiB
Text
One recurring problem in modules that use Scalar::Util's weaken function is
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that it is not present in the pure-perl variant.
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While this isn't necessarily always a problem in a straight CPAN-based Perl
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environment, some operating system distributions only include the pure-Perl
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versions, don't include the XS version, and so weaken is then "missing" from
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the platform, despite passing a dependency on Scalar::Util successfully.
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Most notably this is RedHat Linux at time of writing, but other come and go
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and do the same thing, hence "recurring problem".
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The normal solution is to manually write tests in each distribution to ensure
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that weaken is available.
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This restores the functionality testing to a dependency you do once in your
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Makefile.PL, rather than something you have to write extra tests for each
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time you write a module.
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It should also help make the package auto-generators for the various
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operating systems play more nicely, because it introduces a dependency that
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they have to have a proper weaken in order to work.
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WWW: http://search.cpan.org/dist/Task-Weaken/
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