Hello, you could notice that after Rawhide upgraded zlib from 1.2.8 to 1.2.11 perl (bug #1420326), perl-Compress-Raw-Zlib (bug #1419841), and perl-IO-Compress (bug #1420012) started failing tests.
The reason is zlib-1.2.9 changed behavior of deflateParams() function and this change propagates to all zlib users. Because perl-Compress-Raw-Zlib tests a Perl wrapper for deflateParams(), perl-Compress-Raw-Zlib build fails. Because perl-IO-Compress is built on top of Compress::Raw::Zlib and it does the same tests, it fails. And perl bundles both of the distributions and thus fails either. I prepared test adjustements, posted them to upstreams, and applied to perl-Compress-Raw-Zlib. But then Paul reported the new tests do not work with ancient zlib version that exist in RHELs. So I looked again at the Compress-Raw-Zlib code and found out there is a deficiency in deflateParams() wrapper. Correct fix that could hide the zlib behavior change for Perl programs and thus eliminite need for patching tests in all the three packages will require more work <https://rt.cpan.org/Public/Bug/Display.html?id=119762>. Because upstream is working on it I believe there will bw proper fix once day. In the mean time, I will patch the tests in Fedora packages because we need buildable perl (we have Fedora mass rebuild, new GCC, some perl bug fixes ahead). I believe patching the tests does not make things worse because the current binary packages are already affected by the new zlib that is already in use. When proper fix is available I will revert the patches. -- Petr
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