Fix build with libpng>=1.6.41 (!1) · Merge requests · Arch Linux / Packaging / Packages / pngcrush · GitLab

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Pascal Ernster requested to merge hardfalcon/pngcrush:fix-build-with-libpng-1.6.41 into main Sep 19, 2024

Libpng 1.6.41 removed support for PNG_IGNORE_ADLER32, which broke compiling pngcrush:

https://github.com/pnggroup/libpng/commit/269b753496180cdb3082d87b0cd907905593dee5

Upstream bug report: https://sourceforge.net/p/pmt/bugs/82

Fix this with an #ifdef.