Package: libpdfio-dev Version: 1.6.1+dfsg-2 Severity: serious pdfio.pc has this line Requires.private: libpng >= 1.6, zlib
I believe that means that libpdfio-dev needs Depends: libpng-dev I noticed this by running the autopkgtest locally. I was surprised that this autopkgtest was passing in ci.debian.net. I then looked to Ubuntu and it appears that this failure is triggered by pkgconf 2.5, currently in Unstable but not in Testing yet. https://autopkgtest.ubuntu.com/packages/pdfio/resolute/amd64 autopkgtest excerpt =============== Package libpng was not found in the pkg-config search path. Perhaps you should add the directory containing `libpng.pc' to the PKG_CONFIG_PATH environment variable Package 'libpng', required by 'pdfio', not found autopkgtest [18:20:45]: test testsuite: -----------------------] autopkgtest [18:20:45]: test testsuite: - - - - - - - - - - results - - - - - - - - - - testsuite FAIL non-zero exit status 1 Thank you, Jeremy Bícha

