The upstream release of libpng, 1.6.41, changed the result true<->false in the public API png_check_sig, consequently any app or library built against this new release which uses the API will fail on PNG tests. This only happens when the app or library itself is built; the error in the header file is in a macro definition. Thus if an app is rebuilt the error "frozen" and a rebuild is required. The bug is here: https://github.com/pnggroup/libpng/issues/534 The proposed fix is to release 1.6.42 (which has other changes): https://github.com/pnggroup/libpng/commit/ac944e2b364cff96e8458110c2ad06a63f8543b3 There is a new release (apparently) of 1.6.42 Because this is a sticky problem and will be very difficult to apps/libraries which hit it to work out (i.e. this is a bug farm). 1.6.41-r1 with the above commit will fix the issue as will just the change to line 919 of png.h (the other changes are new comments). 1.6.42 is in the process of being released. Reproducible: Always
Thank you for the heads-up John! I'll handle it now.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=980938b537dc1d6dadfd4beb78b436e3638bc53c commit 980938b537dc1d6dadfd4beb78b436e3638bc53c Author: Sam James <sam@gentoo.org> AuthorDate: 2024-01-30 07:39:58 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2024-01-30 07:39:58 +0000 media-libs/libpng: fix png_check_sig ABI break Thank you to John Bowler for the heads-up. Closes: https://bugs.gentoo.org/923298 Signed-off-by: Sam James <sam@gentoo.org> .../files/libpng-1.6.41-png_check_sig-abi.patch | 94 ++++++++++++++++++++++ ...ibpng-1.6.41.ebuild => libpng-1.6.41-r1.ebuild} | 4 + 2 files changed, 98 insertions(+)
Thank you John. I'll handle the bump to 1.6.42 later today too.
