TLDR: libcamera checks the signatures of its own libraries, when loading them, grafts are enabled by default in Guix, grafted libraries fails to pass the check.
The full story: For the last a few days I was updating and fixing libcamera package. The last problem I faced with it is invalid signatures: [0:44:16.200646504] [17247] DEBUG IPAManager ipa_manager.cpp:316 IPA module /gnu/store/pfh7adzzy8akkqsjj4wlnmvmbzmrfbvk-libcamera-0.3.1/lib/libcamera/ipa_soft_simple.so signature is not valid The full log: https://paste.sr.ht/~abcdw/09e6d4aa66c8fb70a1e8e7e91bfef4cae5aa4e24#cam2.log I thought it was because of grafts and tried to build it with --no-grafts, it didn't help. After that I realized that the signature created during install phase and before strip phases. I added a phase after 'shrink-runpath and it helped: https://git.savannah.gnu.org/cgit/guix.git/commit/?id=4a19fe41c3 qcam now shows the image, after that I removed --no-grafts flag and built the package again and the problem came back (now because of grafts). The issue with related discussion in libcamera backtracker: https://bugs.libcamera.org/show_bug.cgi?id=231 How we can solve or workaround this problem? -- Best regards, Andrew Tropin
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