Created attachment 7066 [details] Patch to apply to fbgrab 1.3 fbgrab 1.3 won't build with BR2_REPRODUCIBLE set. This is due to GZIP macro usage in the source Makefile. gzip itself uses GZIP environment variable as parameters, so it thinks it has the file gzip to compile.
fbgrab upstream isn't very active, so it is unlikely that we can get the fix integrated in the near future. I've submitted a simpler patch that simply doesn't compress the (unused) man page instead: https://patchwork.ozlabs.org/patch/763602/
Fixed by https://git.buildroot.org/buildroot/commit/?id=be8d1efd1e5b8c4ceed34e8144d2cac075ab364e.