The following worked for me:
Build dependencies (all in the AUR): python2 (disable check, or it will fail to build); python2-setuptools; python2-dbus (just for notification that the build finished; can probably be patched away)
According to forum.palemoon.org, the python2 dependency cannot be gotten rid of. And you need to patch Pale-Moon/platform/media/ffvpx/libavcodec/x86/mathops.h (using binutils-2.41.patch, supplied with ffmpeg4.4).
cd Pale-Moon/platform/media/ffvpx/libavcodec; patch -Np2 < /path/to/binutils-2.41.patch
Pinned Comments
WorMzy commented on 2021-03-02 16:19 (UTC) (edited on 2022-08-03 21:12 (UTC) by WorMzy)
The following key is used to sign release commits:
40481E7B8FCF9CEC
Import it into your keyring however you want.
https://wiki.archlinux.org/index.php/GnuPG#Import_a_public_key