Pick up libffi 3.4.4 version. Done similarly to how @ry changed over from a submodule to manual copy earlier, I just copied over the libffi-3.4.4.tar.gz file and replaced the libffi folder with the new tar's contents.
This also includes my build-fix update for GCC 9 and Rust 1.48 removal from macOS build matrix. That can be dropped once the other PR is merged.
FYI: This version update is not from any strong need, I just figured it's not a bad idea to update to most recent as there have been some apparently important fixes.
Pick up libffi 3.4.4 version. Done similarly to how @ry changed over from a submodule to manual copy earlier, I just copied over the
libffi-3.4.4.tar.gz
file and replaced the libffi folder with the new tar's contents.This also includes my build-fix update for GCC 9 and Rust 1.48 removal from macOS build matrix. That can be dropped once the other PR is merged.