https://ftp.mozilla.org/pub/firefox/releases/81.0/source/firefox-81.0.source.tar.xz https://ftp.gnu.org/gnu/autoconf/autoconf-2.13.tar.gz autoconf2.13/ https://www.tortall.net/projects/yasm/releases/yasm-1.3.0.tar.gz yasm/ patches/no-gtk2.patch