Sure, here's the gist of it with some unrelated stuff removed. This was made for Ubuntu 18.04, but the deb will work on 20.04 as well. apt-get update a

Sure, here's the gist of it with some unrelated stuff removed. This was made for Ubuntu 18.04, but the deb will work on 20.04 as well. apt-get update apt-get install -y git software-properties-common make checkinstall autoconf texinfo add-apt-repository -y ppa:ubuntu-toolchain-r/ppa add-apt-repository -y ppa:ubuntu-toolchain-r/test apt-get update apt-get install -y gcc-10 g++-10 libgccjit0 libgccjit-10-dev libjansson4 libjansson-dev libgtk-3-dev apt-get install -y libjpeg-dev libxpm-dev libgif-dev libtiff-dev libgnutls28-dev libncurses-dev update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 10 update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-10 10 git clone --depth=1 git://git.sv.gnu.org/emacs.git --branch=master # or use emacs-28.1 or whatever tag cd emacs || exit ./autogen.sh ./configure \ --with-cairo \ --with-gnutls \ --with-harfbuzz \ --with-jpeg \ --with-json \ --with-mailutils \ --with-modules \ --with-native-compilation \ --with-pgtk \ --with-png \ --with-rsvg \ --with-tiff \ --with-wide-int \ --with-x-toolkit=gtk3 \ --with-xft \ --with-xml2 \ --with-xpm \ --without-compress-install \ --without-gconf \ --without-gsettings \ --without-imagemagick \ --without-toolkit-scroll-bars \ --without-xaw3d \ --without-xwidgets \ CFLAGS="-O3 -mtune=native -march=native -fomit-frame-pointer" \ prefix=/usr/local make -j"$(nproc)" NATIVE_FULL_AOT=1 checkinstall -y -D --install=no \ --pkgname=${pkgname}-nativecomp \ --pkgversion=1"$(git rev-parse --short HEAD)" \ --requires="libjansson-dev,libharfbuzz-dev,libgccjit-10-dev" \ --pkggroup=emacs \ --gzman=yes \ make install-strip