When I run ./configure, the configure script errors with: cd emacs git checkout feature/native-comp ./autogen.sh ./configure --with-nativecomp configure: error: Installed libgccjit has failed passing the smoke test. I’ve taken the liberty of writing a Dockerfile that demonstrates how to do it with Ubuntu 20.04 . It’s very likely this feature will make it into Emacs 28, but that is years away. I’ve been using Emacs 27 since around late January. Native compilation of Emacs Lisp on track to be merged into master, maintainers 'would like to see it in Emacs 28' The main development continues in the master branch (as 28.0.50) whereas the emacs-27 branch will only receive bugfix commits. The build produced does have some limitations: It is not a universal application. They compare the execution time of the benchmarks when byte-compiled and run under the vanilla Emacs 28 from master branch against their native-compiled versions at comp_speed 3. The optimized native-code allows all the benchmarks to run at least two times faster, with most of them reaching much higher PDF | Emacs Lisp (Elisp) is the Lisp dialect used by the Emacs text editor family. master branch (Emacs 28.x) feature/native-comp branch (Emacs 28.x) For reference, my machine is: 13-inch MacBook Pro (2020), 10th-gen 2.3 GHz Quad-Core Intel Core i7 (4c/8t) macOS 10.15.6 (19G2021) Xcode 12.0; Limitations. The native-compiled benchmarks are run under Emacs compiled and bootstrapped at comp_speed 2 from the same revision of the codebase. I'm using Emacs 28/native-comp on Debian Stable. I want to compile the gccemacs branch of Emacs. Main reasons are native JSON parsing which speeds up lsp-mode, and the new built-in display-fill-column-indicator-mode to replace the fill-column-indicator package (fci-mode) which I’d been using for years.The new built-in mode performs better and doesn’t conflict with some packages like fci-mode does. This is an issue with DOOM, and maybe specifically with Emacs 28. I also recommend checking out emacs-pgtk-native-comp-git, this combines native compilation with a new rendering engine for an even faster Emacs. Like every major Emacs release, 27.1 packs a lot of new features. Now there's a separate branch for emacs 27 which is going to be released anytime soon (in emacs terms). vgivanovic commented on 2020-08-24 05:09 No matter what I did, I kept on failing the libgccjit smoke test because I had installed gcc-10.2.0-1 and gcc-libs-10.2.0-1 when libgccjit was only at 10.1.0.-1. Emacs 28 from master branch against their native-compiled ver-sions at comp_speed 3. As the feature’s not mainlined yet, you’ll have to compile it yourself. The long wait is over!1 Emacs 27.1 was finally released a couple of days ago! The native-compiled benchmarks are run under Emacs compiled and bootstrapped at comp_speed 2 from the same revision of the codebase. 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2020 emacs 28 native