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Update README.md

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James Cherti
2025-09-05 17:36:39 -04:00
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@@ -106,6 +106,7 @@ In addition to *minimal-emacs.d*, startup speed is influenced by your computer's
- [How to get the latest version of all packages? (unstable)](#how-to-get-the-latest-version-of-all-packages-unstable) - [How to get the latest version of all packages? (unstable)](#how-to-get-the-latest-version-of-all-packages-unstable)
- [How to use MELPA stable?](#how-to-use-melpa-stable) - [How to use MELPA stable?](#how-to-use-melpa-stable)
- [How to load a local lisp file for machine-specific configurations?](#how-to-load-a-local-lisp-file-for-machine-specific-configurations) - [How to load a local lisp file for machine-specific configurations?](#how-to-load-a-local-lisp-file-for-machine-specific-configurations)
- [How to prevent Emacs from automatically recompiling some Elisp files?](#how-to-prevent-emacs-from-automatically-recompiling-some-elisp-files)
- [How to load Emacs customizations?](#how-to-load-emacs-customizations) - [How to load Emacs customizations?](#how-to-load-emacs-customizations)
- [How to increase gc-cons-threshold?](#how-to-increase-gc-cons-threshold) - [How to increase gc-cons-threshold?](#how-to-increase-gc-cons-threshold)
- [How to prevent Emacs from loading .dir-locals.el files?](#how-to-prevent-emacs-from-loading-dir-localsel-files) - [How to prevent Emacs from loading .dir-locals.el files?](#how-to-prevent-emacs-from-loading-dir-localsel-files)
@@ -2003,6 +2004,31 @@ This allows `local.el` to load, enabling custom configurations specific to the m
(Ensure that `local.el` is in the same directory as `post-init.el`.) (Ensure that `local.el` is in the same directory as `post-init.el`.)
### How to prevent Emacs from automatically recompiling some Elisp files?
In some Emacs configurations, certain files may be repeatedly recompiled during startup or loading:
```elisp
Compiling /snap/emacs/current/usr/share/emacs/lisp/org/org-loaddefs.el.gz...
Compiling /snap/emacs/current/usr/share/emacs/etc/themes/modus-vivendi-theme.el...
```
This happens because Emacs attempts native compilation on certain Elisp files. In many cases, you may want to prevent native compilation for specific files.
You can configure Emacs to skip native compilation for files matching a list of regular expression patterns by setting `native-comp-jit-compilation-deny-list`. Here is an example:
```elisp
(let ((deny-list '("\\(?:[/\\\\]\\.dir-locals\\.el\\(?:\\.gz\\)?$\\)"
"\\(?:[/\\\\]modus-vivendi-theme\\.el\\(?:\\.gz\\)?$\\)"
"\\(?:[/\\\\][^/\\\\]+-loaddefs\\.el\\(?:\\.gz\\)?$\\)"
"\\(?:[/\\\\][^/\\\\]+-autoloads\\.el\\(?:\\.gz\\)?$\\)")))
(setq native-comp-jit-compilation-deny-list deny-list)
;; Deprecated
(with-no-warnings
(setq native-comp-deferred-compilation-deny-list deny-list)
(setq comp-deferred-compilation-deny-list deny-list)))
```
This deny list causes Emacs to skip native compilation for files matching these patterns, avoiding unnecessary or problematic recompilation while allowing all other files to be compiled as usual.
### How to load Emacs customizations? ### How to load Emacs customizations?
To load customizations saved by Emacs (`M-x customize`), add the following code snippet to the `post-init.el` file. This ensures that the custom file, typically set to a separate file for user preferences, is loaded without errors or messages during startup: To load customizations saved by Emacs (`M-x customize`), add the following code snippet to the `post-init.el` file. This ensures that the custom file, typically set to a separate file for user preferences, is loaded without errors or messages during startup: