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nixpkgs/pkgs/applications/editors/emacs/site-start.el
Nicolas Dudebout 7e7d588ca9 emacs: install the C source from postInstall
Reimplement the C source installation from the derivation instead of
relying on a Makefile patch.
2016-09-27 15:57:52 -04:00

36 lines
1.4 KiB
EmacsLisp

;;; NixOS specific load-path
(setq load-path
(append (reverse (mapcar (lambda (x) (concat x "/share/emacs/site-lisp/"))
(split-string (or (getenv "NIX_PROFILES") ""))))
load-path))
;;; Make `woman' find the man pages
(eval-after-load 'woman
'(setq woman-manpath
(append (reverse (mapcar (lambda (x) (concat x "/share/man/"))
(split-string (or (getenv "NIX_PROFILES") ""))))
woman-manpath)))
;;; Make tramp work for remote NixOS machines
(eval-after-load 'tramp
'(add-to-list 'tramp-remote-path "/run/current-system/sw/bin"))
;;; C source directory
;;;
;;; Computes the location of the C source directory from the path of
;;; the current file:
;;; from: /nix/store/<hash>-emacs-<version>/share/emacs/site-lisp/site-start.el
;;; to: /nix/store/<hash>-emacs-<version>/share/emacs/<version>/src/
(let ((emacs
(file-name-directory ;; .../emacs/
(directory-file-name ;; .../emacs/site-lisp
(file-name-directory load-file-name)))) ;; .../emacs/site-lisp/
(version
(file-name-as-directory
(concat
(number-to-string emacs-major-version)
"."
(number-to-string emacs-minor-version))))
(src (file-name-as-directory "src")))
(setq find-function-C-source-directory (concat emacs version src)))