diff options
Diffstat (limited to 'pkgs/applications/editors/emacs/build-support/emacs-funcs.sh')
-rw-r--r-- | pkgs/applications/editors/emacs/build-support/emacs-funcs.sh | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/pkgs/applications/editors/emacs/build-support/emacs-funcs.sh b/pkgs/applications/editors/emacs/build-support/emacs-funcs.sh new file mode 100644 index 0000000000000..e1e6a3b622087 --- /dev/null +++ b/pkgs/applications/editors/emacs/build-support/emacs-funcs.sh @@ -0,0 +1,34 @@ +addToEmacsLoadPath() { + local lispDir="$1" + if [[ -d $lispDir && ${EMACSLOADPATH-} != *"$lispDir":* ]] ; then + # It turns out, that the trailing : is actually required + # see https://www.gnu.org/software/emacs/manual/html_node/elisp/Library-Search.html + export EMACSLOADPATH="$lispDir:${EMACSLOADPATH-}" + fi +} + +addToEmacsNativeLoadPath() { + local nativeDir="$1" + if [[ -d $nativeDir && ${EMACSNATIVELOADPATH-} != *"$nativeDir":* ]]; then + export EMACSNATIVELOADPATH="$nativeDir:${EMACSNATIVELOADPATH-}" + fi +} + +addEmacsVars () { + addToEmacsLoadPath "$1/share/emacs/site-lisp" + + if [ -n "${addEmacsNativeLoadPath:-}" ]; then + addToEmacsNativeLoadPath "$1/share/emacs/native-lisp" + fi + + # Add sub paths to the Emacs load path if it is a directory + # containing .el files. This is necessary to build some packages, + # e.g., using trivialBuild. + for lispDir in \ + "$1/share/emacs/site-lisp/"* \ + "$1/share/emacs/site-lisp/elpa/"*; do + if [[ -d $lispDir && "$(echo "$lispDir"/*.el)" ]] ; then + addToEmacsLoadPath "$lispDir" + fi + done +} |