CODEWITHSUNDEEP
emacselisp
asr
asr

Reputation: 1186

Batch-generate Emacs byte-compiled files in a custom directory

I'm generating byte-compiled files (*.elc) using the batch-byte-compile function. This function writes out the *.elc files in the same directory as the *.el files.

How can I have Emacs generate the byte-compiled files in a different directory?

An ideal solution would be operational system agnostic.

Upvotes: 1

Views: 209

Answers (1)

JB.
JB.

Reputation: 42094

Emacs uses byte-compile-dest-file to generate a compiled file name from a source file name. That function delegates to customizable variable byte-compile-dest-file-function if non-nil.

So you can simply define it. Something like this:

(defun my-byte-compile-dest-file (source-file)
  (concat (file-name-directory source-file)
          "prefix-"
          (file-name-base source-file)
          "-compiled"))
(setq byte-compile-dest-file-function 'my-byte-compile-dest-file)

Upvotes: 2

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