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Look for practice to include (pkg-version) in Emacs package.

From: Oleksandr Gavenko
Subject: Look for practice to include (pkg-version) in Emacs package.
Date: Tue, 15 Nov 2011 01:46:48 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.91 (windows-nt)

I look to '':

  (defconst jabber-version "@PACKAGE_VERSION@"
    "version returned to those who query us")
  (provide 'jabber-ourversion)

I look to AUCTeX:

  (defconst AUCTeX-version "@AUCTEXVERSION@" ...

This seems good, but require processing sources with M4.

Currently I have single .el file which have version components:

  ;; Author: Oleksandr Gavenko
  ;; Created: 2011-11-12
  ;; Version: 0.1
  ;;; Code:

  (defconst jdone-major-version 0
    "jdone major version.")
  (defconst jdone-minor-version 1
    "jdone minor version.")

I prepare code that extract version from Mercurial tags in Makefile:

  include VERSION

      ver=$$(hg log -r . --template '{latesttag}'); \
  ver=$${ver#t}; \
  major=$${ver%.*}; \
  minor=$${ver#*.}; \
  printf "vmajor=%s\nvminor=%s\n" $$major $$minor >VERSION

How integrate vmajor, vminor in my package?

Rename jdone.el to and process it with M4?

Too complicate for not so important/critical thing like version...

Provide separate file for version data?

After that I can not post jdone.el to emacswiki directly...

Are there exist practice to preprocess .el files?

Any one uses complex M4 macros in files (more complex then @bindir@)?
Seems no one:$

Best regards!

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