bug#19603: 24.4.51; Improve emacs startup message.

[Noam Postavsky]

close 19603
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Thierry Volpiatto <thierry.volpiatto@gmail.com> writes:

> Stefan Monnier <monnier@IRO.UMontreal.CA> writes:
>
>>> Now emacs packages are widely used,
>>> it would be great to improve the startup message of emacs with a link
>>> about how to quickly setup package.el to be usable.
>>> I have regularly people complaining "It is not working" because
>>> they install packages through package.el and they don't add in their
>>> init file `package-initialize',
>>
>> Right, we do call package-initialize automatically for them, but we do
>> it "too late" in many cases.  Maybe the best option is to emit some
>> message at startup in the following case:
>> - there are packages installed.
>> - the .emacs file is non-empty.
>> - there is no call to package-initialize in the .emacs file.
>
> Yeah, anything will be good as long as they are warned.

The package-initialize problem is now solved in master in a different
way (such that nothing extra needs to be added for the typical case).

[1: 24acb31c04]: 2018-02-17 13:36:16 +0200
  Add early init file, stop package-initialize insertion
  
https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=24acb31c04b4048b85311d794e600ecd7ce60d3b