Re: [External] : emacs-28 windows binaries available from alpha

[H. Dieter Wilhelm]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: "H. Dieter Wilhelm" <dieter@duenenhof-wilhelm.de>
>> Cc: Drew Adams <drew.adams@oracle.com>,  Andrea Corallo <akrl@sdf.org>,
>>   corwin@bru.st,  emacs-devel@gnu.org
>> Date: Sat, 05 Feb 2022 10:22:26 +0100
>> 
>> On a Windows system WITH ligccjit I could load Drew's .elc file without
>> an error.
>> 
>> Then I added his .el file in the same folder and reloaded the .elc file
>> (with load-file).  I was expecting that Emacs would create a respective
>> .eln file in this situation.  But it didn't.
>
> Please repeat this experiment in a fresh Emacs session, started
> when the .el file is already available...
>
>>   Loading d:/tmp/Corwin/strings.elc (compiled; note, source file is
>>   newer)...done
>
> ...and make sure the .elc file is newer, not older, than the .el file.

"Touched" and loaded strings.elc.

  -rw-r--r-- 1 uidg1626 Domain Users 34051 Feb  5 10:04 strings.el
  -rw-r--r-- 1 uidg1626 Domain Users 22756 Feb  5 16:54 strings.elc

But it seems that string.el wasn't compiled, I can't see it in
*Asysnc-native-compile-log* neither in eln-cache!?

>> Does this mean that Emacs - by default - is only natively compiling .el
>> files which are from Emacs' tree and (M)elpa packages?
>
> No.  Emacs should natively compile any .el file when its .elc file is
> loaded, provided that (a) the .el file can be found, and (b) the .el
> file is older than the .elc file.

Might it work when the .el files are in PATH or in Emacs' tree?

>> When (load-file)ing the .el file then Emacs compiled the cl.el library.

>>   *Asyn-native-compoile-log* Compiling
>>   d:/tmp/Corwin/2022-02-04/share/emacs/28.0.91/lisp/obsolete/cl.el...
>> 
>>   *Messages* Loading d:/tmp/Corwin/strings.el (source)...
>>   d:/tmp/Corwin/strings.el: Warning: ‘psetq’ is an obsolete alias (as of
>>   27.1); use ‘cl-psetq’ instead.
>
> As expected.  When you load a file with an explicit .el extension,
> Emacs will not natively compile that file -- this is a feature.

Good to know, thank you

--
        Dieter