bug#50285: 28.0.50; Mew dosen't work correctly if .el files of Mew are native compiled

[Stefan Monnier]

Eli Zaretskii [2021-08-31 15:05:14] wrote:

>> Cc: 50285@debbugs.gnu.org
>> Date: Mon, 30 Aug 2021 17:02:08 -0400
>> From:  Stefan Monnier via "Bug reports for GNU Emacs,
>>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
>> 
>> So we really have 3 problems here:
>> 
>> 1- The code in Mew should not rely on the makefile rule for
>>    correct compilation.
>>    Fixing this would also make it easier to distribute Mew via ELPA
>>    (where a similar problem shows up since package.el will compile the
>>    .el files in an unspecified order which could thus result in the
>>    same kind of miscompilation).
>> 
>> 2- The generation of the `.eln` file should start from the `.elc` file
>>    rather than from the `.el` file because we sometimes lack the
>>    information needed to correctly re-generate the `.elc` file from the
>>    `.el` file.
>
> And 3?...

The third problem is the well-known off-by-one,


        Stefan