Re: warnings compiling emacs28 with gcc 12.1

[Lars Ingebrigtsen]

"Jose A. Ortega Ruiz" <jao@gnu.org> writes:

> Fair enough.  A curious fact is that the master branch compiles cleanly
> with the same GCC version, without any warning at all in fact.  I guess
> someone already took the time to pacify non-sense warnings.

Yes, they were fixed on the trunk by:

commit 0f731c49e6a8ccf3aa4c30c3f8ca82ed0a2cefb7
Author:     Paul Eggert <eggert@cs.ucla.edu>
AuthorDate: Thu May 12 17:01:10 2022 -0700

    Pacify GCC 12 in default developer build

For instance:

    * src/term.c (Fsuspend_tty): Don’t look at a pointer after freeing
    it, even just to test it for equality with some other pointer, as
    this has undefined behavior in C and GCC 12 diagnoses this.