[sr #111221] _AC_DEFINE_UNQUOTED has broken regex

Eric Blake <[email protected]> Mon, 7 Apr 2025 11:59:11 -0400 (EDT)

Newsgroups	gmane.comp.sysutils.autoconf.bugs
Message-ID	<[email protected]>

Follow-up Comment #1, sr #111221 (group autoconf):

[comment #0 original submission:]
> Captured from
> https://lists.gnu.org/archive/html/bug-m4/2025-04/msg00027.html. It looks
> like the existing regex of _AC_DEFINE_UNQUOTED searches for the literal
> 8-byte string "(|{|@S|@" when it really wanted to search for the alternation
> of any of the following three strings "(" "{" "@S|@".

Correcting my typo: I'm referring to the second half with quadrigraph @(:@ for
{ (but typed @S|@ which is for $, from the first half).




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