[Bug target/123460] aarch64: configure --with-arch incorrectly rejects extension names containing hyphens

[acarlotti at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123460

Alice Carlotti <acarlotti at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2026-01-07
             Status|UNCONFIRMED                 |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |acarlotti at gcc dot gnu.org
     Ever confirmed|0                           |1