[Bug target/122535] PowerPC: --with-long-double-64 ignored during configure

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122535

--- Comment #1 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by kishan parmar <kishan@gcc.gnu.org>:

https://gcc.gnu.org/g:0367500f385f57f93e01e09b27b0a3b3c7695dd6

commit r17-3842-g0367500f385f57f93e01e09b27b0a3b3c7695dd6
Author: Kishan Parmar <kishan@linux.ibm.com>
Date:   Wed Sep 2 12:10:30 2026 +0530

    configure: reject unsupported --with-long-double-64 option [PR122535]

    Configure script previously accepted  unsupported  --with-long-double-64
    option  without  any  warning, leading  to  confusion.  This  option was
    mistakenly  documented in install.texi  but never  handled by  configure
    script, resulting in it being silently ignored.

    Patch updates configure script to error out  when  --with-long-double-64
    or --without-long-double-64  is  used, and instructs to use  the correct
    --without-long-double-128 or --with-long-double-128 option instead.

    Additionally, the mistaken  documentation  reference in install.texi has
    been corrected to reflect the actual supported option.

    2026-09-02  Peter Bergner  <bergner@gcc.gnu.org>

    ChangeLog:
            PR target/122535
            * configure.ac: Error out on --with-long-double-64.
            * configure: Regenerate.

    gcc/ChangeLog:
            * doc/install.texi: Remove incorrect mention of
--with-long-double-64.
            Co-authored-by: Kishan Parmar <kishan@linux.ibm.com>