[Bug other/103021] Make the path to etags used in the build system configurable

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103021

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Eric Gallager <egalla...@gcc.gnu.org>:

https://gcc.gnu.org/g:909b30a17e71253772d2cb174d0dae6d0b8c9401

commit r12-5581-g909b30a17e71253772d2cb174d0dae6d0b8c9401
Author: Eric Gallager <egalla...@gcc.gnu.org>
Date:   Mon Nov 29 13:24:12 2021 -0500

    Make etags path used by build system configurable

    This commit allows users to specify a path to their "etags"
    executable for use when doing "make tags".
    I based this patch off of this one from upstream automake:
   
https://git.savannah.gnu.org/cgit/automake.git/commit/m4?id=d2ccbd7eb38d6a4277d6f42b994eb5a29b1edf29
    This means that I just supplied variables that the user can override
    for the tags programs, rather than having the configure scripts
    actually check for them. I handle etags and ctags separately because
    the intl subdirectory has separate targets for them. This commit
    only affects the subdirectories that use handwritten Makefiles; the
    ones that use automake will have to wait until we update the version
    of automake used to be 1.16.4 or newer before they'll be fixed.

    Addresses #103021

    gcc/ChangeLog:

            PR other/103021
            * Makefile.in: Substitute CTAGS, ETAGS, and CSCOPE
            variables. Use ETAGS variable in TAGS target.
            * configure: Regenerate.
            * configure.ac: Allow CTAGS, ETAGS, and CSCOPE
            variables to be overridden.

    gcc/ada/ChangeLog:

            PR other/103021
            * gcc-interface/Make-lang.in: Use ETAGS variable in
            TAGS target.

    gcc/c/ChangeLog:

            PR other/103021
            * Make-lang.in: Use ETAGS variable in TAGS target.

    gcc/cp/ChangeLog:

            PR other/103021
            * Make-lang.in: Use ETAGS variable in TAGS target.

    gcc/d/ChangeLog:

            PR other/103021
            * Make-lang.in: Use ETAGS variable in TAGS target.

    gcc/fortran/ChangeLog:

            PR other/103021
            * Make-lang.in: Use ETAGS variable in TAGS target.

    gcc/go/ChangeLog:

            PR other/103021
            * Make-lang.in: Use ETAGS variable in TAGS target.

    gcc/objc/ChangeLog:

            PR other/103021
            * Make-lang.in: Use ETAGS variable in TAGS target.

    gcc/objcp/ChangeLog:

            PR other/103021
            * Make-lang.in: Use ETAGS variable in TAGS target.

    intl/ChangeLog:

            PR other/103021
            * Makefile.in: Use ETAGS variable in TAGS target,
            CTAGS variable in CTAGS target, and MKID variable
            in ID target.
            * configure: Regenerate.
            * configure.ac: Allow CTAGS, ETAGS, and MKID
            variables to be overridden.

    libcpp/ChangeLog:

            PR other/103021
            * Makefile.in: Use ETAGS variable in TAGS target.
            * configure: Regenerate.
            * configure.ac: Allow ETAGS variable to be overridden.

    libiberty/ChangeLog:

            PR other/103021
            * Makefile.in: Use ETAGS variable in TAGS target.
            * configure: Regenerate.
            * configure.ac: Allow ETAGS variable to be overridden.