Re: [PATCH] configure: remove dependencies on gmp and mpfr when gdb is disabled

["Clément Chigot" <chigot@adacore.com>]

On Fri, Jan 6, 2023 at 9:39 AM Clément Chigot <chigot@adacore.com> wrote:
>
> Since 91e0d22025e0bf2af2e364cb7214a05512a0c431, the configure checks
> about GMP and MPFR for gdb builds have been moved to the toplevel
> configure.
> However, it doesn't take into account the --disable-gdb option. Meaning
> that a build without gdb will require these libraries even if not
> needed.
>
> ChangeLog:
>
>         * configure.ac: Skip GMP and MPFR when --disable-gdb is
>         provided.
>         * configure: Regenerate.
> ---
>  configure    | 4 +++-
>  configure.ac | 4 +++-
>  2 files changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/configure b/configure
> index d6716e38e99..85883099410 100755
> --- a/configure
> +++ b/configure
> @@ -7913,7 +7913,9 @@ if test -d ${srcdir}/gcc ; then
>    require_mpc=yes
>  fi
>  if test -d ${srcdir}/gdb ; then
> -  require_gmp=yes
> +  if test "x$enable_gdb" != xno; then
> +   require_gmp=yes
> +  fi
>  fi
>
>  gmplibs="-lmpfr -lgmp"
> diff --git a/configure.ac b/configure.ac
> index 737c1a1172b..2b612dce6e9 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -1489,7 +1489,9 @@ if test -d ${srcdir}/gcc ; then
>    require_mpc=yes
>  fi
>  if test -d ${srcdir}/gdb ; then
> -  require_gmp=yes
> +  if test "x$enable_gdb" != xno; then
> +   require_gmp=yes
> +  fi
>  fi
>
>  gmplibs="-lmpfr -lgmp"
> --
> 2.25.1

This patch has already been merged in the binutils repository see [1].

[1] https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=5fb0e308577143ceb313fde5538dc9ecb038f29f

Thanks,
Clément