[systemd-devel] [PATCH 1/5] configure.ac: Add option to disable configuring the BIOS test

[Kay Sievers]

On Wed, Aug 21, 2013 at 8:13 PM, Darren Hart <dvhart at linux.intel.com> wrote:
> When cross-compiling, AC_CHECK_FILE aborts configure. Provide a means to
> avoid even attempting to configure the BIOS test.
>
> Signed-off-by: Darren Hart <dvhart at linux.intel.com>
> ---
>  configure.ac | 10 +++++++---
>  1 file changed, 7 insertions(+), 3 deletions(-)
>
> diff --git a/configure.ac b/configure.ac
> index ca5a383..6ee4520 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -66,9 +66,13 @@ AC_SUBST([ARCH])
>  AC_SUBST([MACHINE_TYPE_NAME])
>
>  # test bios
> -AC_CHECK_FILE([/usr/lib/qemu-bios],        [BIOS=/usr/lib/qemu-bios])
> -AC_CHECK_FILE([/usr/share/qemu-ovmf/bios], [BIOS=/usr/share/qemu-ovmf/bios])
> -AC_SUBST([BIOS])
> +AC_ARG_ENABLE(biostest, AS_HELP_STRING([--disable-biostest], [disable building BIOS test]))
> +if test "x$enable_biostest" != "xno"; then
> +       AC_CHECK_FILE([/usr/lib/qemu-bios],        [BIOS=/usr/lib/qemu-bios])
> +       AC_CHECK_FILE([/usr/share/qemu-ovmf/bios], [BIOS=/usr/share/qemu-ovmf/bios])
> +       AC_SUBST([BIOS])
> +fi
> +AM_CONDITIONAL(ENABLE_BIOSTEST, [test "x$enable_biostest" = "xyes"])

This is commonly done with $cross_compiling. Any specific reason to
have a new switch?
  http://www.gnu.org/software/autoconf/manual/autoconf.html#index-cross_005fcompiling-1186

Kay