Re: [PATCH v2 2/9] configure: cross-compiling without cross_prefix

[Joelle van Dyne <j@getutm.app>]

Correct me if I'm wrong but wouldn't the following test still fail
with --cross-prefix=""

if test -n "$cross_prefix"; then
...

That was my main reason for making this change.

-j

On Mon, Oct 19, 2020 at 4:24 AM BALATON Zoltan <balaton@eik.bme.hu> wrote:
>
> On Mon, 19 Oct 2020, Thomas Huth wrote:
> > On 19/10/2020 10.07, Thomas Huth wrote:
> >> On 19/10/2020 03.39, Joelle van Dyne wrote:
> >>> From: osy <osy86@users.noreply.github.com>
> >>>
> >>> The iOS toolchain does not use the host prefix naming convention. We add a
> >>> new option `--enable-cross-compile` that forces cross-compile even without
> >>> a cross_prefix.
> >>>
> >>> Signed-off-by: Joelle van Dyne <j@getutm.app>
> >>> ---
> >>>  configure | 13 ++++++++++++-
> >>>  1 file changed, 12 insertions(+), 1 deletion(-)
> >>>
> >>> diff --git a/configure b/configure
> >>> index 3c63879750..46d5db63e8 100755
> >>> --- a/configure
> >>> +++ b/configure
> >>> @@ -234,6 +234,7 @@ cpu=""
> >>>  iasl="iasl"
> >>>  interp_prefix="/usr/gnemul/qemu-%M"
> >>>  static="no"
> >>> +cross_compile="no"
> >>>  cross_prefix=""
> >>>  audio_drv_list=""
> >>>  block_drv_rw_whitelist=""
> >>> @@ -456,6 +457,11 @@ for opt do
> >>>    optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
> >>>    case "$opt" in
> >>>    --cross-prefix=*) cross_prefix="$optarg"
> >>> +                    cross_compile="yes"
> >>> +  ;;
> >>> +  --enable-cross-compile) cross_compile="yes"
> >>> +  ;;
> >>> +  --disable-cross-compile) cross_compile="no"
> >>
> >> Can't you simply use --cros-prefix="" instead?
> >
> > I mean, still introduce the "cross_compile=yes" variable, just omit the new
> > options.
>
> That seems less intuitive for people trying to find this option. If --help
> lists --enable-cross-compile I can guess what that means but there's no
> way I could guess --cros-prefix="" unless I've been told or searched and
> stumbled upon it. So unless it's a big problem I like the explicit options
> better. Or is that a convention in other projects to use empty prefix to
> enable cross compile that I don't know about?
>
> Regards,
> BALATON Zoltan