[PATCH weston] configure.ac: honour the wayland-scanner.pc

[Emil Velikov]

On 16 February 2015 at 13:04, Andrew Oakley <aoakley at espial.com> wrote:
> On 10/02/15 14:42, Emil Velikov wrote:
>> Currently we use the wayland-scanner executable as found with
>> AC_PATH_PROG, and after that check the presence of wayland-scanner.pc
>>
>> Even if the latter is pointing to another wayland-scanner we silently
>> ignore it. Rework things to check for the relevant variable in the *.pc
>> file first, and then fall back to checking via AC_PATH_PROG.
>
> I'm not sure this works when cross compiling.  What you really want to
> do is look for wayland-scanner on the build machine rather than the
> target.  With these changes we will try and run wayland-scanner for the
> target (assuming it has been built).
>
Imho one should not build/install wayland-scanner for the target
machine. It makes little to no sense considering it's designed/meant
to be ran at build time. That said I'm not familiar with the way
people handle/build wayland so my thinking may be a bit off :P

That aside - the common direction is towards checking via AC_PATH_PROG
and using the wayland-scanner.pc as a fall-back.
So let's cook something up.

-Emil