[Buildroot] [PATCH 3/3] package/meson: add gobject-introspection tools to cross-compilation.conf.in

[Yann E. MORIN <yann.morin.1998@free.fr>]

Adam, All,

On 2020-02-21 14:43 -0800, aduskett at gmail.com spake thusly:
> From: Adam Duskett <Aduskett@gmail.com>
> 
> These paths are hardcoded by default to the host directory; however, because
> Buildroot is using wrappers for gobject-introspection, the sysroot paths to
> these tools must be explicitly called instead.
> 
> Signed-off-by: Adam Duskett <Aduskett@gmail.com>
> ---
>  package/meson/cross-compilation.conf.in | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/package/meson/cross-compilation.conf.in b/package/meson/cross-compilation.conf.in
> index 369e225b3e..565ea67240 100644
> --- a/package/meson/cross-compilation.conf.in
> +++ b/package/meson/cross-compilation.conf.in
> @@ -9,6 +9,8 @@ cpp = '@TARGET_CROSS at g++'
>  ar = '@TARGET_CROSS at ar'
>  strip = '@TARGET_CROSS at strip'
>  pkgconfig = '@HOST_DIR@/bin/pkgconf'
> +g-ir-scanner = '@STAGING_DIR@/usr/bin/g-ir-scanner'
> +g-ir-compiler = '@STAGING_DIR@/usr/bin/g-ir-compiler'

On first sight, it would seem pretty obvious. However, not so much...

We already had a similar situation with llvm and llvm-config: packages,
such as mesa3d, may need to know where it is stored, but we did not want
the meson infra to hard-code all these per-package utilities.

Instead, packages that need them can specify them in their
FOO_MESON_EXTRA_BINARIES, and they get added to that package's
cross-compilation.conf.

So I'd like that the git toolset be handled the same.

Of course, to avoid repeating tedious path, you could have GOI set the
variables:

    GIR_COMPILER = $(STAGING_DIR)/usr/bin/g-ir-compiler
    GIR_SCANNER = $(STAGING_DIR)/usr/bin/g-ir-scanner

And then packages that need themwould do:

    FOO_MESON_EXTRA_BINARIES = \
        g-ir-compiler=$(GIR_COMPILER) \
        g-ir-scanner=$(GIR_SCANNER)

Regards,
Yann E. MORIN.

>  [properties]
>  needs_exe_wrapper = true
> -- 
> 2.24.1
> 
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