[OE-core] [PATCH 06/24] gobject-introspection.bbclass: add a class that enables gobject introspection

[Andreas Oberritter]

Hello Alexander,

On 09.03.2016 16:01, Alexander Kanavin wrote:
> Signed-off-by: Alexander Kanavin <alexander.kanavin at linux.intel.com>
> ---
>  meta/classes/gobject-introspection.bbclass | 39 ++++++++++++++++++++++++++++++
>  1 file changed, 39 insertions(+)
>  create mode 100644 meta/classes/gobject-introspection.bbclass
> 
> diff --git a/meta/classes/gobject-introspection.bbclass b/meta/classes/gobject-introspection.bbclass
> new file mode 100644
> index 0000000..ef51629
> --- /dev/null
> +++ b/meta/classes/gobject-introspection.bbclass
> @@ -0,0 +1,39 @@
> +# Inherit this class in recipes to enable building their introspection files
> +
> +# This allows disabling introspection support in recipes
> +# (and therefore avoiding the use of qemu)
> +# if gobject-introspection-data is omitted from DISTRO_FEATURES and MACHINE_FEATURES.
> +EXTRA_OECONF_prepend = "${@bb.utils.contains('COMBINED_FEATURES', 'gobject-introspection-data', '--enable-introspection', '--disable-introspection', d)} "

testing only DISTRO_FEATURES would be better. If MACHINE_FEATURES gets
tested, even though indirectly, I'd expect every recipe inheriting this
class to switch to MACHINE_ARCH implicitly.

It's not a feature that depends on any type of hardware design.

Regards,
Andreas

> +
> +UNKNOWN_CONFIGURE_WHITELIST_append = " --enable-introspection --disable-introspection"
> +
> +# Generating introspection data depends on a combination of native and target introspection tools,
> +# and qemu to run the target tools.
> +DEPENDS_append = " gobject-introspection gobject-introspection-native qemu-native"
> +
> +# This is necessary for python scripts to succeed - distutils
> +# failes if these are not set
> +export BUILD_SYS
> +export HOST_SYS
> +export STAGING_LIBDIR
> +export STAGING_INCDIR
> +
> +# This is used by introspection tools to find .gir includes
> +export XDG_DATA_DIRS = "${STAGING_DATADIR}"
> +
> +do_configure_prepend_class-target () {
> +    # introspection.m4 pre-packaged with upstream tarballs does not yet
> +    # have our fixes
> +    mkdir -p ${S}/m4
> +    cp ${STAGING_DIR_TARGET}/${datadir}/aclocal/introspection.m4 ${S}/m4
> +}
> +
> +
> +# .typelib files are needed at runtime and so they go to the main package
> +# (so they'll be together with libraries they support).
> +FILES_${PN}_append = " ${libdir}/girepository-*/*.typelib" 
> +    
> +# .gir files go to dev package, as they're needed for developing (but not for running)
> +# things that depends on introspection.
> +FILES_${PN}-dev_append = " ${datadir}/gir-*/*.gir"
> +
>