Re: [PATCH RESEND v9 6/9] meson.build: add HAVE_GLIB_WITH_ALIGNED_ALLOC flag

["Alex Bennée" <alex.bennee@linaro.org>]

Manos Pitsidianakis <manos.pitsidianakis@linaro.org> writes:

> Rust crates, introduced from the next commit onwards, use the glib
> allocator API and need to know whether g_aligned_alloc etc are
> available.
>
> This commit adds a define in config_host_data that depends on glib
> version >= 2.72.
>
> Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
> ---
>  meson.build | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/meson.build b/meson.build
> index 05446acbc684a7521ecc9b3f80b98e2cec1a60cf..7f05466d128776ad8dbf403179734e6831b023c0 100644
> --- a/meson.build
> +++ b/meson.build
> @@ -979,6 +979,9 @@ glib = declare_dependency(dependencies: [glib_pc, gmodule],
>  # TODO: remove this check and the corresponding workaround (qtree) when
>  # the minimum supported glib is >= 2.75.3
>  glib_has_gslice = glib.version().version_compare('<2.75.3')
> +# Check whether glib has the aligned_alloc family of functions.
> +# <https://docs.gtk.org/glib/func.aligned_alloc.html>
> +glib_has_aligned_alloc = glib.version().version_compare('>=2.72.0')

Minor suggestion: you could update the comment for the main glib probe:

  # When bumping glib minimum version, please check also whether to increase
  # the _WIN32_WINNT setting in osdep.h according to the value from
  # glib. You should also check if any of the glib.version() checks
  # bellow can also be removed.

Anyway:

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>


>  
>  # override glib dep to include the above refinements
>  meson.override_dependency('glib-2.0', glib)
> @@ -2508,6 +2511,7 @@ config_host_data.set('CONFIG_TIMERFD', cc.has_function('timerfd_create'))
>  config_host_data.set('HAVE_COPY_FILE_RANGE', cc.has_function('copy_file_range'))
>  config_host_data.set('HAVE_GETIFADDRS', cc.has_function('getifaddrs'))
>  config_host_data.set('HAVE_GLIB_WITH_SLICE_ALLOCATOR', glib_has_gslice)
> +config_host_data.set('HAVE_GLIB_WITH_ALIGNED_ALLOC', glib_has_aligned_alloc)
>  config_host_data.set('HAVE_OPENPTY', cc.has_function('openpty', dependencies: util))
>  config_host_data.set('HAVE_STRCHRNUL', cc.has_function('strchrnul'))
>  config_host_data.set('HAVE_SYSTEM_FUNCTION', cc.has_function('system', prefix: '#include <stdlib.h>'))

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro