[Buildroot] [v4 09/13] pkg-generic: introduce _SAME_SOURCE_AS
Yann E. MORIN
yann.morin.1998 at free.fr
Mon Apr 2 11:57:54 UTC 2018
Maxime, All,
On 2018-04-02 10:14 +0200, Maxime Hadjinlian spake thusly:
> This per package variable can be used to specify that a package shares
> the same sources as another package.
>
> The use case here is for example linux-headers and linux, which share
> the same sources (because they are the same upstream project), so we
> don't want to download twice the kernel, nor store it multiple times
> either.
>
> Make will automatically try to help by introducing leading and trailing
> spaces when replacing a line-continuation '\', so we need to call
> $(strip) on the variable.
>
> Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian at gmail.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
Regards,
Yann E. MORIN.
> ---
> package/pkg-generic.mk | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk
> index c84b1eb4a2..a034c7ea02 100644
> --- a/package/pkg-generic.mk
> +++ b/package/pkg-generic.mk
> @@ -432,7 +432,10 @@ endif
>
> $(2)_BASENAME = $$(if $$($(2)_VERSION),$(1)-$$($(2)_VERSION),$(1))
> $(2)_BASENAME_RAW = $$(if $$($(2)_VERSION),$$($(2)_RAWNAME)-$$($(2)_VERSION),$$($(2)_RAWNAME))
> -$(2)_DL_DIR = $$(DL_DIR)/$$($(2)_RAWNAME)
> +$(2)_DL_DIR = $$(strip $$(if $$($(2)_SAME_SOURCE_AS), \
> + $$($$(call UPPERCASE,$$($(2)_SAME_SOURCE_AS))_DL_DIR), \
> + $$(DL_DIR)/$$($(2)_RAWNAME)) \
> + )
> $(2)_DIR = $$(BUILD_DIR)/$$($(2)_BASENAME)
>
> ifndef $(2)_SUBDIR
> --
> 2.16.2
>
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