[Buildroot] [PATCH] pkg-generic: fix <pkg>-legal-info target

[Luca Ceresoli <luca@lucaceresoli.net>]

Dear Baruch,

Baruch Siach wrote:
> When making the <pkg>-legal-info target before the main legal-info target, the
> following error shows:
>
> /bin/sh: /home/baruch/git/buildroot/output/legal-info/licenses.txt: No such file or directory
> package/freescale-imx/imx-vpu/imx-vpu.mk:39: recipe for target 'imx-vpu-legal-info' failed
> make: *** [imx-vpu-legal-info] Error 1
>
> Make <pkg>-legal-info depend on legal-info-prepare to ensure that
> $(LEGAL_INFO_DIR) exists when generating licenses.txt.
>
> Cc: Luca Ceresoli <luca@lucaceresoli.net>
> Signed-off-by: Baruch Siach <baruch@tkos.co.il>
> ---
>   package/pkg-generic.mk | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk
> index 6a7d97efdf02..24b473b13ff2 100644
> --- a/package/pkg-generic.mk
> +++ b/package/pkg-generic.mk
> @@ -715,7 +715,7 @@ endif
>   endif
>
>   # legal-info: produce legally relevant info.
> -$(1)-legal-info:
> +$(1)-legal-info: legal-info-prepare

Very weird, I can reproduce the bug, but only for packages under
package/freescale/, like imx-vpu. I tested a dozen other packages, and
they all work fine. My test command is:

   git clean -xdf && make defconfig && \
     make BR2_DL_DIR=~/src ${PKG}-legal-info

Any idea of why these packages are special?

-- 
Luca