[OE-core] [PATCH] lttng-ust: Patch python shebang appropriately for native builds

[Khem Raj]

On Wed, Dec 14, 2016 at 1:38 PM, Phil Blundell <pb at pbcl.net> wrote:
> If we are building a native package then ${bindir}/python3 is not guaranteed
> to be available, and if it is available then it is probably a directory not a
> file.  In either case, attempting to use it as an interpreter will not end
> well.  Let's use ${bindir}/nativepython instead.
>
> Signed-off-by: Phil Blundell <philb at gnu.org>
> ---
>  meta/recipes-kernel/lttng/lttng-ust_git.bb | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/meta/recipes-kernel/lttng/lttng-ust_git.bb b/meta/recipes-kernel/lttng/lttng-ust_git.bb
> index 5869093..df22352 100644
> --- a/meta/recipes-kernel/lttng/lttng-ust_git.bb
> +++ b/meta/recipes-kernel/lttng/lttng-ust_git.bb
> @@ -29,10 +29,12 @@ SRC_URI = "git://git.lttng.org/lttng-ust.git;branch=stable-2.7 \
>
>  PACKAGECONFIG[manpages] = "--enable-man-pages, --disable-man-pages, asciidoc-native xmlto-native libxslt-native"
>
> +usepython="${bindir}/python3"
> +usepython_class-native="${bindir}/nativepython"
>  do_install_append() {
>          # Patch python tools to use Python 3; they should be source compatible, but
>          # still refer to Python 2 in the shebang
> -        sed -i -e '1s,#!.*python.*,#!${bindir}/python3,' ${D}${bindir}/lttng-gen-tp
> +        sed -i -e '1s,#!.*python.*,#!${usepython},' ${D}${bindir}/lttng-gen-tp

This also means we need to add a dependency on python-native may be it
should inherit the python native class.

>  }
>
>  S = "${WORKDIR}/git"
> --
> 2.10.1
> --
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