[OE-core] [PATCH] python3: fix build for powerpc-linux.musl and powerpc64-linux-musl

[Khem Raj]

Hi Andrea

Sigh, while I dont like what configury is doing here, we can probably
instead surgically check for

$CC --print-multiarch on ppc/musl

and then update the tweak-MULTIARCH-for-powerpc-linux-gnuspe.patch
patch to consider musl multiarch triplets. Maybe do it for ppc64 while here
but I will not hold you accountable for that.
On Thu, Dec 13, 2018 at 6:13 AM Andrea Adami <andrea.adami at gmail.com> wrote:
>
> Add the missing triplets (not considering uclibc) for do_configure.
>
> Signed-off-by: Andrea Adami <andrea.adami at gmail.com>
> ---
>  .../python3/powerpc-musl-triplets.patch       | 43 +++++++++++++++++++
>  meta/recipes-devtools/python/python3_3.5.6.bb |  1 +
>  2 files changed, 44 insertions(+)
>  create mode 100644 meta/recipes-devtools/python/python3/powerpc-musl-triplets.patch
>
> diff --git a/meta/recipes-devtools/python/python3/powerpc-musl-triplets.patch b/meta/recipes-devtools/python/python3/powerpc-musl-triplets.patch
> new file mode 100644
> index 0000000000..477d049858
> --- /dev/null
> +++ b/meta/recipes-devtools/python/python3/powerpc-musl-triplets.patch
> @@ -0,0 +1,43 @@
> +Using musl libc the task do_configure fails on powerpc*.
> +
> +  checking build system type... x86_64-pc-linux-gnu
> +  checking host system type... powerpc-oe-linux-musl
> +  checking for python3.5... python3.5
> + ...
> +  checking for the platform triplet based on compiler characteristics...
> +  powerpc-linux-gnu
> +  configure: error: internal configure error for the platform triplet
> +
> +Fix this by adding the musl triplets.
> +Note: uclibc is purposedly not considered (unsupported in oe-core).
> +
> +Upstream-Status: Pending
> +Signed-off-by: Andrea Adami <andrea.adami at gmail.com>
> +
> +--- a/configure.ac     2018-12-13 14:44:55.414309610 +0100
> ++++ b/configure.ac     2018-12-13 13:22:37.546497547 +0100
> +@@ -831,14 +831,22 @@
> +         or1k-linux-gnu
> + # elif defined(__powerpc__) && defined(__SPE__)
> +         powerpc-linux-gnuspe
> ++# elif defined(__powerpc__) && !defined(__GLIBC__)
> ++        powerpc-linux-musl
> ++# elif defined(__powerpc__)
> ++        powerpc-linux-gnu
> ++# elif defined(__powerpc64__) && !defined(__GLIBC__)
> ++#  if defined(__LITTLE_ENDIAN__)
> ++        powerpc64le-linux-musl
> ++#  else
> ++        powerpc64-linux-musl
> ++#  endif
> + # elif defined(__powerpc64__)
> + #  if defined(__LITTLE_ENDIAN__)
> +         powerpc64le-linux-gnu
> + #  else
> +         powerpc64-linux-gnu
> + #  endif
> +-# elif defined(__powerpc__)
> +-        powerpc-linux-gnu
> + # elif defined(__s390x__)
> +         s390x-linux-gnu
> + # elif defined(__s390__)
> diff --git a/meta/recipes-devtools/python/python3_3.5.6.bb b/meta/recipes-devtools/python/python3_3.5.6.bb
> index cd7991e7f8..2e8ae711d5 100644
> --- a/meta/recipes-devtools/python/python3_3.5.6.bb
> +++ b/meta/recipes-devtools/python/python3_3.5.6.bb
> @@ -44,6 +44,7 @@ SRC_URI += "\
>              file://0005-bpo-30714-ALPN-changes-for-OpenSSL-1.1.0f-2305.patch \
>              file://run-ptest \
>             "
> +SRC_URI_append_libc-musl = " file://powerpc-musl-triplets.patch"
>
>  inherit multilib_header python3native update-alternatives qemu ptest
>
> --
> 2.17.1
>
> --
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