RE: [OE-core] [PATCHv2 1/2] meson.bblcass: Remove empty egg-info directories before running meson

[Peter Kjellerstedt <peter.kjellerstedt@axis.com>]

> -----Original Message-----
> From: openembedded-core@lists.openembedded.org <openembedded-core@lists.openembedded.org> On Behalf Of Peter Kjellerstedt
> Sent: den 25 oktober 2021 16:07
> To: openembedded-core@lists.openembedded.org
> Subject: [OE-core] [PATCHv2 1/2] meson.bblcass: Remove empty egg-info directories before running meson
> 
> sstate.bbclass no longer removes empty directories to avoid a race (see
> commit 4f94d929 "sstate/staging: Handle directory creation race issue").
> Unfortunately Python apparently treats an empty egg-info directory as if
> the version it previously contained still exists and fails if a newer
> version is required, which Meson does. To avoid this, make sure there
> are no empty egg-info directories from previous versions left behind.
> 
> Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
> ---
> 
> PATCHv2: Ignore all errors from rmdir since apparently egg-info may be
>          files rather than directories.
> 
>  meta/classes/meson.bbclass | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/meta/classes/meson.bbclass b/meta/classes/meson.bbclass
> index e124d18144..da58cb4bec 100644
> --- a/meta/classes/meson.bbclass
> +++ b/meta/classes/meson.bbclass
> @@ -103,6 +103,16 @@ meson_do_configure() {
>      # https://github.com/mesonbuild/meson/commit/ef9aeb188ea2bc7353e59916c18901cde90fa2b3
>      unset LD
> 
> +    # sstate.bbclass no longer removes empty directories to avoid a race (see
> +    # commit 4f94d929 "sstate/staging: Handle directory creation race issue").
> +    # Unfortunately Python apparently treats an empty egg-info directory as if
> +    # the version it previously contained still exists and fails if a newer
> +    # version is required, which Meson does. To avoid this, make sure there are
> +    # no empty egg-info directories from previous versions left behind. Ignore
> +    # all errors from rmdir since the egg-info may be a file rather than a
> +    # directory.
> +    rmdir ${STAGING_LIBDIR_NATIVE}/${PYTHON_DIR}/site-packages/*.egg-info 2>/dev/null || :
> +
>      # Work around "Meson fails if /tmp is mounted with noexec #2972"
>      mkdir -p "${B}/meson-private/tmp"
>      export TMPDIR="${B}/meson-private/tmp"

Can this patch and the corresponding qemu.inc patch please be backported 
to Honister now that they have been accepted for master?

//Peter