python3targetconfig.bbclass: Extend PYTHONPATH instead of overwriting

From: Johannes Schrimpf <dev@loewen-email.de>

[YOCTO #15108] -- https://bugzilla.yoctoproject.org/show_bug.cgi?id=15108

Since the latest change, the PYTHONPATH is overwritten instead of extended.
This leads to changed behavior and build errors of recipes where the PYTHONPATH
is set before setup_target_config is run.

Signed-off-by: Johannes Schrimpf <dev@loewen-email.de>
---
 meta/classes-recipe/python3targetconfig.bbclass | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

On Tue, Apr 25, 2023 at 2:15 AM <dev@loewen-email.de> wrote:

> From: Johannes Schrimpf <dev@loewen-email.de>
>
> [YOCTO #15108] -- https://bugzilla.yoctoproject.org/show_bug.cgi?id=15108
>
> Since the latest change,


We should mention the commit where the change was made:
https://git.openembedded.org/openembedded-core/commit/meta/classes-recipe/python3targetconfig.bbclass?id=c9617c03bceee54dc540318cada392799b137bd5

the PYTHONPATH is overwritten instead of extended.
> This leads to changed behavior and build errors of recipes where the
> PYTHONPATH
> is set before setup_target_config is run.
>
> Signed-off-by: Johannes Schrimpf <dev@loewen-email.de>
> ---
>  meta/classes-recipe/python3targetconfig.bbclass | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/meta/classes-recipe/python3targetconfig.bbclass
> b/meta/classes-recipe/python3targetconfig.bbclass
> index 22305fe176..08bc619398 100644
> --- a/meta/classes-recipe/python3targetconfig.bbclass
> +++ b/meta/classes-recipe/python3targetconfig.bbclass
> @@ -12,7 +12,7 @@ DEPENDS:append = " ${EXTRA_PYTHON_DEPENDS}"
>
>  setup_target_config() {
>          export _PYTHON_SYSCONFIGDATA_NAME="_sysconfigdata"
> -        export PYTHONPATH=${STAGING_LIBDIR}/python-sysconfigdata
> +        export
> PYTHONPATH=${STAGING_LIBDIR}/python-sysconfigdata:$PYTHONPATH
>          export PATH=${STAGING_EXECPREFIXDIR}/python-target-config/:$PATH
>  }
>
> --
> 2.37.1 (Apple Git-137.1)
>
>
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Hi Tim, Johannes,

On Tue, 25 Apr 2023 07:25:58 -0700
"Tim Orling" <ticotimo@gmail.com> wrote:

> On Tue, Apr 25, 2023 at 2:15 AM <dev@loewen-email.de> wrote:
> 
> > From: Johannes Schrimpf <dev@loewen-email.de>
> >
> > [YOCTO #15108] -- https://bugzilla.yoctoproject.org/show_bug.cgi?id=15108
> >
> > Since the latest change,  
> 
> 
> We should mention the commit where the change was made:
> https://git.openembedded.org/openembedded-core/commit/meta/classes-recipe/python3targetconfig.bbclass?id=c9617c03bceee54dc540318cada392799b137bd5

Good idea. I'm taking this patch for testing and adding a 'Fixes' tag.
No need to resend.

Best regards,
Luca