Re: [ptxdist] [PATCH] set install-lib path for host-system-python package installation

[Michael Olbrich <m.olbrich@pengutronix.de>]

On Fri, Jun 14, 2024 at 09:22:18AM +0200, Michael Olbrich wrote:
> On Tue, Jun 04, 2024 at 08:30:22AM +0200, Lucas Stach wrote:
> > When only the prefix is set, different packages have different ideas
> > about were the libs should be installed (lib vs lib64) on multilib
> > systems. This causes issues later on when the package content is
> > copied into the sysroot, as it may be attempted to copy a directory
> > over a symlink. Set the lib install path explicitly, so all packages
> > maintain a consistent view.
> > 
> > Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
> > ---
> >  rules/pre/Rules.make | 5 ++++-
> >  1 file changed, 4 insertions(+), 1 deletion(-)
> > 
> > diff --git a/rules/pre/Rules.make b/rules/pre/Rules.make
> > index f6b1900500b8..651660d78bea 100644
> > --- a/rules/pre/Rules.make
> > +++ b/rules/pre/Rules.make
> > @@ -254,7 +254,10 @@ CROSS_QMAKE_OPT := \
> >  
> >  CROSS_PYTHON_INSTALL := install --prefix=/usr
> >  HOST_PYTHON_INSTALL := install --prefix=/usr
> > -HOST_SYSTEM_PYTHON_INSTALL := install --prefix=/usr/lib/system-python3
> > +HOST_SYSTEM_PYTHON_INSTALL := \
> > +	install \
> > +	--prefix=/usr/lib/system-python3 \
> > +	--install-lib=/usr/lib/system-python3/lib
> 
> This breaks other stuff: With this change host-system-python3 packages are
> now installend into .../usr/lib/system-python3/lib/ instead of
> .../usr/lib/system-python3/lib/lib/python3.xx/site-packages/ and are no
> longer found at runtime.
> 
> What exactly are you trying to fix?

FYI, I solved this differently. .../usr/lib/system-python3/lib64 is now a
symlink to lib so the files should end up in the correct place.

I've learned that trying to set the correct libdir everywhere is hard to
get right and break quite often. Symlinks like this are more robust.

Michael

> >  CROSS_MESON_USR := \
> >  	--cross-file '${PTXDIST_MESON_CROSS_FILE}' \
> > -- 
> > 2.39.2
> > 
> > 
> > 
> 
> -- 
> Pengutronix e.K.                           |                             |
> Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
> 31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
> Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |
> 
> 

-- 
Pengutronix e.K.                           |                             |
Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |