On Tue, May 27, 2025 at 11:28:23AM +0000, Markus Heidelberg wrote: > On Sun, May 25, 2025 at 03:50:17PM +0200, Michael Olbrich wrote: > > On Tue, May 20, 2025 at 02:21:51PM +0200, Markus Heidelberg via ptxdist > > wrote: > > > python3-config has to exist, available in python3-dev Debian package. > > > > > > Fixes the following error in libgpiod prepare stage: > > > > > > checking for python3-config... false > > > configure: error: python3-config not found - needed for python bindings > > > > > > Signed-off-by: Markus Heidelberg <[email protected]> > > > --- > > > rules/libgpiod.in | 1 + > > > 1 file changed, 1 insertion(+) > > > > > > diff --git a/rules/libgpiod.in b/rules/libgpiod.in > > > index 94bff5164..012223ff1 100644 > > > --- a/rules/libgpiod.in > > > +++ b/rules/libgpiod.in > > > @@ -6,6 +6,7 @@ menuconfig LIBGPIOD > > > select HOST_SYSTEM_PYTHON3 > > > select GCCLIBS_CXX if LIBGPIOD_CXX > > > select PYTHON3 if LIBGPIOD_PYTHON3 > > > + select HOST_SYSTEM_PYTHON3_DEV if LIBGPIOD_PYTHON3 > > > > No, this is wrong. The python3-config should come from the Python we use to > > build stuff for the target, so host-python/python. > > > > We do some hacky stuff to combine the host-python binary with target python > > stuff to get a cross python to build stuff. Maybe that needs to be extended > > so that libgpiod will find python3-config? > > I guess python3-config from sysroot-cross should be used, but there is > only python3.13-config. So I wonder whether > > A) there is a symlink (or copy) missing: > sysroot-cross/usr/bin/python3-config -> python3.13-config > > B) libgpiod's configure.ac has to be patched: > -python3-config > +python3.13-config
Try adding ac_cv_prog_has_python_config=python3.13-config to LIBGPIOD_CONF_ENV. Does that help? Michael -- 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 |
