> 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?
Yes, that helps, libgpiod builds successfully then. However, finally I had a look into the libgpiod sources and noticed that python3-config is not used at all. Autotools aren't used anymore to build the Python bindings since v2: https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git/commit/bindings/python/Makefile.am?id=b7ba732e6a93313d4609c4d3ffb426996bf68d02 Later some Python leftover had been removed from configure.ac, but not the python3-config check: https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git/commit/?id=8aab09cb23b19799c058f3375afde5f07de03eef So it would probably be better to just remove the python3-config check. I'll submit a patch upstream and when accepted submit it to PTXdist. Markus
