This should be also fixed in Fedora already

https://src.fedoraproject.org/rpms/automake/c/3327906e94b767330433fda3da2d0997292c55ad?branch=rawhide

Ondrej

On Wed, Jul 14, 2021 at 12:11 PM Richard W.M. Jones <rjo...@redhat.com>
wrote:

> On Wed, Jul 14, 2021 at 11:49:23AM +0200, David Sommerseth wrote:
> >
> > Hi,
> >
> > So I'm running some builds for the openvpn3-linux project on Fedora
> > Rawhide ...  And we have this little line in configure.ac:
> >
> >     AM_PATH_PYTHON([3.5],, [:])
> >
> > When ./configure runs, it reports:
> >
> >     checking for python3 version... 3.1
> >
> > As a colleague said, mathematically this is correct.  But that
> > doesn't really help.  Who/what is truncating Python 3.10 to 3.1?
> > And how can that be fixed?  Is someone already looking into this?
>
> It's a bug in AM_PATH_PYTHON (defined in
> /usr/share/aclocal-1.16/python.m4).
>
>   AC_CACHE_CHECK([for $am_display_PYTHON version], [am_cv_python_version],
>     [am_cv_python_version=`$PYTHON -c "import sys;
> sys.stdout.write(sys.version[[:3]])"`])
>
> In the Python 3.10 interpreter:
>
> >>> print(sys.version[:3])
> 3.1
>
> (because the first 3 characters of the string "3.10.0b2" are "3.1")
>
> This seems to have been fixed upstream already:
>
> https://git.savannah.gnu.org/cgit/automake.git/tree/m4/python.m4#n89
>
> https://git.savannah.gnu.org/cgit/automake.git/commit/m4/python.m4?id=e21d46fddd0753e66a4acda88317670fee07f3e6
>
> Rich.
>
> --
> Richard Jones, Virtualization Group, Red Hat
> http://people.redhat.com/~rjones
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