Re: libtalloc failure due to waf

[Joshua Watt <jpewhacker@gmail.com>]

On Thu, 2018-02-15 at 18:24 -0500, Denys Dmytriyenko wrote:
> On Thu, Feb 15, 2018 at 11:20:49PM +0000, Tim Orling wrote:
> > Then why did ‘sudo dnf install waf’ get me past the error above?
> > And why
> > does Fedora have a package for it?
> > 
> > https://src.fedoraproject.org/rpms/waf
> > 
> > Regardless, something broke.
> 
> I thought so too. As waf.bbclass from oe-core looks for waf binary in
> the root 
> of the source package, I looked inside libtalloc 2.1.9 and 2.1.10 and
> neither 
> of them have any "waf" files at the root. How was it working before?
> What 
> broke?

We added support for detecting the waf version to waf.bbclass so that
we could correctly supply --bindir and --libdir.

libtalloc (and some others) were indirectly getting waf.bbclass via
waf-samba.bbclass. waf-samba.bbclass redirects the build to look for
waf elsewhere than the project root, and really didn't need to be
inheriting from waf.bbclass at all, hence my patch.

> 
> 
> > On Thu, Feb 15, 2018 at 3:16 PM Joshua Watt <jpewhacker@gmail.com>
> > wrote:
> > 
> > > On Thu, 2018-02-15 at 23:10 +0000, Tim Orling wrote:
> > > > Seeing the same and trying to figure it out. Also, seems there
> > > > is no
> > > > recipe
> > > > for waf-native, so it becomes a new required host tool.
> > > 
> > > There is no "waf" tool, so a "waf-native" tool doesn't make
> > > sense...
> > > it's not how waf works. Each project has their own copy of the
> > > waf
> > > program, it's not something the host has to provide.
> > > 
> > > > On Thu, Feb 15, 2018 at 2:57 PM Denys Dmytriyenko <denis@denix.
> > > > org>
> > > > wrote:
> > > > 
> > > > > Hi,
> > > > > 
> > > > > I'm getting below stack dump building libtalloc 2.1.10 in
> > > > > master.
> > > > > Works
> > > > > fine in
> > > > > rocko with libtalloc 2.1.9. I need it for cifs-utils. I'm not
> > > > > familiar with
> > > > > waf, any help? Thanks.
> > > > > 
> > > > > 
> > > > > ERROR: libtalloc-2.1.10-r0 do_configure: Error executing a
> > > > > python
> > > > > function
> > > > > in exec_python_func() autogenerated:
> > > > > 
> > > > > The stack trace of python calls that resulted in this
> > > > > exception/failure
> > > > > was:
> > > > > File: 'exec_python_func() autogenerated', lineno: 2,
> > > > > function:
> > > > > <module>
> > > > >      0001:
> > > > >  *** 0002:waf_preconfigure(d)
> > > > >      0003:
> > > > > File: '/OE/master/sources/oe-core/meta/classes/waf.bbclass',
> > > > > lineno: 34,
> > > > > function: waf_preconfigure
> > > > >      0030:    from distutils.version import StrictVersion
> > > > >      0031:    subsrcdir = d.getVar('S')
> > > > >      0032:    wafbin = os.path.join(subsrcdir, 'waf')
> > > > >      0033:    try:
> > > > >  *** 0034:        result = subprocess.check_output([wafbin, '
> > > > > --version'],
> > > > > cwd=subsrcdir, stderr=subprocess.STDOUT)
> > > > >      0035:        version = result.decode('utf-8').split()[1]
> > > > >      0036:        if StrictVersion(version) >=
> > > > > StrictVersion("1.8.7"):
> > > > >      0037:            d.setVar("WAF_EXTRA_CONF", "
> > > > > --bindir=${bindir}
> > > > > --libdir=${libdir}")
> > > > >      0038:    except subprocess.CalledProcessError as e:
> > > > > File: '/usr/lib/python3.5/subprocess.py', lineno: 626,
> > > > > function:
> > > > > check_output
> > > > >      0622:        # empty string. That is maintained here for
> > > > > backwards
> > > > > compatibility.
> > > > >      0623:        kwargs['input'] = '' if
> > > > > kwargs.get('universal_newlines',
> > > > > False) else b''
> > > > >      0624:
> > > > >      0625:    return run(*popenargs, stdout=PIPE,
> > > > > timeout=timeout,
> > > > > check=True,
> > > > >  *** 0626:               **kwargs).stdout
> > > > >      0627:
> > > > >      0628:
> > > > >      0629:class CompletedProcess(object):
> > > > >      0630:    """A process that has finished running.
> > > > > File: '/usr/lib/python3.5/subprocess.py', lineno: 693,
> > > > > function:
> > > > > run
> > > > >      0689:        if 'stdin' in kwargs:
> > > > >      0690:            raise ValueError('stdin and input
> > > > > arguments
> > > > > may not
> > > > > both be used.')
> > > > >      0691:        kwargs['stdin'] = PIPE
> > > > >      0692:
> > > > >  *** 0693:    with Popen(*popenargs, **kwargs) as process:
> > > > >      0694:        try:
> > > > >      0695:            stdout, stderr =
> > > > > process.communicate(input,
> > > > > timeout=timeout)
> > > > >      0696:        except TimeoutExpired:
> > > > >      0697:            process.kill()
> > > > > File: '/usr/lib/python3.5/subprocess.py', lineno: 947,
> > > > > function:
> > > > > __init__
> > > > >      0943:                                startupinfo,
> > > > > creationflags,
> > > > > shell,
> > > > >      0944:                                p2cread, p2cwrite,
> > > > >      0945:                                c2pread, c2pwrite,
> > > > >      0946:                                errread, errwrite,
> > > > >  *** 0947:                                restore_signals,
> > > > > start_new_session)
> > > > >      0948:        except:
> > > > >      0949:            # Cleanup if the child failed starting.
> > > > >      0950:            for f in filter(None, (self.stdin,
> > > > > self.stdout,
> > > > > self.stderr)):
> > > > >      0951:                try:
> > > > > File: '/usr/lib/python3.5/subprocess.py', lineno: 1551,
> > > > > function:
> > > > > _execute_child
> > > > >      1547:                                # The error must be
> > > > > from
> > > > > chdir(cwd).
> > > > >      1548:                                err_msg += ': ' +
> > > > > repr(cwd)
> > > > >      1549:                            else:
> > > > >      1550:                                err_msg += ': ' +
> > > > > repr(orig_executable)
> > > > >  *** 1551:                    raise
> > > > > child_exception_type(errno_num,
> > > > > err_msg)
> > > > >      1552:                raise child_exception_type(err_msg)
> > > > >      1553:
> > > > >      1554:
> > > > >      1555:        def _handle_exitstatus(self, sts,
> > > > > _WIFSIGNALED=os.WIFSIGNALED,
> > > > > Exception: FileNotFoundError: [Errno 2] No such file or
> > > > > directory:
> > > > > '/OE/master/build/tmp-glibc/work/armv7ahf-neon-oe-linux-
> > > > > gnueabi/libtalloc/2.1.10-r0/talloc-2.1.10/waf'
> > > > > 
> > > > > ERROR: libtalloc-2.1.10-r0 do_configure: Function failed:
> > > > > waf_preconfigure
> > > > > ERROR: Logfile of failure stored in:
> > > > > /OE/master/build/tmp-glibc/work/armv7ahf-neon-oe-linux-
> > > > > gnueabi/libtalloc/2.1.10-r0/temp/log.do_configure.52699
> > > > > ERROR: Task
> > > > > (/OE/master/sources/meta-openembedded/meta-
> > > > > networking/recipes-
> > > > > support/libtalloc/libtalloc_2.1.10.bb:do_configure)
> > > > > failed with exit code '1'
> > > > > --
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> > > > >