[PATCH v2] sb: Add support to search for a suitable version of python.

[Malte Münch]

Yes i think this resolves the issue:

[mamu at verstappen rtems-tools]$ ./waf
Traceback (most recent call last):
  File
"/home/mamu/vcs/git/rtems-tools/.waf3-1.9.9-75529a659e4f06cb4254801e52405e0a/waflib/Node.py",
line 295, in ant_iter
    raise StopIteration
StopIteration

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File
"/home/mamu/vcs/git/rtems-tools/.waf3-1.9.9-75529a659e4f06cb4254801e52405e0a/waflib/Scripting.py",
line 120, in waf_entry_point
    run_commands()
  File
"/home/mamu/vcs/git/rtems-tools/.waf3-1.9.9-75529a659e4f06cb4254801e52405e0a/waflib/Scripting.py",
line 177, in run_commands
    parse_options()
  File
"/home/mamu/vcs/git/rtems-tools/.waf3-1.9.9-75529a659e4f06cb4254801e52405e0a/waflib/Scripting.py",
line 150, in parse_options
    Context.create_context('options').execute()
  File
"/home/mamu/vcs/git/rtems-tools/.waf3-1.9.9-75529a659e4f06cb4254801e52405e0a/waflib/Options.py",
line 149, in execute
    super(OptionsContext,self).execute()
  File
"/home/mamu/vcs/git/rtems-tools/.waf3-1.9.9-75529a659e4f06cb4254801e52405e0a/waflib/Context.py",
line 88, in execute
    self.recurse([os.path.dirname(g_module.root_path)])
  File
"/home/mamu/vcs/git/rtems-tools/.waf3-1.9.9-75529a659e4f06cb4254801e52405e0a/waflib/Context.py",
line 129, in recurse
    user_function(self)
  File "/home/mamu/vcs/git/rtems-tools/wscript", line 65, in options
    recurse(ctx)
  File "/home/mamu/vcs/git/rtems-tools/wscript", line 54, in recurse
    ctx.recurse(sd)
  File
"/home/mamu/vcs/git/rtems-tools/.waf3-1.9.9-75529a659e4f06cb4254801e52405e0a/waflib/Context.py",
line 129, in recurse
    user_function(self)
  File "/home/mamu/vcs/git/rtems-tools/rtemstoolkit/wscript", line 36,
in options
    opt.load('compiler_c')
  File
"/home/mamu/vcs/git/rtems-tools/.waf3-1.9.9-75529a659e4f06cb4254801e52405e0a/waflib/Context.py",
line 85, in load
    fun(self)
  File
"/home/mamu/vcs/git/rtems-tools/.waf3-1.9.9-75529a659e4f06cb4254801e52405e0a/waflib/Tools/compiler_c.py",
line 40, in options
    opt.load_special_tools('c_*.py',ban=['c_dumbpreproc.py'])
  File
"/home/mamu/vcs/git/rtems-tools/.waf3-1.9.9-75529a659e4f06cb4254801e52405e0a/waflib/Context.py",
line 319, in load_special_tools

lst=self.root.find_node(waf_dir).find_node('waflib/extras').ant_glob(var)
  File
"/home/mamu/vcs/git/rtems-tools/.waf3-1.9.9-75529a659e4f06cb4254801e52405e0a/waflib/Node.py",
line 344, in ant_glob
    ret=[x for x in
self.ant_iter(accept=accept,pats=[to_pat(incl),to_pat(excl)],maxdepth=kw.get('maxdepth',25),dir=dir,src=src,remove=kw.get('remove',True))]
  File
"/home/mamu/vcs/git/rtems-tools/.waf3-1.9.9-75529a659e4f06cb4254801e52405e0a/waflib/Node.py",
line 344, in <listcomp>
    ret=[x for x in
self.ant_iter(accept=accept,pats=[to_pat(incl),to_pat(excl)],maxdepth=kw.get('maxdepth',25),dir=dir,src=src,remove=kw.get('remove',True))]
RuntimeError: generator raised StopIteration
[mamu at verstappen rtems-tools]$ ./waf-2.0.12
The project was not configured: run "waf configure" first!
[mamu at verstappen rtems-tools]$

python is symlinked to python3 and ./waf crashes and the fresh
waf-2.0.12 executes fine.

Best
Malte

On 25.10.18 00:47, Chris Johns wrote:
> On 25/10/2018 09:09, Malte Münch wrote:
>> It seems to be an issue with the waf building system. If i change the
>> symlink /usr/bin/python to python2 everything works fine and the build
>> is able to run through.
> 
> I suspected this may be an issue. joel and I are planning to update all the waf
> instances we have in our projects.
> 
> Can you please clone the rtems-tools.git repo and run the build command from the
> RSB log and then fetch the latest waf from waf.io and try that to see if it
> resolves the issue?
> 
> Thanks
> Chris
>