CYGPORT: using WAF build system.

[Carlo B.]

Hello,
in addition to my previous message, I would like to say that I tried
to build the existing old sources of lv2-1.12.0-1.x86_64 package, but
an error is generated.
I attached what happens and I hope that you will find this report useful.
Sincerely.

=============

$ cygport lv2.cygport all
>>> Preparing lv2-1.12.0-1.x86_64
>>> Unpacking source lv2-1.12.0.tar.bz2
*** Info: applying patch 1.12.0-cygwin-shlib.patch (-p2):
patching file plugins/eg-amp.lv2/wscript
patching file plugins/eg-fifths.lv2/wscript
patching file plugins/eg-metro.lv2/wscript
patching file plugins/eg-midigate.lv2/wscript
patching file plugins/eg-sampler.lv2/wscript
patching file plugins/eg-scope.lv2/wscript
>>> Preparing working source directory
>>> Compiling lv2-1.12.0-1.x86_64
Traceback (most recent call last):
  File "/home/Carlo/packages/lv2.src/lv2.src/a/lv2-1.12.0-1.src/lv2-1.12.0-1.x86_64/build/.waf3-1.8.5-3556be08f33a5066528395b11fed89fa/waflib/Node.py",
line 293, in ant_iter
    raise StopIteration
StopIteration

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

Traceback (most recent call last):
  File "/home/Carlo/packages/lv2.src/lv2.src/a/lv2-1.12.0-1.src/lv2-1.12.0-1.x86_64/build/.waf3-1.8.5-3556be08f33a5066528395b11fed89fa/waflib/Scripting.py",
line 103, in waf_entry_point
    run_commands()
  File "/home/Carlo/packages/lv2.src/lv2.src/a/lv2-1.12.0-1.src/lv2-1.12.0-1.x86_64/build/.waf3-1.8.5-3556be08f33a5066528395b11fed89fa/waflib/Scripting.py",
line 160, in run_commands
    parse_options()
  File "/home/Carlo/packages/lv2.src/lv2.src/a/lv2-1.12.0-1.src/lv2-1.12.0-1.x86_64/build/.waf3-1.8.5-3556be08f33a5066528395b11fed89fa/waflib/Scripting.py",
line 133, in parse_options
    Context.create_context('options').execute()
  File "/home/Carlo/packages/lv2.src/lv2.src/a/lv2-1.12.0-1.src/lv2-1.12.0-1.x86_64/build/.waf3-1.8.5-3556be08f33a5066528395b11fed89fa/waflib/Options.py",
line 141, in execute
    super(OptionsContext,self).execute()
  File "/home/Carlo/packages/lv2.src/lv2.src/a/lv2-1.12.0-1.src/lv2-1.12.0-1.x86_64/build/.waf3-1.8.5-3556be08f33a5066528395b11fed89fa/waflib/Context.py",
line 92, in execute
    self.recurse([os.path.dirname(g_module.root_path)])
  File "/home/Carlo/packages/lv2.src/lv2.src/a/lv2-1.12.0-1.src/lv2-1.12.0-1.x86_64/build/.waf3-1.8.5-3556be08f33a5066528395b11fed89fa/waflib/Context.py",
line 133, in recurse
    user_function(self)
  File "/home/Carlo/packages/lv2.src/lv2.src/a/lv2-1.12.0-1.src/lv2-1.12.0-1.x86_64/build/wscript",
line 25, in options
    opt.load('compiler_c')
  File "/home/Carlo/packages/lv2.src/lv2.src/a/lv2-1.12.0-1.src/lv2-1.12.0-1.x86_64/build/.waf3-1.8.5-3556be08f33a5066528395b11fed89fa/waflib/Context.py",
line 89, in load
    fun(self)
  File "/home/Carlo/packages/lv2.src/lv2.src/a/lv2-1.12.0-1.src/lv2-1.12.0-1.x86_64/build/.waf3-1.8.5-3556be08f33a5066528395b11fed89fa/waflib/Tools/compiler_c.py",
line 36, in options
    opt.load_special_tools('c_*.py',ban=['c_dumbpreproc.py'])
  File "/home/Carlo/packages/lv2.src/lv2.src/a/lv2-1.12.0-1.src/lv2-1.12.0-1.x86_64/build/.waf3-1.8.5-3556be08f33a5066528395b11fed89fa/waflib/Context.py",
line 296, in load_special_tools
    lst=self.root.find_node(waf_dir).find_node('waflib/extras').ant_glob(var)
  File "/home/Carlo/packages/lv2.src/lv2.src/a/lv2-1.12.0-1.src/lv2-1.12.0-1.x86_64/build/.waf3-1.8.5-3556be08f33a5066528395b11fed89fa/waflib/Node.py",
line 342, 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/Carlo/packages/lv2.src/lv2.src/a/lv2-1.12.0-1.src/lv2-1.12.0-1.x86_64/build/.waf3-1.8.5-3556be08f33a5066528395b11fed89fa/waflib/Node.py",
line 342, 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
*** ERROR: waf configure failed

Il giorno ven 15 ott 2021 alle ore 17:22 Brian Inglis
<Brian.Inglis@systematicsw.ab.ca> ha scritto:
>
> On 2021-10-14 04:02, Carlo B. via Cygwin wrote:
> > I would like to make a package with LV2 plugins for CYGWIN.
> > The problem is that those plugins are using the WAF build system and
> > it is not clear to me how to proceed. Do you know if some of the
> > existing packages for CYGWIN are using WAF, so that they could be uses
> > as example for starting?
>
> In connection with other queries, I just came across a few lv2 packages
> already available in Cygwin:
>
> lv2
> lv2core
> lv2-calf
> lv2-devel
> lv2-examples
> lv2-swh
>
> slv2
> libslv2_9
> libslv2-devel
>
> with cygport build control script definitions and patches available
> which use WAF:
>
> https://cygwin.com/git-cygwin-packages?p=git/cygwin-packages/lv2.git
> https://cygwin.com/git-cygwin-packages?p=git/cygwin-packages/lv2-swh.git
> https://cygwin.com/git-cygwin-packages?p=git/cygwin-packages/slv2.git
>
> so you could install cygport and any *lv2* package dependencies, clone
> these repos or download and untar the current source packages which
> contain these files plus upstream tars, and build the current packages
> as a proof of concept and way of learning cygport, before trying to
> build more current versions.
>
> The simple approach to running cygport is to change to the directory
> containing the .cygport definitions and .patch file(s) or move them to a
> working directory (normally named for the source package), then run e.g.
>
>         $ cygport lv2.cygport get prep
>
> which downloads the upstream (not Cygwin) package sources for the
> specified version to a central cache directory, creates a package build
> directory, copies or untars sources if required, and (tries to) apply
> any patches to the original sources, to give you working sources, which
> you can then use to compile and make install-able Cygwin packages for
> the current arch.
> You can try one of the following examples, depending whether you want to
> watch the builds run or review the results later:
>
>         $ cygport lv2.cygport all |& tee lv2-cygport-`arch`-all.log
>
>         $ cygport lv2.cygport all | tee lv2-cygport-`arch`-all.log 2>&1
>
>         $ cygport lv2.cygport all &> tee lv2-cygport-`arch`-all.log &
>
>        $ cygport lv2.cygport all > tee lv2-cygport-`arch`-all.log 2>&1 &
>
> Browse the created build subdirectories to see what is produced and
> review all detail logs generated during the process.
>
> After a successful build and package creation, it is always a good idea
> to try to run any test suites with:
>
>    $ cygport lv2.cygport check > tee lv2-cygport-`arch`-check.log 2>&1 &
>
> I use the cygport command check instead of test as test is used
> ambiguously by cygport, as it may also refer to test vs stable or
> production releases produced by cygport using commands e.g. all-test.
>
> --
> Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada
>
> This email may be disturbing to some readers as it contains
> too much technical detail. Reader discretion is advised.
> [Data in binary units and prefixes, physical quantities in SI.]