[yocto] Creating a recipe for python3-pillow

[Oliver Westermann]

Am Do., 5. Juli 2018 um 12:59 Uhr schrieb Burton, Ross <
ross.burton at intel.com>:

> On 5 July 2018 at 08:26, Oliver Westermann <owestermann at gmail.com> wrote:
> > I'm fiddeling around with yocto. I want to move some python stuff onto an
> > embedded board and use the nxp mx8 yocto. Everything worked as expected
> > until now, I was able to create yocto recipes for python modules like
> pyv4l2
> > (is there any interest for recipes like these to be commited to
> > meta-python?).
> >
> > Now I wanted to install pillow for some image manipulation, but whereas
> > other python module recipes worked fine, this one fails and I don't
> > understand why.
> >
> > Yocto reports missing setuptools:
> >
> > Log data follows:
> > | DEBUG: Executing shell function do_configure
> > | NOTE: make clean
> > | python setup.py clean
> > | Traceback (most recent call last):
> > |   File "setup.py", line 22, in <module>
> > |     from setuptools import Extension, setup
> > | ImportError: No module named setuptools
> >
> > I've googled around and everything suggests that inherit setuptools3 is
> > missing, but it's present in my recipe. This is my
> python3-pillow_5.2.0.bb:
> >
> > SUMMARY = "Pillow (The friendly PIL fork)"
> > HOMEPAGE = "http://python-pillow.org/"
> > LICENSE = "EPLv1"
> > LIC_FILES_CHKSUM = "file://LICENSE;md5=c6379001ecb47e2a0420c40177fc1125"
> >
> > SRC_URI[md5sum] = "52d93a34f4180abcff04876f23eaa9b9"
> >
> > PYPI_PACKAGE = "Pillow"
> >
> > inherit pypi setuptools3
> >
> > BBCLASSEXTEND = "native nativesdk"
> >
> > Any idea whats missing or what I am doing wrong (other than that the
> license
> > line is incorrect)?
>
> Oh, that's a fun one.
>
> So setuptools/distutils/etc doesn't have the concept of a "configure"
> phase but it also doesn't remove the default implementation.  The
> default implementation will try to do a 'make clean' first to remove
> existing build artifacts.  Normally this does nothing with Python code
> as there's never a Makefile, but pillow has a Makefile.  This makefile
> does 'python setup.py clean', which is running the *host* Python2 and
> you don't have distutils installed.  So, it fails.
>
> Three solutions in order of hackiness (more to less)
> 1) Set CLEANBROKEN="1" in the recipe to stop the clean happening
> 2) Nullify do_configure in the recipe with do_configure[noexec] = "1"
> 3) Override do_configure in distutils3.bbclass to call setup.py
> directly to do a clean in do_configure
>
> I'd say do (1) in your recipe and I'll send a patch for (3) to oe-core.
>
> And yes, this recipe would be very welcome in meta-python.
>
> Ross
>

 This does not seem to work as expected. With option 1) and 2) it fails in
do_compile:

| DEBUG: Executing shell function do_compile
|
/data/workspace/yocto-build/build/mysys/tmp/work/aarch64-poky-linux/python3-pillow/5.2.0-r0/temp/run.do_compile.14093:
112: /data/workspace/yocto-build/build/mysys/tmp/work/aarch64-poky-linux/python3-pillow/5.2.0-r0/temp/run.do_compile.14093:
/data/workspace/yocto-build/build/mysys/tmp/work/aarch64-poky-linux/python3-pillow/5.2.0-r0/recipe-sysroot-native/usr/bin/python3-native/python3:
not found
| ERROR: python3 setup.py build_ext execution failed.
| WARNING: exit code 1 from a shell command.
| ERROR: Function failed: do_compile (log file is located at
/data/workspace/yocto-build/build/mysys/tmp/work/aarch64-poky-linux/python3-pillow/5.2.0-r0/temp/log.do_compile.14093)

Option 3 seems to be out of my league right now, I'm still missing some
understanding of what happens when in which context :O

But thanks already for the help :)

Olli
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