[meta-python][Question] python3-dlib recipe?

[open.prac@gmail.com]

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Hi everyone, first time in the mailing list...

I was wondering if anybody is already working in a recipe for the package dlib pyhon3 module,
so far this is the recipe I've been working on
```bitbake
# python3-dlib_19.21.1.bb
SUMMARY = "A toolkit for making real world machine learning and data analysis applications"
HOMEPAGE = "https://pypi.python.org/pypi/dlib"
PYPI_PACKAGE = "dlib"
LICENSE = "Boost-Software"
SRC_URI[md5sum] = "1e7e357d7d54e86267ef60f606cb40e1"
LIC_FILES_CHKSUM = "file://dlib/LICENSE.txt;md5=2c7a3fa82e66676005cd4ee2608fd7d2 \
                    file://dlib/external/libpng/LICENSE;md5=243135ddedf702158f9170807cbcfb66 \
                    file://dlib/external/pybind11/LICENSE;md5=beb87117af69fd10fbf9fb14c22a2e62 \
                    file://python_examples/LICENSE_FOR_EXAMPLE_PROGRAMS.txt;md5=064f53ab40ea2b6a4bba1324149e4fde \
"
DEPENDS = "cmake-native"

inherit  pypi setuptools3
BBCLASSEXTEND = "native nativesdk"

```


I'm not a bitbake or cmake expert, during do_compile() task i get the following error message
```
| [ 95%] Building CXX object CMakeFiles/_dlib_pybind11.dir/src/shape_predictor.cpp.o
| [ 96%] Building CXX object CMakeFiles/_dlib_pybind11.dir/src/correlation_tracker.cpp.o
| [ 96%] Building CXX object CMakeFiles/_dlib_pybind11.dir/src/face_recognition.cpp.o
| [ 97%] Building CXX object CMakeFiles/_dlib_pybind11.dir/src/cnn_face_detector.cpp.o
| [ 98%] Building CXX object CMakeFiles/_dlib_pybind11.dir/src/global_optimization.cpp.o
| [ 98%] Building CXX object CMakeFiles/_dlib_pybind11.dir/src/image_dataset_metadata.cpp.o
| [ 99%] Building CXX object CMakeFiles/_dlib_pybind11.dir/src/numpy_returns.cpp.o
| [100%] Building CXX object CMakeFiles/_dlib_pybind11.dir/src/line.cpp.o
| [100%] Linking CXX shared module build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/build/lib.linux-x86_64-3.8/_dlib_pybind11.cpython-38-aarch64-linux-gnu.so
| build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/recipe-sysroot-native/usr/bin/aarch64-poky-linux/../../libexec/aarch64-poky-linux/gcc/aarch64-poky-linux/8.3.0/ld: build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/recipe-sysroot-native/usr/lib/libsqlite3.so: error adding symbols: file in wrong format
| collect2: error: ld returned 1 exit status
| CMakeFiles/_dlib_pybind11.dir/build.make:445: recipe for target 'build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/build/lib.linux-x86_64-3.8/_dlib_pybind11.cpython-38-aarch64-linux-gnu.so' failed
| make[2]: *** [build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/build/lib.linux-x86_64-3.8/_dlib_pybind11.cpython-38-aarch64-linux-gnu.so] Error 1
| CMakeFiles/Makefile2:116: recipe for target 'CMakeFiles/_dlib_pybind11.dir/all' failed
| make[1]: *** [CMakeFiles/_dlib_pybind11.dir/all] Error 2
| Makefile:83: recipe for target 'all' failed
| make: *** [all] Error 2
| Traceback (most recent call last):
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/dlib-19.21.1/setup.py", line 223, in <module>
|     setup(
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/recipe-sysroot-native/usr/lib/python3.8/site-packages/setuptools/__init__.py", line 144, in setup
|     return distutils.core.setup(**attrs)
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/recipe-sysroot-native/usr/lib/python3.8/distutils/core.py", line 148, in setup
|     dist.run_commands()
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/recipe-sysroot-native/usr/lib/python3.8/distutils/dist.py", line 966, in run_commands
|     self.run_command(cmd)
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/recipe-sysroot-native/usr/lib/python3.8/distutils/dist.py", line 985, in run_command
|     cmd_obj.run()
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/recipe-sysroot-native/usr/lib/python3.8/distutils/command/build.py", line 135, in run
|     self.run_command(cmd_name)
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/recipe-sysroot-native/usr/lib/python3.8/distutils/cmd.py", line 313, in run_command
|     self.distribution.run_command(command)
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/recipe-sysroot-native/usr/lib/python3.8/distutils/dist.py", line 985, in run_command
|     cmd_obj.run()
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/dlib-19.21.1/setup.py", line 135, in run
|     self.build_extension(ext)
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/dlib-19.21.1/setup.py", line 175, in build_extension
|     subprocess.check_call(cmake_build, cwd=build_folder)
|   File "build_dunfell/tmp/work/aarch64-poky-linux/python3-dlib/19.21.1-r0/recipe-sysroot-native/usr/lib/python3.8/subprocess.py", line 364, in check_call
|     raise CalledProcessError(retcode, cmd)
| subprocess.CalledProcessError: Command '['cmake', '--build', '.', '--config', 'Release', '--', '-j8']' returned non-zero exit status 2.
| WARNING: exit code 1 from a shell command.
| 

```

Not sure why the linker **gcc/aarch64-poky-linux/8.3.0/ld** is showing the error
```
 error adding symbols: file in wrong format
```
Perhaps i'm messing things up with cmake-native environment but not sure how i can enable cmake to be used by setup.py if it is not with DEPENDS=cmake-native.

Any clue to solve this issue will be highly appreciated, or if you know who is already working on this it will be great to have its contact :)

Also i use dunfell branch for meta-oe

BR,

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