libfreenect fails to build with Python 3.8.0b1.

+ /usr/bin/cmake -DCMAKE_C_FLAGS_RELEASE:STRING=-DNDEBUG -DCMAKE_CXX_FLAGS_RELEASE:STRING=-DNDEBUG -DCMAKE_Fortran_FLAGS_RELEASE:STRING=-DNDEBUG -DCMAKE_VERBOSE_MAKEFILE:BOOL=ON -DCMAKE_INSTALL_PREFIX:PATH=/usr -DINCLUDE_INSTALL_DIR:PATH=/usr/include -DLIB_INSTALL_DIR:PATH=/usr/lib64 -DSYSCONF_INSTALL_DIR:PATH=/etc -DSHARE_INSTALL_PREFIX:PATH=/usr/share -DLIB_SUFFIX=64 -DBUILD_SHARED_LIBS:BOOL=ON .. -DBUILD_AUDIO=ON -DBUILD_C_SYNC=ON -DBUILD_CV=ON -DBUILD_REDIST_PACKAGE=ON -DBUILD_EXAMPLES=ON -DBUILD_FAKENECT=ON -DBUILD_PYTHON=OFF -DBUILD_PYTHON2=OFF -DBUILD_PYTHON3=ON -DBUILD_OPENNI2_DRIVER=ON
CMake Warning (dev) at /usr/share/cmake/Modules/FindOpenGL.cmake:275 (message):
  Policy CMP0072 is not set: FindOpenGL prefers GLVND by default when
  available.  Run "cmake --help-policy CMP0072" for policy details.  Use the
  cmake_policy command to set the policy and suppress this warning.

  FindOpenGL found both a legacy GL library:

    OPENGL_gl_LIBRARY: /usr/lib64/libGL.so

  and GLVND libraries for OpenGL and GLX:

    OPENGL_opengl_LIBRARY: /usr/lib64/libOpenGL.so
    OPENGL_glx_LIBRARY: /usr/lib64/libGLX.so

  OpenGL_GL_PREFERENCE has not been set to "GLVND" or "LEGACY", so for
  compatibility with CMake 3.10 and below the legacy GL library will be used.
Call Stack (most recent call first):
  examples/CMakeLists.txt:16 (find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at /usr/share/cmake/Modules/FindOpenGL.cmake:275 (message):
  Policy CMP0072 is not set: FindOpenGL prefers GLVND by default when
  available.  Run "cmake --help-policy CMP0072" for policy details.  Use the
  cmake_policy command to set the policy and suppress this warning.

  FindOpenGL found both a legacy GL library:

    OPENGL_gl_LIBRARY: /usr/lib64/libGL.so

  and GLVND libraries for OpenGL and GLX:

    OPENGL_opengl_LIBRARY: /usr/lib64/libOpenGL.so
    OPENGL_glx_LIBRARY: /usr/lib64/libGLX.so

  OpenGL_GL_PREFERENCE has not been set to "GLVND" or "LEGACY", so for
  compatibility with CMake 3.10 and below the legacy GL library will be used.
Call Stack (most recent call first):
  wrappers/cpp/CMakeLists.txt:7 (find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Error in wrappers/opencv/CMakeLists.txt:
  Imported target "opencv_calib3d" includes non-existent path

    "//include"

  in its INTERFACE_INCLUDE_DIRECTORIES.  Possible reasons include:

  * The path was deleted, renamed, or moved to another location.

  * An install or uninstall procedure did not complete successfully.

  * The installation package was faulty and references files it does not
  provide.



CMake Error in wrappers/opencv/CMakeLists.txt:
  Imported target "opencv_calib3d" includes non-existent path

    "//include"

  in its INTERFACE_INCLUDE_DIRECTORIES.  Possible reasons include:

  * The path was deleted, renamed, or moved to another location.

  * An install or uninstall procedure did not complete successfully.

  * The installation package was faulty and references files it does not
  provide.



CMake Warning:
  Manually-specified variables were not used by the project:

    BUILD_AUDIO
    CMAKE_Fortran_FLAGS_RELEASE
    INCLUDE_INSTALL_DIR
    LIB_INSTALL_DIR
    SHARE_INSTALL_PREFIX
    SYSCONF_INSTALL_DIR


error: Bad exit status from /var/tmp/rpm-tmp.pzumEv (%build)
~/build/BUILD/libfreenect-88166014859c09f6ad6a93f0862bdcc4e46dc87e/build ~/build/BUILD/libfreenect-88166014859c09f6ad6a93f0862bdcc4e46dc87e
-- The C compiler identification is GNU 9.1.1
-- The CXX compiler identification is GNU 9.1.1
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Operating system is Linux
-- Got System Processor x86_64
-- Linux x86_64 Detected
-- libfreenect will be installed to /usr
-- Headers will be installed to /usr/include/libfreenect
-- Libraries will be installed to /usr/lib64
-- Found libusb-1.0:
--  - Includes: /usr/include/libusb-1.0
--  - Libraries: /usr/lib64/libusb-1.0.so
-- Check if the system is big endian
-- Searching 16 bit integer
-- Looking for sys/types.h
-- Looking for sys/types.h - found
-- Looking for stdint.h
-- Looking for stdint.h - found
-- Looking for stddef.h
-- Looking for stddef.h - found
-- Check size of unsigned short
-- Check size of unsigned short - done
-- Using unsigned short
-- Check if the system is big endian - little endian
-- Found PythonInterp: /usr/bin/python3.8 (found version "3.8") 
-- Looking for include file pthread.h
-- Looking for include file pthread.h - found
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE  
-- Found OpenGL: /usr/lib64/libOpenGL.so   
-- Found GLUT: /usr/lib64/libglut.so  
-- Found OpenCV: / (found version "3.4.6") 
-- Found PythonInterp: /usr/bin/python3 (found version "3.8") 
-- Found PythonLibs: /usr/lib64/libpython3.so (found version "3.8.0b1") 
-- Configuring done
-- Generating done
-- Build files have been written to: /builddir/build/BUILD/libfreenect-88166014859c09f6ad6a93f0862bdcc4e46dc87e/build


RPM build errors:
    Bad exit status from /var/tmp/rpm-tmp.pzumEv (%build)

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.8/fedora-rawhide-x86_64/00939820-libfreenect/

For all our attempts to build libfreenect with Python 3.8, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.8/package/libfreenect/

Testing and mass rebuild of packages is happening in copr. You can follow these instructions to test locally in mock if your package builds with Python 3.8:
https://copr.fedorainfracloud.org/coprs/g/python/python3.8/

Let us know here if you have any questions.