CMake error with OpenCV

This is the log file

[INFO]:    Building opencv for armeabi-v7a
[INFO]:    -> directory context /home/kivy/Desktop/Cam/.buildozer/android/platform/build/build/other_builds/opencv/armeabi-v7a/opencv
[INFO]:    -> running cmake -DP4A=ON -DANDROID_ABI=armeabi-v7a -DCMAKE_TOOLCHAIN_FILE=/home/kivy/Desktop/Cam/.buildozer/android/platform/build/build/other_builds/o...(and 890 more)
           working: ThisException in thread background thread for pid 23973:                                                                                                                   
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 801, in __bootstrap_inner
    self.run()
  File "/usr/lib/python2.7/threading.py", line 754, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/usr/local/lib/python2.7/dist-packages/sh.py", line 2170, in background_thread
    handle_exit_code(exit_code)
  File "/usr/local/lib/python2.7/dist-packages/sh.py", line 1929, in fn
    return self.command.handle_command_exit_code(exit_code)
  File "/usr/local/lib/python2.7/dist-packages/sh.py", line 672, in handle_command_exit_code
    raise exc
ErrorReturnCode_1: 

  RAN: /usr/local/bin/cmake -DP4A=ON -DANDROID_ABI=armeabi-v7a -DCMAKE_TOOLCHAIN_FILE=/home/kivy/Desktop/Cam/.buildozer/android/platform/build/build/other_builds/opencv/armeabi-v7a/opencv/platforms/android/android.toolchain.cmake -DPYTHON_INCLUDE_PATH=/home/kivy/Desktop/Cam/.buildozer/android/platform/build/build/python-installs/myapp/include/python2.7 -DPYTHON_LIBRARY=/home/kivy/Desktop/Cam/.buildozer/android/platform/build/build/python-installs/myapp/lib/libpython2.7.so -DPYTHON_NUMPY_INCLUDE_DIR=/home/kivy/Desktop/Cam/.buildozer/android/platform/build/build/python-installs/myapp/lib/python2.7/site-packages/numpy/core/include -DANDROID_EXECUTABLE=/home/kivy/.buildozer/android/platform/android-sdk-20/tools/android -DBUILD_TESTS=OFF -DBUILD_PERF_TESTS=OFF -DBUILD_EXAMPLES=OFF -DBUILD_ANDROID_EXAMPLES=OFF -DPYTHON_PACKAGES_PATH=/home/kivy/Desktop/Cam/.buildozer/android/platform/build/build/python-installs/myapp/lib/python2.7/site-packages /home/kivy/Desktop/Cam/.buildozer/android/platform/build/build/other_builds/opencv/armeabi-v7a/opencv

  STDOUT:
CMake Deprecation Warning at CMakeLists.txt:47 (cmake_policy):
  The OLD behavior for policy CMP0022 will be removed from a future version
  of CMake.

  The cmake-policies(7) manual explains that the OLD behaviors of all
  policies are deprecated and that a policy should be set to OLD only under
  specific short-term circumstances.  Projects should be ported to the NEW
  behavior and not rely on setting a policy to OLD.


CMake Deprecation Warning at /usr/local/lib/python2.7/dist-packages/cmake/data/share/cmake-3.12/Modules/CMakeForceCompiler.cmake:69 (message):
  The CMAKE_FORCE_C_COMPILER macro is deprecated.  Instead just set
  CMAKE_C_COMPILER and allow CMake to identify the compiler.
Call Stack (most recent call first):
  platforms/android/android.toolchain.cmake:1204 (CMAKE_FORCE_C_COMPILER)
  CMakeFiles/3.12.0/CMakeSystem.cmake:6 (include)
  CMakeLists.txt:56 (project)


CMake Deprecation Warning at /usr/local/lib/python2.7/dist-packages/cmake/data/share/cmake-3.12/Modules/CMakeForceCompiler.cmake:83 (message):
  The CMAKE_FORCE_CXX_COMPILER macro is deprecated.  Instead just set
  CMAKE_CXX_COMPILER and allow CMake to identify the compiler.
Call Stack (most recent call first):
  platforms/android/android.toolchain.cmake:1212 (CMAKE_FORCE_CXX_COMPILER)
  CMakeFiles/3.12.0/CMakeSystem.cmake:6 (include)
  CMakeLists.txt:56 (project)


CMake Warning (dev) at platforms/android/android.toolchain.cmake:1668 (if):
  Policy CMP0054 is not set: Only interpret if() arguments as variables or
  keywords when unquoted.  Run "cmake --help-policy CMP0054" for policy
  details.  Use the cmake_policy command to set the policy and suppress this
  warning.

  Quoted variables like "LIBRARY_OUTPUT_PATH_ROOT" will no longer be
  dereferenced when the policy is set to NEW.  Since the policy is not set
  the OLD behavior will be used.
Call Stack (most recent call first):
  CMakeFiles/3.12.0/CMakeSystem.cmake:6 (include)
  CMakeLists.txt:56 (project)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Error: CMake was unable to find a build program corresponding to "Unix Makefiles".  CMAKE_MAKE_PROGRAM is not set.  You probably need to select a different build tool.
-- Configuring incomplete, errors occurred!
See also "/home/kivy/Desktop/Cam/.buildozer/android/platform/build/build/other_builds/opencv/armeabi-v7a/opencv/CMakeFiles/CMakeOutput.log".


  STDERR:


Traceback (most recent call last):
  File "/usr/lib/python2.7/runpy.py", line 174, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/home/kivy/Desktop/Manual /new/python-for-android/pythonforandroid/toolchain.py", line 977, in <module>
    main()
  File "/home/kivy/Desktop/Manual /new/python-for-android/pythonforandroid/toolchain.py", line 973, in main
    ToolchainCL()
  File "/home/kivy/Desktop/Manual /new/python-for-android/pythonforandroid/toolchain.py", line 512, in __init__
    getattr(self, args.subparser_name.replace('-', '_'))(args)
  File "/home/kivy/Desktop/Manual /new/python-for-android/pythonforandroid/toolchain.py", line 147, in wrapper_func
    build_dist_from_args(ctx, dist, args)
  File "/home/kivy/Desktop/Manual /new/python-for-android/pythonforandroid/toolchain.py", line 191, in build_dist_from_args
    build_recipes(build_order, python_modules, ctx)
  File "pythonforandroid/build.py", line 573, in build_recipes
  File "/home/kivy/Desktop/Manual /new/python-for-android/pythonforandroid/recipes/opencv/__init__.py", line 46, in build_arch
    _env=env)
  File "pythonforandroid/logger.py", line 176, in shprint
  File "/usr/local/lib/python2.7/dist-packages/sh.py", line 720, in next
    self.wait()
  File "/usr/local/lib/python2.7/dist-packages/sh.py", line 651, in wait
    self.handle_command_exit_code(exit_code)
  File "/usr/local/lib/python2.7/dist-packages/sh.py", line 672, in handle_command_exit_code
    raise exc
sh.ErrorReturnCode_1: 

  RAN: /usr/local/bin/cmake -DP4A=ON -DANDROID_ABI=armeabi-v7a -DCMAKE_TOOLCHAIN_FILE=/home/kivy/Desktop/Cam/.buildozer/android/platform/build/build/other_builds/opencv/armeabi-v7a/opencv/platforms/android/android.toolchain.cmake -DPYTHON_INCLUDE_PATH=/home/kivy/Desktop/Cam/.buildozer/android/platform/build/build/python-installs/myapp/include/python2.7 -DPYTHON_LIBRARY=/home/kivy/Desktop/Cam/.buildozer/android/platform/build/build/python-installs/myapp/lib/libpython2.7.so -DPYTHON_NUMPY_INCLUDE_DIR=/home/kivy/Desktop/Cam/.buildozer/android/platform/build/build/python-installs/myapp/lib/python2.7/site-packages/numpy/core/include -DANDROID_EXECUTABLE=/home/kivy/.buildozer/android/platform/android-sdk-20/tools/android -DBUILD_TESTS=OFF -DBUILD_PERF_TESTS=OFF -DBUILD_EXAMPLES=OFF -DBUILD_ANDROID_EXAMPLES=OFF -DPYTHON_PACKAGES_PATH=/home/kivy/Desktop/Cam/.buildozer/android/platform/build/build/python-installs/myapp/lib/python2.7/site-packages /home/kivy/Desktop/Cam/.buildozer/android/platform/build/build/other_builds/opencv/armeabi-v7a/opencv

  STDOUT:
CMake Deprecation Warning at CMakeLists.txt:47 (cmake_policy):
  The OLD behavior for policy CMP0022 will be removed from a future version
  of CMake.

  The cmake-policies(7) manual explains that the OLD behaviors of all
  policies are deprecated and that a policy should be set to OLD only under
  specific short-term circumstances.  Projects should be ported to the NEW
  behavior and not rely on setting a policy to OLD.


CMake Deprecation Warning at /usr/local/lib/python2.7/dist-packages/cmake/data/share/cmake-3.12/Modules/CMakeForceCompiler.cmake:69 (message):
  The CMAKE_FORCE_C_COMPILER macro is deprecated.  Instead just set
  CMAKE_C_COMPILER and allow CMake to identify the compiler.
Call Stack (most recent call first):
  platforms/android/android.toolchain.cmake:1204 (CMAKE_FORCE_C_COMPILER)
  CMakeFiles/3.12.0/CMakeSystem.cmake:6 (include)
  CMakeLists.txt:56 (project)


CMake Deprecation Warning at /usr/local/lib/python2.7/dist-packages/cmake/data/share/cmake-3.12/Modules/CMakeForceCompiler.cmake:83 (message):
  The CMAKE_FORCE_CXX_COMPILER macro is deprecated.  Instead just set
  CMAKE_CXX_COMPILER and allow CMake to identify the compiler.
Call Stack (most recent call first):
  platforms/android/android.toolchain.cmake:1212 (CMAKE_FORCE_CXX_COMPILER)
  CMakeFiles/3.12.0/CMakeSystem.cmake:6 (include)
  CMakeLists.txt:56 (project)


CMake Warning (dev) at platforms/android/android.toolchain.cmake:1668 (if):
  Policy CMP0054 is not set: Only interpret if() arguments as variables or
  keywords when unquoted.  Run "cmake --help-policy CMP0054" for policy
  details.  Use the cmake_policy command to set the policy and suppress this
  warning.

  Quoted variables like "LIBRARY_OUTPUT_PATH_ROOT" will no longer be
  dereferenced when the policy is set to NEW.  Since the policy is not set
  the OLD behavior will be used.
Call Stack (most recent call first):
  CMakeFiles/3.12.0/CMakeSystem.cmake:6 (include)
  CMakeLists.txt:56 (project)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Error: CMake was unable to find a build program corresponding to "Unix Makefiles".  CMAKE_MAKE_PROGRAM is not set.  You probably need to select a different build tool.
-- Configuring incomplete, errors occurred!
See also "/home/kivy/Desktop/Cam/.buildozer/android/platform/build/build/other_builds/opencv/armeabi-v7a/opencv/CMakeFiles/CMakeOutput.log".


  STDERR:

# Command failed: /usr/bin/python -m pythonforandroid.toolchain create --dist_name=myapp --bootstrap=sdl2 --requirements=kivy,opencv --arch armeabi-v7a --copy-libs --color=always --storage-dir=/home/kivy/Desktop/Cam/.buildozer/android/platform/build

CMake file log shows:

The target system is: Linux - 1 - armv7-a
The host system is: Linux - 4.10.0-20-generic - x86_64

[tito]

No, but you could try it yourself! Clone Python-for-android, edit the recipe, try to update to latest opencv, compile, and go error by error until it compiles 😃 Use Google, Stackoverflow and others recipes to get it working!

[inclement]

Fixed by #1650, other fixes can follow from that if necessary.