opencv/modules/CMakeLists.txt

if(ANDROID)
  ADD_DEFINITIONS(-DGTEST_HAS_STD_WSTRING=0)
  if(ANDROID_API_LEVEL LESS 8)
    ADD_DEFINITIONS(-DGTEST_HAS_CLONE=0)
  endif()
endif()

add_subdirectory(calib3d)
add_subdirectory(core)
add_subdirectory(features2d)
add_subdirectory(flann)

if(MSVC OR MINGW)
   if(NOT CMAKE_CL_64)
      add_subdirectory(ffmpeg)
   endif()
endif()

if(BUILD_TESTS)
  add_subdirectory(ts)
endif()
add_subdirectory(highgui)
add_subdirectory(imgproc)
add_subdirectory(legacy)
add_subdirectory(contrib)
add_subdirectory(ml)
add_subdirectory(objdetect)

if(PYTHONLIBS_FOUND AND BUILD_NEW_PYTHON_SUPPORT)
  add_subdirectory(python)
endif()

add_subdirectory(video)
add_subdirectory(traincascade)
add_subdirectory(haartraining)

if(NOT ANDROID)
  add_subdirectory(gpu)
  add_subdirectory(stitching)
endif()
Android cmake toolchain file is included into OpenCV 14 years ago			`if(ANDROID)`
Test system included into Android build 14 years ago			`ADD_DEFINITIONS(-DGTEST_HAS_STD_WSTRING=0)`
Android cmake toolchain file is included into OpenCV 14 years ago			`if(ANDROID_API_LEVEL LESS 8)`
			`ADD_DEFINITIONS(-DGTEST_HAS_CLONE=0)`
			`endif()`
Test system included into Android build 14 years ago			`endif()`

"atomic bomb" commit. Reorganized OpenCV directory structure 15 years ago			`add_subdirectory(calib3d)`
			`add_subdirectory(core)`
			`add_subdirectory(features2d)`
Updated FLANN to version 1.5 14 years ago			`add_subdirectory(flann)`
"atomic bomb" commit. Reorganized OpenCV directory structure 15 years ago
			`if(MSVC OR MINGW)`
			`if(NOT CMAKE_CL_64)`
			`add_subdirectory(ffmpeg)`
			`endif()`
			`endif()`

Conditional for the module ts, depending on whether tests are being built. 14 years ago			`if(BUILD_TESTS)`
Fixed tests compilation issue with low Android API levels. OpenCV successfully compiles for API level 3 and above. Enable tests for Android by default. 14 years ago			`add_subdirectory(ts)`
Conditional for the module ts, depending on whether tests are being built. 14 years ago			`endif()`
"atomic bomb" commit. Reorganized OpenCV directory structure 15 years ago			`add_subdirectory(highgui)`
			`add_subdirectory(imgproc)`
			`add_subdirectory(legacy)`
			`add_subdirectory(contrib)`
			`add_subdirectory(ml)`
			`add_subdirectory(objdetect)`

			`if(PYTHONLIBS_FOUND AND BUILD_NEW_PYTHON_SUPPORT)`
Fixed tests compilation issue with low Android API levels. OpenCV successfully compiles for API level 3 and above. Enable tests for Android by default. 14 years ago			`add_subdirectory(python)`
"atomic bomb" commit. Reorganized OpenCV directory structure 15 years ago			`endif()`

			`add_subdirectory(video)`
Merged android-experimental branch back to trunk. 14 years ago			`add_subdirectory(traincascade)`
			`add_subdirectory(haartraining)`
adding some small changes to support android build, mainly cmake stuff, but in persistance the wcstombs is not supported on android, and in sift.cpp there was and ifdef that affected arm and this causes undefined symbols on android. 14 years ago
fixed if condition syntax: ! -> NOT 14 years ago			`if(NOT ANDROID)`
Fixed tests compilation issue with low Android API levels. OpenCV successfully compiles for API level 3 and above. Enable tests for Android by default. 14 years ago			`add_subdirectory(gpu)`
added image stitching module 14 years ago			`add_subdirectory(stitching)`
adding some small changes to support android build, mainly cmake stuff, but in persistance the wcstombs is not supported on android, and in sift.cpp there was and ifdef that affected arm and this causes undefined symbols on android. 14 years ago			`endif()`