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opencv/cmake/OpenCVDetectPython.cmake

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CMake
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Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
# Find specified Python version
# Arguments:
# preferred_version (value): Version to check for first
# min_version (value): Minimum supported version
# library_env (value): Name of Python library ENV variable to check
# include_dir_env (value): Name of Python include directory ENV variable to check
# found (variable): Set if interpreter found
# executable (variable): Output of executable found
# version_string (variable): Output of found version
# version_major (variable): Output of found major version
# version_minor (variable): Output of found minor version
# libs_found (variable): Set if libs found
# libs_version_string (variable): Output of found libs version
# libraries (variable): Output of found Python libraries
# library (variable): Output of found Python library
# debug_libraries (variable): Output of found Python debug libraries
# debug_library (variable): Output of found Python debug library
# include_path (variable): Output of found Python include path
# include_dir (variable): Output of found Python include dir
# include_dir2 (variable): Output of found Python include dir2
# packages_path (variable): Output of found Python packages path
# numpy_include_dirs (variable): Output of found Python Numpy include dirs
# numpy_version (variable): Output of found Python Numpy version
function(find_python preferred_version min_version library_env include_dir_env
found executable version_string version_major version_minor
libs_found libs_version_string libraries library debug_libraries
debug_library include_path include_dir include_dir2 packages_path
numpy_include_dirs numpy_version)
fix binary package build
2014-08-08 21:24:59 +08:00
ocv_check_environment_variables(${executable})
if(${executable})
set(PYTHON_EXECUTABLE "${${executable}}")
endif()
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
if(WIN32 AND NOT ${executable})
# search for executable with the same bitness as resulting binaries
# standard FindPythonInterp always prefers executable from system path
# this is really important because we are using the interpreter for numpy search and for choosing the install location
foreach(_CURRENT_VERSION ${Python_ADDITIONAL_VERSIONS} "${preferred_version}" "${min_version}")
find_host_program(executable
NAMES python${_CURRENT_VERSION} python
PATHS
[HKEY_LOCAL_MACHINE\\\\SOFTWARE\\\\Python\\\\PythonCore\\\\${_CURRENT_VERSION}\\\\InstallPath]
[HKEY_CURRENT_USER\\\\SOFTWARE\\\\Python\\\\PythonCore\\\\${_CURRENT_VERSION}\\\\InstallPath]
NO_SYSTEM_ENVIRONMENT_PATH
)
endforeach()
endif()
Global CMake reorganization: [~] Automatically tracked dependencies between modules [+] Support for optional module dependencies [+] Options to choose modules to build [~] Removed hardcoded modules lists from OpenCVConfig.cmake, opencv.pc and OpenCV.mk [+] Added COMPONENTS support for FIND_PACKAGE(OpenCV) [~] haartraining and traincascade are moved outside of modules folder since they aren't the modules
2012-02-03 19:26:49 +08:00
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
find_host_package(PythonInterp "${preferred_version}")
if(NOT PYTHONINTERP_FOUND)
find_host_package(PythonInterp "${min_version}")
endif()
merged 2.4 into trunk
2012-04-30 22:33:52 +08:00
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
if(PYTHONINTERP_FOUND)
# Copy outputs
set(_found ${PYTHONINTERP_FOUND})
set(_executable ${PYTHON_EXECUTABLE})
set(_version_string ${PYTHON_VERSION_STRING})
set(_version_major ${PYTHON_VERSION_MAJOR})
set(_version_minor ${PYTHON_VERSION_MINOR})
set(_version_patch ${PYTHON_VERSION_PATCH})
Normalize line endings and whitespace
2012-10-17 07:18:30 +08:00
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
# Clear find_host_package side effects
unset(PYTHONINTERP_FOUND)
unset(PYTHON_EXECUTABLE CACHE)
unset(PYTHON_VERSION_STRING)
unset(PYTHON_VERSION_MAJOR)
unset(PYTHON_VERSION_MINOR)
unset(PYTHON_VERSION_PATCH)
Fixed some build warnings; slightly improved python search
2012-03-02 16:34:54 +08:00
endif()
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
if(_found)
set(_version_major_minor "${_version_major}.${_version_minor}")
if(NOT ANDROID AND NOT IOS)
ocv_check_environment_variables(${library_env} ${include_dir_env})
if(${library})
set(PYTHON_LIBRARY "${${library_env}}")
#1508 prefer architecture-specific install directory for python bindings, when LIB_SUFFIX is used
2012-03-28 21:37:58 +08:00
endif()
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
if(${include_dir})
set(PYTHON_INCLUDE_DIR "${${include_dir_env}}")
#1508 prefer architecture-specific install directory for python bindings, when LIB_SUFFIX is used
2012-03-28 21:37:58 +08:00
endif()
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
# not using _version_string here, because it might not conform to the CMake version format
Changed cmake python library search startegy for crosscompiling
2014-09-04 20:28:11 +08:00
if(CMAKE_CROSSCOMPILING)
# builder version can differ from target, matching base version (e.g. 2.7)
find_host_package(PythonLibs "${_version_major_minor}")
else()
find_host_package(PythonLibs "${_version_major_minor}.${_version_patch}" EXACT)
endif()
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
if(PYTHONLIBS_FOUND)
# Copy outputs
set(_libs_found ${PYTHONLIBS_FOUND})
set(_libraries ${PYTHON_LIBRARIES})
set(_include_path ${PYTHON_INCLUDE_PATH})
set(_include_dirs ${PYTHON_INCLUDE_DIRS})
set(_debug_libraries ${PYTHON_DEBUG_LIBRARIES})
set(_libs_version_string ${PYTHONLIBS_VERSION_STRING})
set(_debug_library ${PYTHON_DEBUG_LIBRARY})
set(_library ${PYTHON_LIBRARY})
set(_library_debug ${PYTHON_LIBRARY_DEBUG})
set(_library_release ${PYTHON_LIBRARY_RELEASE})
set(_include_dir ${PYTHON_INCLUDE_DIR})
set(_include_dir2 ${PYTHON_INCLUDE_DIR2})
# Clear find_host_package side effects
unset(PYTHONLIBS_FOUND)
unset(PYTHON_LIBRARIES)
unset(PYTHON_INCLUDE_PATH)
unset(PYTHON_INCLUDE_DIRS)
unset(PYTHON_DEBUG_LIBRARIES)
unset(PYTHONLIBS_VERSION_STRING)
unset(PYTHON_DEBUG_LIBRARY CACHE)
unset(PYTHON_LIBRARY)
unset(PYTHON_LIBRARY_DEBUG)
unset(PYTHON_LIBRARY_RELEASE)
unset(PYTHON_LIBRARY CACHE)
unset(PYTHON_LIBRARY_DEBUG CACHE)
unset(PYTHON_LIBRARY_RELEASE CACHE)
unset(PYTHON_INCLUDE_DIR CACHE)
unset(PYTHON_INCLUDE_DIR2 CACHE)
#1508 prefer architecture-specific install directory for python bindings, when LIB_SUFFIX is used
2012-03-28 21:37:58 +08:00
endif()
Fixed some build warnings; slightly improved python search
2012-03-02 16:34:54 +08:00
endif()
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
if(NOT ANDROID AND NOT IOS)
if(CMAKE_HOST_UNIX)
execute_process(COMMAND ${_executable} -c "from distutils.sysconfig import *; print(get_python_lib())"
RESULT_VARIABLE _cvpy_process
OUTPUT_VARIABLE _std_packages_path
reorder the if's for clarity
2014-01-21 17:01:52 +08:00
OUTPUT_STRIP_TRAILING_WHITESPACE)
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
if("${_std_packages_path}" MATCHES "site-packages")
set(_packages_path "python${_version_major_minor}/site-packages")
else() #debian based assumed, install to the dist-packages.
set(_packages_path "python${_version_major_minor}/dist-packages")
endif()
if(EXISTS "${CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX}/${${packages_path}}")
set(_packages_path "lib${LIB_SUFFIX}/${_packages_path}")
else()
set(_packages_path "lib/${_packages_path}")
endif()
elseif(CMAKE_HOST_WIN32)
get_filename_component(_path "${_executable}" PATH)
file(TO_CMAKE_PATH "${_path}" _path)
if(NOT EXISTS "${_path}/Lib/site-packages")
unset(_path)
get_filename_component(_path "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_version_major_minor}\\InstallPath]" ABSOLUTE)
if(NOT _path)
get_filename_component(_path "[HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\${_version_major_minor}\\InstallPath]" ABSOLUTE)
endif()
file(TO_CMAKE_PATH "${_path}" _path)
endif()
set(_packages_path "${_path}/Lib/site-packages")
unset(_path)
endif()
set(_numpy_include_dirs ${${numpy_include_dirs}})
if(NOT _numpy_include_dirs)
if(CMAKE_CROSSCOMPILING)
message(STATUS "Cannot probe for Python/Numpy support (because we are cross-compiling OpenCV)")
message(STATUS "If you want to enable Python/Numpy support, set the following variables:")
message(STATUS " PYTHON2_INCLUDE_PATH")
message(STATUS " PYTHON2_LIBRARIES")
message(STATUS " PYTHON2_NUMPY_INCLUDE_DIRS")
message(STATUS " PYTHON3_INCLUDE_PATH")
message(STATUS " PYTHON3_LIBRARIES")
message(STATUS " PYTHON3_NUMPY_INCLUDE_DIRS")
else()
# Attempt to discover the NumPy include directory. If this succeeds, then build python API with NumPy
execute_process(COMMAND "${_executable}" -c "import os; os.environ['DISTUTILS_USE_SDK']='1'; import numpy.distutils; print(os.pathsep.join(numpy.distutils.misc_util.get_numpy_include_dirs()))"
RESULT_VARIABLE _numpy_process
OUTPUT_VARIABLE _numpy_include_dirs
OUTPUT_STRIP_TRAILING_WHITESPACE)
Normalize line endings and whitespace
2012-10-17 07:18:30 +08:00
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
if(NOT _numpy_process EQUAL 0)
unset(_numpy_include_dirs)
endif()
reorder the if's for clarity
2014-01-21 17:01:52 +08:00
endif()
merged all the latest changes from 2.4 to trunk
2012-04-14 05:50:59 +08:00
endif()
Normalize line endings and whitespace
2012-10-17 07:18:30 +08:00
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
if(_numpy_include_dirs)
file(TO_CMAKE_PATH "${_numpy_include_dirs}" _numpy_include_dirs)
if(CMAKE_CROSSCOMPILING)
if(NOT _numpy_version)
set(_numpy_version "undefined - cannot be probed because of the cross-compilation")
endif()
else()
execute_process(COMMAND "${_executable}" -c "import numpy; print(numpy.version.version)"
RESULT_VARIABLE _numpy_process
OUTPUT_VARIABLE _numpy_version
OUTPUT_STRIP_TRAILING_WHITESPACE)
reorder the if's for clarity
2014-01-21 17:01:52 +08:00
endif()
fix cross-compilation issue with Numpy
2014-01-20 17:23:46 +08:00
endif()
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
endif(NOT ANDROID AND NOT IOS)
endif()
# Export return values
set(${found} "${_found}" PARENT_SCOPE)
set(${executable} "${_executable}" CACHE FILEPATH "Path to Python interpretor")
set(${version_string} "${_version_string}" PARENT_SCOPE)
set(${version_major} "${_version_major}" PARENT_SCOPE)
set(${version_minor} "${_version_minor}" PARENT_SCOPE)
set(${libs_found} "${_libs_found}" PARENT_SCOPE)
set(${libs_version_string} "${_libs_version_string}" PARENT_SCOPE)
set(${libraries} "${_libraries}" PARENT_SCOPE)
set(${library} "${_library}" CACHE FILEPATH "Path to Python library")
set(${debug_libraries} "${_debug_libraries}" PARENT_SCOPE)
set(${debug_library} "${_debug_library}" CACHE FILEPATH "Path to Python debug")
set(${include_path} "${_include_path}" PARENT_SCOPE)
set(${include_dir} "${_include_dir}" CACHE PATH "Python include dir")
set(${include_dir2} "${_include_dir2}" CACHE PATH "Python include dir 2")
set(${packages_path} "${_packages_path}" CACHE PATH "Where to install the python packages.")
set(${numpy_include_dirs} ${_numpy_include_dirs} CACHE PATH "Path to numpy headers")
set(${numpy_version} "${_numpy_version}" PARENT_SCOPE)
endfunction(find_python)
find_python(2.7 "${MIN_VER_PYTHON2}" PYTHON2_LIBRARY PYTHON2_INCLUDE_DIR
PYTHON2INTERP_FOUND PYTHON2_EXECUTABLE PYTHON2_VERSION_STRING
PYTHON2_VERSION_MAJOR PYTHON2_VERSION_MINOR PYTHON2LIBS_FOUND
PYTHON2LIBS_VERSION_STRING PYTHON2_LIBRARIES PYTHON2_LIBRARY
PYTHON2_DEBUG_LIBRARIES PYTHON2_LIBRARY_DEBUG PYTHON2_INCLUDE_PATH
PYTHON2_INCLUDE_DIR PYTHON2_INCLUDE_DIR2 PYTHON2_PACKAGES_PATH
PYTHON2_NUMPY_INCLUDE_DIRS PYTHON2_NUMPY_VERSION)
find_python(3.4 "${MIN_VER_PYTHON3}" PYTHON3_LIBRARY PYTHON3_INCLUDE_DIR
PYTHON3INTERP_FOUND PYTHON3_EXECUTABLE PYTHON3_VERSION_STRING
PYTHON3_VERSION_MAJOR PYTHON3_VERSION_MINOR PYTHON3LIBS_FOUND
PYTHON3LIBS_VERSION_STRING PYTHON3_LIBRARIES PYTHON3_LIBRARY
PYTHON3_DEBUG_LIBRARIES PYTHON3_LIBRARY_DEBUG PYTHON3_INCLUDE_PATH
PYTHON3_INCLUDE_DIR PYTHON3_INCLUDE_DIR2 PYTHON3_PACKAGES_PATH
PYTHON3_NUMPY_INCLUDE_DIRS PYTHON3_NUMPY_VERSION)
# Use Python 2 as default Python interpreter
Fixed java tests build - disabled xfeature2d dependency for java wrappers - fixed java wrappers build after cmake rerun - disabled opencv_ml tests temporarily - fixed Imgproc usage in java tests
2014-09-08 21:35:55 +08:00
if(PYTHON2INTERP_FOUND)
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
set(PYTHON_DEFAULT_AVAILABLE "TRUE")
set(PYTHON_DEFAULT_EXECUTABLE "${PYTHON2_EXECUTABLE}")
Removed old Python detection cruft. None of this should be relevant as of CMake 2.8.7.
2013-08-23 22:24:02 +08:00
endif()
Moved Sphinx detection outside of the PYTHONINTERP_FOUND block. Who knows, maybe the user's Sphinx installation uses a Python we couldn't find.
2013-08-23 22:43:06 +08:00
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python.
2014-06-30 04:45:24 +08:00
unset(HAVE_SPHINX CACHE)
Moved Sphinx detection outside of the PYTHONINTERP_FOUND block. Who knows, maybe the user's Sphinx installation uses a Python we couldn't find.
2013-08-23 22:43:06 +08:00
if(BUILD_DOCS)
find_host_program(SPHINX_BUILD sphinx-build)
Added plantuml extension Aligned strings in CMakeList Modified the check on plantuml extension Some fixes Moved find_host_program for plantuml script
2013-09-04 22:00:50 +08:00
find_host_program(PLANTUML plantuml)
Moved Sphinx detection outside of the PYTHONINTERP_FOUND block. Who knows, maybe the user's Sphinx installation uses a Python we couldn't find.
2013-08-23 22:43:06 +08:00
if(SPHINX_BUILD)
execute_process(COMMAND "${SPHINX_BUILD}"
OUTPUT_QUIET
ERROR_VARIABLE SPHINX_OUTPUT
OUTPUT_STRIP_TRAILING_WHITESPACE)
if(SPHINX_OUTPUT MATCHES "Sphinx v([0-9][^ \n]*)")
set(SPHINX_VERSION "${CMAKE_MATCH_1}")
set(HAVE_SPHINX 1)
message(STATUS "Found Sphinx ${SPHINX_VERSION}: ${SPHINX_BUILD}")
endif()
endif()
endif(BUILD_DOCS)
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