opencv/cmake/OpenCVDetectPython.cmake

74 lines
3.2 KiB
CMake

find_host_package(PythonInterp)
set(PYTHON_USE_NUMPY 0)
set(HAVE_SPHINX 0)
if(PYTHON_EXECUTABLE)
if(NOT ANDROID AND NOT IOS)
find_host_package(PythonLibs)
# cmake 2.4 (at least on Ubuntu 8.04 (hardy)) don't define PYTHONLIBS_FOUND
if(NOT PYTHONLIBS_FOUND AND PYTHON_INCLUDE_PATH)
set(PYTHONLIBS_FOUND ON)
endif()
endif()
execute_process(COMMAND ${PYTHON_EXECUTABLE} --version
ERROR_VARIABLE PYTHON_VERSION_FULL
OUTPUT_STRIP_TRAILING_WHITESPACE)
string(REGEX MATCH "[0-9]+.[0-9]+" PYTHON_VERSION_MAJOR_MINOR "${PYTHON_VERSION_FULL}")
if(CMAKE_HOST_UNIX)
execute_process(COMMAND ${PYTHON_EXECUTABLE} -c "from distutils.sysconfig import *; print get_python_lib()"
RESULT_VARIABLE PYTHON_CVPY_PROCESS
OUTPUT_VARIABLE PYTHON_STD_PACKAGES_PATH
OUTPUT_STRIP_TRAILING_WHITESPACE)
if("${PYTHON_STD_PACKAGES_PATH}" MATCHES "site-packages")
set(PYTHON_PACKAGES_PATH lib/python${PYTHON_VERSION_MAJOR_MINOR}/site-packages CACHE PATH "Where to install the python packages.")
else() #debian based assumed, install to the dist-packages.
set(PYTHON_PACKAGES_PATH lib/python${PYTHON_VERSION_MAJOR_MINOR}/dist-packages CACHE PATH "Where to install the python packages.")
endif()
elseif(CMAKE_HOST_WIN32)
get_filename_component(PYTHON_PATH "${PYTHON_EXECUTABLE}" PATH)
file(TO_CMAKE_PATH "${PYTHON_PATH}" PYTHON_PATH)
if(NOT EXISTS "${PYTHON_PATH}/Lib/site-packages")
unset(PYTHON_PATH)
get_filename_component(PYTHON_PATH "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${PYTHON_VERSION_MAJOR_MINOR}\\InstallPath]" ABSOLUTE)
file(TO_CMAKE_PATH "${PYTHON_PATH}" PYTHON_PATH)
endif()
set(PYTHON_PACKAGES_PATH "${PYTHON_PATH}/Lib/site-packages")
endif()
if(NOT ANDROID AND NOT IOS)
# Attempt to discover the NumPy include directory. If this succeeds, then build python API with NumPy
execute_process(COMMAND ${PYTHON_EXECUTABLE} -c "import os; os.environ['DISTUTILS_USE_SDK']='1'; import numpy.distutils; print numpy.distutils.misc_util.get_numpy_include_dirs()[0]"
RESULT_VARIABLE PYTHON_NUMPY_PROCESS
OUTPUT_VARIABLE PYTHON_NUMPY_INCLUDE_DIRS
OUTPUT_STRIP_TRAILING_WHITESPACE)
if(PYTHON_NUMPY_PROCESS EQUAL 0)
set(PYTHON_USE_NUMPY 1)
add_definitions(-DPYTHON_USE_NUMPY=1)
file(TO_CMAKE_PATH "${PYTHON_NUMPY_INCLUDE_DIRS}" PYTHON_NUMPY_INCLUDE_DIRS)
ocv_include_directories(${PYTHON_NUMPY_INCLUDE_DIRS})
message(STATUS " Use NumPy headers from: ${PYTHON_NUMPY_INCLUDE_DIRS}")
endif()
endif()
if(BUILD_DOCS)
# look for Sphinx
execute_process(COMMAND ${PYTHON_EXECUTABLE} -c "import sphinx; print sphinx.__version__"
RESULT_VARIABLE SPHINX_PROCESS
OUTPUT_VARIABLE SPHINX_VERSION
OUTPUT_STRIP_TRAILING_WHITESPACE)
if(SPHINX_PROCESS EQUAL 0)
find_host_program(SPHINX_BUILD sphinx-build)
if(SPHINX_BUILD)
set(HAVE_SPHINX 1)
message(STATUS " Found Sphinx ${SPHINX_VERSION}: ${SPHINX_BUILD}")
endif()
endif()
endif(BUILD_DOCS)
endif(PYTHON_EXECUTABLE)