97 lines
4.4 KiB
CMake
97 lines
4.4 KiB
CMake
# Guard to avoid breaking this code in ccmake if by accident GTSAM_PYTHON_VERSION is set to an empty string
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if(GTSAM_PYTHON_VERSION STREQUAL "")
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set(GTSAM_PYTHON_VERSION "Default" CACHE STRING "Target python version for GTSAM python module. Use 'Default' to chose the default version" FORCE)
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endif()
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# The code below allows to clear the PythonLibs cache if we change GTSAM_PYTHON_VERSION
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# Inspired from the solution found here: http://blog.bethcodes.com/cmake-tips-tricks-drop-down-list
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if(NOT DEFINED GTSAM_LAST_PYTHON_VERSION)
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set(GTSAM_LAST_PYTHON_VERSION ${GTSAM_PYTHON_VERSION} CACHE STRING "Python version used in the last build")
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mark_as_advanced(FORCE GTSAM_LAST_PYTHON_VERSION)
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endif()
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if(NOT (${GTSAM_PYTHON_VERSION} MATCHES ${GTSAM_LAST_PYTHON_VERSION}))
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unset(PYTHON_INCLUDE_DIR CACHE)
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unset(PYTHON_INCLUDE_DIR2 CACHE)
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unset(PYTHON_LIBRARY CACHE)
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unset(PYTHON_LIBRARY_DEBUG CACHE)
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set(GTSAM_LAST_PYTHON_VERSION ${GTSAM_PYTHON_VERSION} CACHE STRING "Updating python version used in the last build" FORCE)
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endif()
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if(GTSAM_PYTHON_VERSION STREQUAL "Default")
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# Search the default version.
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find_package(PythonInterp)
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find_package(PythonLibs)
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else()
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find_package(PythonInterp ${GTSAM_PYTHON_VERSION})
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find_package(PythonLibs ${GTSAM_PYTHON_VERSION})
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endif()
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# Find NumPy C-API -- this is part of the numpy package
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find_package(NumPy)
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# Compose strings used to specify the boost python version. They will be empty if we want to use the defaut
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if(NOT GTSAM_PYTHON_VERSION STREQUAL "Default")
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string(REPLACE "." "" BOOST_PYTHON_VERSION_SUFFIX ${GTSAM_PYTHON_VERSION}) # Remove '.' from version
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string(SUBSTRING ${BOOST_PYTHON_VERSION_SUFFIX} 0 2 BOOST_PYTHON_VERSION_SUFFIX) # Trim version number to 2 digits
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set(BOOST_PYTHON_VERSION_SUFFIX "-py${BOOST_PYTHON_VERSION_SUFFIX}") # Append '-py' prefix
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string(TOUPPER ${BOOST_PYTHON_VERSION_SUFFIX} BOOST_PYTHON_VERSION_SUFFIX_UPPERCASE) # Get uppercase string
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else()
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set(BOOST_PYTHON_VERSION_SUFFIX "")
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set(BOOST_PYTHON_VERSION_SUFFIX_UPPERCASE "")
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endif()
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# Find Boost Python
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find_package(Boost COMPONENTS python${BOOST_PYTHON_VERSION_SUFFIX})
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if(Boost_PYTHON${BOOST_PYTHON_VERSION_SUFFIX_UPPERCASE}_FOUND AND PYTHONLIBS_FOUND AND NUMPY_FOUND)
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# Build library
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include_directories(${NUMPY_INCLUDE_DIRS})
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include_directories(${PYTHON_INCLUDE_DIRS})
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include_directories(${Boost_INCLUDE_DIRS})
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include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include/)
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# Build the python module library
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add_subdirectory(handwritten)
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# Create and invoke setup.py, see https://bloerg.net/2012/11/10/cmake-and-distutils.html
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set(SETUP_PY_IN "${CMAKE_CURRENT_SOURCE_DIR}/setup.py.in")
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set(SETUP_PY "${CMAKE_CURRENT_BINARY_DIR}/setup.py")
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# Hacky way to figure out install folder - valid for Linux & Mac
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# default pattern: prefix/lib/pythonX.Y/site-packages from https://docs.python.org/2/install/
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SET(PY_INSTALL_FOLDER "${CMAKE_INSTALL_PREFIX}/lib/python${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR}/site-packages")
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configure_file(${SETUP_PY_IN} ${SETUP_PY})
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# TODO(frank): possibly support a different prefix a la matlab wrapper
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install(CODE "execute_process(WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR} COMMAND ${PYTHON_EXECUTABLE} setup.py -v install --prefix ${CMAKE_INSTALL_PREFIX})")
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else()
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# Disable python module if we didn't find required libraries
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# message will print at end of main CMakeLists.txt
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SET(GTSAM_PYTHON_WARNINGS "Python dependencies not found - Python module will not be built. Set GTSAM_BUILD_PYTHON to 'Off' to disable this warning. Details:")
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if(NOT PYTHONLIBS_FOUND)
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if(GTSAM_PYTHON_VERSION STREQUAL "Default")
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SET(GTSAM_PYTHON_WARNINGS "${GTSAM_PYTHON_WARNINGS}\n -- Default PythonLibs not found")
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else()
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SET(GTSAM_PYTHON_WARNINGS "${GTSAM_PYTHON_WARNINGS}\n -- PythonLibs version ${GTSAM_PYTHON_VERSION} not found")
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endif()
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endif()
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if(NOT NUMPY_FOUND)
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SET(GTSAM_PYTHON_WARNINGS "${GTSAM_PYTHON_WARNINGS}\n -- Numpy not found")
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endif()
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if(NOT Boost_PYTHON${BOOST_PYTHON_VERSION_SUFFIX_UPPERCASE}_FOUND)
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if(GTSAM_PYTHON_VERSION STREQUAL "Default")
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SET(GTSAM_PYTHON_WARNINGS "${GTSAM_PYTHON_WARNINGS}\n -- Default Boost python not found")
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else()
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SET(GTSAM_PYTHON_WARNINGS "${GTSAM_PYTHON_WARNINGS}\n -- Boost Python for python ${GTSAM_PYTHON_VERSION} not found")
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endif()
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endif()
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# make available at top-level
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SET(GTSAM_PYTHON_WARNINGS ${GTSAM_PYTHON_WARNINGS} PARENT_SCOPE)
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endif()
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