79 lines
3.8 KiB
CMake
79 lines
3.8 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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# 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_STRING ${GTSAM_PYTHON_VERSION}) # Remove '.' from version
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string(SUBSTRING ${BOOST_PYTHON_VERSION_STRING} 0 2 BOOST_PYTHON_VERSION_STRING) # Trim version number to 2 digits
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set(BOOST_PYTHON_VERSION_STRING "-py${BOOST_PYTHON_VERSION_STRING}") # Add '-py' prefix
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string(TOUPPER ${BOOST_PYTHON_VERSION_STRING} UPPER_BOOST_PYTHON_VERSION_STRING) # Get uppercase string
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else()
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set(BOOST_PYTHON_VERSION_STRING "")
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set(UPPER_BOOST_PYTHON_VERSION_STRING "")
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endif()
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# Find NumPy C-API
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find_package(NumPy)
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# Find Python
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# First, be sure that python version can be found by FindPythonLibs.cmake
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# See: http://stackoverflow.com/a/15660652/2220173
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set(Python_ADDITIONAL_VERSIONS ${GTSAM_PYTHON_VERSION})
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# Then look for the the lib. If no version is specified when looking for PythonLibs it searches the default version.
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# See: https://cmake.org/cmake/help/v3.1/module/FindPythonInterp.html
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if(GTSAM_PYTHON_VERSION STREQUAL "Default")
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find_package(PythonLibs)
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else()
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find_package(PythonLibs ${GTSAM_PYTHON_VERSION})
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endif()
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# Find Boost Python
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find_package(Boost COMPONENTS python${BOOST_PYTHON_VERSION_STRING})
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# Add handwritten directory if we found python and boost python
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if(Boost_PYTHON${UPPER_BOOST_PYTHON_VERSION_STRING}_FOUND AND PYTHONLIBS_FOUND AND NUMPY_FOUND)
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include_directories(${PYTHON_INCLUDE_DIRS})
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include_directories(${Boost_INCLUDE_DIRS})
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include_directories(${CMAKE_SOURCE_DIR}/gtsam/3rdparty/numpy_eigen/include/)
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add_subdirectory(handwritten)
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# Disable python module if we didn't find required lybraries
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else()
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set(GTSAM_BUILD_PYTHON OFF CACHE BOOL "Build Python wrapper statically (increases build time)" FORCE)
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endif()
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# Print warnings (useful for ccmake)
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if(NOT PYTHONLIBS_FOUND)
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if(GTSAM_PYTHON_VERSION STREQUAL "Default")
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message(WARNING "Default PythonLibs was not found -- Python module cannot be built. Option GTSAM_BUILD_PYTHON disabled.")
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else()
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message(WARNING "PythonLibs version ${GTSAM_PYTHON_VERSION} was not found -- Python module cannot be built. Option GTSAM_BUILD_PYTHON disabled.")
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endif()
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endif()
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if(NOT Boost_PYTHON${UPPER_BOOST_PYTHON_VERSION_STRING}_FOUND)
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if(GTSAM_PYTHON_VERSION STREQUAL "Default")
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message(WARNING "Default Boost python was not found -- Python module cannot be built. Option GTSAM_BUILD_PYTHON disabled.")
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else()
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message(WARNING "Boost Python for python ${GTSAM_PYTHON_VERSION} was not found -- Python module cannot be built. Option GTSAM_BUILD_PYTHON disabled.")
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endif()
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endif()
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if(NOT NUMPY_FOUND)
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message(WARNING "NumPy C-API was not found -- Python module cannot be built. Option GTSAM_BUILD_PYTHON disabled.")
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endif() |