--- /dev/null
+# Copyright (C) 2013-2014 CEA/DEN, EDF R&D, OPEN CASCADE
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+# See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+#
+# Author: Adrien Bruneton
+#
+
+# Python libraries and interpreter detection for SALOME
+#
+# !! Please read the generic detection procedure in SalomeMacros.cmake !!
+#
+# The interpreter is found first, and if OK, the corresponding libraries are searched.
+# We ensure the version of the libraries matches the one of the interpreter.
+#
+# We also look for an installation of NumPy, and if found the following variables are set
+# NUMPY_INCLUDE_DIR - NumPy header location
+# NUMPY_DEFINITIONS - compiler flag
+# and are automatically appended to PYTHON_INCLUDE_DIRS (and PYTHON_DEFINITIONS resp.)
+#
+
+# 1. Load environment or any previously detected Python
+IF(DEFINED ENV{PYTHON_ROOT_DIR})
+ FILE(TO_CMAKE_PATH "$ENV{PYTHON_ROOT_DIR}" _PYTHON_ROOT_DIR_ENV)
+ SET(_dflt_value "${_PYTHON_ROOT_DIR_ENV}")
+ELSE()
+ # will be blank if no Python was previously loaded
+ SET(_dflt_value "${PYTHON_ROOT_DIR_EXP}")
+ENDIF()
+
+# Make cache entry
+SET(PYTHON_ROOT_DIR "${_dflt_value}" CACHE PATH "Path to Python directory (interpreter and libs)")
+
+# 2. Find package - config mode first (i.e. looking for XYZ-config.cmake)
+IF(WIN32)
+ IF(CMAKE_BUILD_TYPE STREQUAL Debug)
+ SET(PythonInterp_FIND_VERSION _d)
+ SET(PYTHON_DEFINITIONS "-DHAVE_DEBUG_PYTHON")
+ ENDIF(CMAKE_BUILD_TYPE STREQUAL Debug)
+ENDIF(WIN32)
+IF(EXISTS "${PYTHON_ROOT_DIR}")
+ # Hope to find direclty a CMake config file there
+ SET(_CONF_DIR "${PYTHON_ROOT_DIR}/share/cmake")
+
+ # Try find_package in config mode with a hard-coded guess. This
+ # has the priority.
+ FIND_PACKAGE(Python CONFIG QUIET PATHS "${_CONF_DIR}")
+ MARK_AS_ADVANCED(Python_DIR)
+
+ IF (NOT PYTHON_FOUND)
+ LIST(APPEND CMAKE_PREFIX_PATH "${PYTHON_ROOT_DIR}")
+ ELSE()
+ MESSAGE(STATUS "Found Python in CONFIG mode!")
+ ENDIF()
+ENDIF()
+
+# Otherwise try the standard way (module mode, with the standard CMake Find*** macro):
+SALOME_FIND_PACKAGE(SalomePython PythonInterp MODULE)
+SET(_found1 ${PYTHONINTERP_FOUND})
+
+IF (PYTHONINTERP_FOUND)
+ # Now ensure we find the Python libraries matching the interpreter:
+ # This uses the variable PYTHON_EXECUTABLE
+
+ GET_FILENAME_COMPONENT(_python_bin "${PYTHON_EXECUTABLE}" NAME )
+ SET(PYTHONBIN "${_python_bin}" CACHE STRING "Name of Python interpreter")
+
+ GET_FILENAME_COMPONENT(_python_dir "${PYTHON_EXECUTABLE}" PATH)
+ GET_FILENAME_COMPONENT(CMAKE_INCLUDE_PATH "${_python_dir}/../include/python${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR}" ABSOLUTE)
+ GET_FILENAME_COMPONENT(CMAKE_LIBRARY_PATH "${_python_dir}/../lib" ABSOLUTE)
+ # For a Windows install, this might look more like this:
+ IF(WIN32)
+ LIST(APPEND CMAKE_LIBRARY_PATH "${_python_dir}/libs" ABSOLUTE)
+ LIST(APPEND CMAKE_INCLUDE_PATH "${_python_dir}/include" ABSOLUTE)
+ ENDIF()
+ # Override the EXACT and VERSION settings of the SalomePython module
+ # to force the next call to SALOME_FIND_PACKAGE() to find the exact matching
+ # version:
+ SET(_old_EXACT ${SalomePython_FIND_VERSION_EXACT})
+ SET(_old_VERSION "${SalomePython_FIND_VERSION}")
+ SET(SalomePython_FIND_VERSION_EXACT TRUE)
+ SET(SalomePython_FIND_VERSION "${PYTHON_VERSION_STRING}")
+ # Prepare call to FIND_PACKAGE(PythonLibs) and ensure priority is given to
+ # the location found for the interpreter:
+ GET_FILENAME_COMPONENT(_tmp "${_python_dir}" PATH)
+# SET(PYTHON_LIBRARY ${_tmp}/lib)
+# SET(PYTHON_INCLUDE_DIR ${_tmp}/include)
+ SALOME_FIND_PACKAGE(SalomePython PythonLibs MODULE)
+ # Restore variables:
+ SET(SalomePython_FIND_VERSION_EXACT ${_old_EXACT})
+ SET(SalomePython_FIND_VERSION "${_old_VERSION}")
+ENDIF()
+
+# Set the FOUND flag for SalomePython and Python:
+SET(SALOMEPYTHON_FOUND FALSE)
+IF (_found1 AND PYTHONLIBS_FOUND)
+ SET(SALOMEPYTHON_FOUND TRUE)
+ SET(Python_FOUND TRUE)
+ELSE()
+SET(SALOMEPYTHON_FOUND FALSE)
+ SET(Python_FOUND FALSE)
+ENDIF()
+
+IF (SALOMEPYTHON_FOUND)
+ MESSAGE(STATUS "Python interpreter and Python libraries found:")
+ MESSAGE(STATUS "Python libraries: ${PYTHON_LIBRARY}")
+ MESSAGE(STATUS "Python include dir: ${PYTHON_INCLUDE_DIR}")
+
+ # 3. Set the root dir which was finally retained
+ # For Python this is the grand-parent of the
+ # include directory:
+ GET_FILENAME_COMPONENT(_tmp_ROOT_DIR "${PYTHON_INCLUDE_DIR}" PATH)
+ IF(NOT WIN32)
+ GET_FILENAME_COMPONENT(_tmp_ROOT_DIR "${_tmp_ROOT_DIR}" PATH)
+ ENDIF()
+
+ # 4. Warn if CMake found something not located under ENV(XYZ_ROOT_DIR)
+ IF(DEFINED ENV{PYTHON_ROOT_DIR})
+ SALOME_CHECK_EQUAL_PATHS(_res "${_tmp_ROOT_DIR}" "${_PYTHON_ROOT_DIR_ENV}")
+ IF(NOT _res)
+ MESSAGE(WARNING "Python was found, but not a the path given by the "
+"environment PYTHON_ROOT_DIR! Is the variable correctly set?")
+ ELSE()
+ MESSAGE(STATUS "Python found directory matches what was specified in the PYTHON_ROOT_DIR, all good!")
+ ENDIF()
+ ENDIF()
+
+ # 5. Conflict detection
+ # 5.1 From another prerequisite using Python
+ IF(PYTHON_ROOT_DIR_EXP)
+ SALOME_CHECK_EQUAL_PATHS(_res "${_tmp_ROOT_DIR}" "${PYTHON_ROOT_DIR_EXP}")
+ IF(NOT _res)
+ MESSAGE(WARNING "Warning: Python: detected version conflicts with a previously found Python!"
+ "The two paths are " ${_tmp_ROOT_DIR} " vs " ${PYTHON_ROOT_DIR_EXP})
+ ELSE()
+ MESSAGE(STATUS "Python directory matches what was previously exposed by another prereq, all good!")
+ ENDIF()
+ ENDIF()
+
+ ##
+ ## 6. Save the final detected installation
+ ##
+ SET(PYTHON_ROOT_DIR "${_tmp_ROOT_DIR}")
+ SET(PYTHON_PYTHONPATH "${_tmp_ROOT_DIR}/lib/python${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR}")
+
+ ## 7. Specifics
+ ##
+
+ # NumPy detection
+ EXECUTE_PROCESS(COMMAND ${PYTHON_EXECUTABLE} -c "import numpy ; import sys ; sys.stdout.write(numpy.get_include())" OUTPUT_VARIABLE NUMPY_INCLUDE_DIR ERROR_QUIET )
+ IF(NUMPY_INCLUDE_DIR)
+ SET(NUMPY_FOUND TRUE)
+ ENDIF(NUMPY_INCLUDE_DIR)
+ IF(NUMPY_FOUND)
+ SET(PYTHON_INCLUDE_DIRS ${NUMPY_INCLUDE_DIR} ${PYTHON_INCLUDE_DIRS})
+ SET(PYTHON_DEFINITIONS "${PYTHON_DEFINITIONS} -DWITH_NUMPY")
+ MESSAGE(STATUS "NumPy found : ${NUMPY_INCLUDE_DIR}")
+ ELSE(NUMPY_FOUND)
+ MESSAGE(STATUS "NumPy not found.")
+ ENDIF(NUMPY_FOUND)
+ # SciPy detection
+ EXECUTE_PROCESS(COMMAND ${PYTHON_EXECUTABLE} -c "import scipy ; import sys ; sys.stdout.write(scipy.version.version)" OUTPUT_VARIABLE SCIPY_VERSION ERROR_QUIET )
+ IF(SCIPY_VERSION)
+ SET(SCIPY_FOUND TRUE)
+ ENDIF(SCIPY_VERSION)
+ IF(SCIPY_FOUND)
+ MESSAGE(STATUS "Scipy found : Version ${SCIPY_VERSION}")
+ ENDIF(SCIPY_FOUND)
+ ## None here
+ELSE()
+ MESSAGE(STATUS "Python was only partially (or not at all) found .")
+ENDIF()
+
+IF(SALOMEPYTHON_FOUND)
+ SALOME_ACCUMULATE_HEADERS(PYTHON_INCLUDE_DIR)
+ SALOME_ACCUMULATE_ENVIRONMENT(PATH ${PYTHON_EXECUTABLE})
+ SALOME_ACCUMULATE_ENVIRONMENT(LD_LIBRARY_PATH ${PYTHON_LIBRARIES})
+ SALOME_ACCUMULATE_ENVIRONMENT(PYTHONPATH ${PYTHON_PYTHONPATH})
+ENDIF()
