1# Copyright (c) 2015, Intel Corporation 2# All rights reserved. 3# 4# Redistribution and use in source and binary forms, with or without modification, 5# are permitted provided that the following conditions are met: 6# 7# 1. Redistributions of source code must retain the above copyright notice, this 8# list of conditions and the following disclaimer. 9# 10# 2. Redistributions in binary form must reproduce the above copyright notice, 11# this list of conditions and the following disclaimer in the documentation and/or 12# other materials provided with the distribution. 13# 14# 3. Neither the name of the copyright holder nor the names of its contributors 15# may be used to endorse or promote products derived from this software without 16# specific prior written permission. 17# 18# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 19# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 20# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 21# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR 22# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 23# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 25# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 27# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 29find_package(SWIG) 30# Hide these variables from CMake GUIs and `cmake -L` 31set_property(CACHE 32 SWIG_DIR SWIG_EXECUTABLE SWIG_VERSION 33 PROPERTY ADVANCED TRUE) 34if(NOT SWIG_FOUND) 35 message(FATAL_ERROR 36 "Swig is needed to compile the Python bindings but was not found." 37 "Please either install swig2.0 or disable Python bindings by setting" 38 "PYTHON_BINDINGS to OFF (e.g. '-DPYTHON_BINDINGS=OFF' in the" 39 "invocation of CMake.). See the 'Compilation' section of README.md" 40 "for more details.") 41endif() 42 43include(${SWIG_USE_FILE}) 44 45# Force usage of Python 2.7.x ... 46find_package(PythonInterp 2.7 REQUIRED) 47 48# ... and force the libs to be at the same version as the interpreter 49find_package(PythonLibs ${PYTHON_VERSION_STRING} EXACT REQUIRED) 50include_directories(${PYTHON_INCLUDE_DIRS}) 51 52set_property(SOURCE pfw.i PROPERTY CPLUSPLUS ON) 53set_property(SOURCE pfw.i PROPERTY SWIG_FLAGS "-Wall") 54if(FATAL_WARNINGS) 55 set_property(SOURCE pfw.i APPEND PROPERTY SWIG_FLAGS "-Werror") 56endif() 57 58swig_add_module(PyPfw python pfw.i) 59swig_link_libraries(PyPfw parameter ${PYTHON_LIBRARIES}) 60# For convenience, the global library output directory 61# (CMAKE_LIBRARY_OUTPUT_DIRECTORY) is set to ${PROJECT_BINARY_DIR}/lib, so that 62# all libs are generated in the same folder. This help writing test targets 63# (add_test) that do not need "make install" to be run. 64# However, putting _PyPfw.so in that folder defeats the purpose described 65# above because when running tests using the python bindings, the PYTHONPATH 66# needs to contain both _PyPfw.so and PyPfw.py. Without the line below, 67# _PyPfw.so would be put in ${PROJECT_BINARY_DIR}/lib while PyPfw.py is put in 68# ${CMAKE_CURRENT_BINARY_DIR}. 69set_property(TARGET _PyPfw PROPERTY LIBRARY_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}) 70 71# '-DSWIG_PYTHON_SILENT_MEMLEAK' is needed because the "memleak" warning 72# pollutes the standard output. At the time of writing, the only warning is 73# spurious anyway, as it relates to "ILogger *" which is an abstract 74# class/interface class and as such cannot be destroyed. 75# -Wno-error is set to prevent compilation failure in case of the code 76# generated by swig generates warnings. We don't apply the FATAL_WARNING policy 77# here, since we consider this generated code as external. 78target_compile_definitions(_PyPfw PRIVATE SWIG_PYTHON_SILENT_MEMLEAK) 79set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-error") 80 81 82# Find the python modules install path. 83# plat_specific is needed because we are installing a shared-library python 84# module and not only a pure python module. 85# prefix='' makes get_python_lib return a relative path. 86execute_process(COMMAND 87 ${PYTHON_EXECUTABLE} -c 88 "from distutils import sysconfig;\\ 89 print(sysconfig.get_python_lib(plat_specific=True, prefix=''))" 90 OUTPUT_VARIABLE PYTHON_MODULE_PATH OUTPUT_STRIP_TRAILING_WHITESPACE) 91 92install(TARGETS _PyPfw LIBRARY DESTINATION ${PYTHON_MODULE_PATH}) 93 94# install the generated Python file as well 95install(FILES ${CMAKE_CURRENT_BINARY_DIR}/PyPfw.py DESTINATION ${PYTHON_MODULE_PATH}) 96