From c80de3a96b4d91b1202d9ebebab11f6ff0af2045 Mon Sep 17 00:00:00 2001 From: Dimitri Staessens Date: Tue, 6 Feb 2018 18:17:57 +0100 Subject: build: Add option to disable SWIG support This allows disabling swig support on systems where swig is installed but it fails building (e.g. some versions of Raspbian). Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders --- include/ouroboros/wrap/CMakeLists.txt | 103 ++++++++++++++++++---------------- 1 file changed, 54 insertions(+), 49 deletions(-) (limited to 'include') diff --git a/include/ouroboros/wrap/CMakeLists.txt b/include/ouroboros/wrap/CMakeLists.txt index 43ebd242..18e695b9 100644 --- a/include/ouroboros/wrap/CMakeLists.txt +++ b/include/ouroboros/wrap/CMakeLists.txt @@ -5,61 +5,66 @@ find_package(SWIG QUIET) if (NOT SWIG_FOUND) message(STATUS "Install SWIG to enable bindings for other languages") else () - message(STATUS "SWIG support enabled") - include(${SWIG_USE_FILE}) - include_directories(${CMAKE_CURRENT_SOURCE_DIR}) - set(CMAKE_SWIG_FLAGS "") + set(DISABLE_SWIG FALSE CACHE BOOL "Disable SWIG support") + if (NOT DISABLE_SWIG) + message(STATUS "SWIG support enabled") + include(${SWIG_USE_FILE}) + include_directories(${CMAKE_CURRENT_SOURCE_DIR}) + set(CMAKE_SWIG_FLAGS "") - find_package(PythonInterp QUIET) - find_package(PythonLibs QUIET) - if (NOT PYTHONLIBS_FOUND OR NOT PYTHONINTERP_FOUND) - message(STATUS "Python not found: Python bindings will not be built") - else () - message(STATUS "Python found: Python bindings will be built") - include_directories(${PYTHON_INCLUDE_PATH}) + find_package(PythonInterp QUIET) + find_package(PythonLibs QUIET) + if (NOT PYTHONLIBS_FOUND OR NOT PYTHONINTERP_FOUND) + message(STATUS "Python not found: Python bindings will not be built") + else () + message(STATUS "Python found: Python bindings will be built") + include_directories(${PYTHON_INCLUDE_PATH}) - # Python assumes C99 since Python 3.6 - test_and_set_c_compiler_flag_global(-std=c99) - # SWIG generates code for varargs with an unused parameter - test_and_set_c_compiler_flag_global(-Wno-unused-parameter) + # Python assumes C99 since Python 3.6 + test_and_set_c_compiler_flag_global(-std=c99) + # SWIG generates code for varargs with an unused parameter + test_and_set_c_compiler_flag_global(-Wno-unused-parameter) - # CMake > 3.8 deprecates swig_add_module - if (${CMAKE_VERSION} VERSION_LESS 3.8.0) - swig_add_module(ouroboros python ouroboros.i) - else () - swig_add_library(ouroboros - LANGUAGE python - SOURCES ouroboros.i - TYPE MODULE) - endif() + # CMake > 3.8 deprecates swig_add_module + if (${CMAKE_VERSION} VERSION_LESS 3.8.0) + swig_add_module(ouroboros python ouroboros.i) + else () + swig_add_library(ouroboros + LANGUAGE python + SOURCES ouroboros.i + TYPE MODULE) + endif() - swig_link_libraries(ouroboros ${PYTHON_LIBRARIES} ouroboros-common - ouroboros-dev ouroboros-irm) + swig_link_libraries(ouroboros ${PYTHON_LIBRARIES} ouroboros-common + ouroboros-dev ouroboros-irm) - # Installation directives - if (CMAKE_INSTALL_PREFIX STREQUAL "") - execute_process( - COMMAND ${PYTHON_EXECUTABLE} -c - "from distutils import sysconfig; print(sysconfig.get_python_lib())" - OUTPUT_VARIABLE PYTHON_MODULE_PATH - OUTPUT_STRIP_TRAILING_WHITESPACE) - else () - execute_process( - COMMAND ${PYTHON_EXECUTABLE} -c - "from distutils import sysconfig; print(sysconfig.get_python_lib(plat_specific=True, prefix='${CMAKE_INSTALL_PREFIX}'))" - OUTPUT_VARIABLE _ABS_PYTHON_MODULE_PATH - OUTPUT_STRIP_TRAILING_WHITESPACE) - get_filename_component(_ABS_PYTHON_MODULE_PATH - ${_ABS_PYTHON_MODULE_PATH} ABSOLUTE) - file(RELATIVE_PATH PYTHON_MODULE_PATH - ${CMAKE_INSTALL_PREFIX} ${_ABS_PYTHON_MODULE_PATH}) - endif () + # Installation directives + if (CMAKE_INSTALL_PREFIX STREQUAL "") + execute_process( + COMMAND ${PYTHON_EXECUTABLE} -c + "from distutils import sysconfig; print(sysconfig.get_python_lib())" + OUTPUT_VARIABLE PYTHON_MODULE_PATH + OUTPUT_STRIP_TRAILING_WHITESPACE) + else () + execute_process( + COMMAND ${PYTHON_EXECUTABLE} -c + "from distutils import sysconfig; print(sysconfig.get_python_lib(plat_specific=True, prefix='${CMAKE_INSTALL_PREFIX}'))" + OUTPUT_VARIABLE _ABS_PYTHON_MODULE_PATH + OUTPUT_STRIP_TRAILING_WHITESPACE) + get_filename_component(_ABS_PYTHON_MODULE_PATH + ${_ABS_PYTHON_MODULE_PATH} ABSOLUTE) + file(RELATIVE_PATH PYTHON_MODULE_PATH + ${CMAKE_INSTALL_PREFIX} ${_ABS_PYTHON_MODULE_PATH}) + endif () - install(FILES - ${CMAKE_CURRENT_BINARY_DIR}/${SWIG_MODULE_ouroboros_REAL_NAME}.so - DESTINATION ${PYTHON_MODULE_PATH}) - install(FILES ${CMAKE_CURRENT_BINARY_DIR}/ouroboros.py - DESTINATION ${PYTHON_MODULE_PATH}) + install(FILES + ${CMAKE_CURRENT_BINARY_DIR}/${SWIG_MODULE_ouroboros_REAL_NAME}.so + DESTINATION ${PYTHON_MODULE_PATH}) + install(FILES ${CMAKE_CURRENT_BINARY_DIR}/ouroboros.py + DESTINATION ${PYTHON_MODULE_PATH}) + endif () + else () + message(STATUS "SWIG support disabled by user") endif () endif () -- cgit v1.2.3