104 lines
3.1 KiB
CMake
104 lines
3.1 KiB
CMake
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include(CMakeParseArguments)
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# pybind_extension()
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#
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# Parameters:
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# NAME: name of module
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# HDRS: List of public header files for the library
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# SRCS: List of source files for the library
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# DEPS: List of other libraries to be linked in to the binary targets
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# COPTS: List of private compile options
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# DEFINES: List of public defines
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# LINKOPTS: List of link options
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#
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# pybind_extension(
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# NAME
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# awesome
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# HDRS
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# "a.h"
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# SRCS
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# "a.cc"
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# )
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#
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if(NOT DEFINED PYTHON_MODULE_EXTENSION OR NOT DEFINED PYTHON_MODULE_DEBUG_POSTFIX)
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execute_process(
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COMMAND
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"${Python_EXECUTABLE}" "-c"
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"import sys, importlib; s = importlib.import_module('distutils.sysconfig' if sys.version_info < (3, 10) else 'sysconfig'); print(s.get_config_var('EXT_SUFFIX') or s.get_config_var('SO'))"
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OUTPUT_VARIABLE _PYTHON_MODULE_EXT_SUFFIX
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ERROR_VARIABLE _PYTHON_MODULE_EXT_SUFFIX_ERR
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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if(_PYTHON_MODULE_EXT_SUFFIX STREQUAL "")
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message(
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FATAL_ERROR "pybind11 could not query the module file extension, likely the 'distutils'"
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"package is not installed. Full error message:\n${_PYTHON_MODULE_EXT_SUFFIX_ERR}"
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)
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endif()
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# This needs to be available for the pybind11_extension function
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if(NOT DEFINED PYTHON_MODULE_DEBUG_POSTFIX)
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get_filename_component(_PYTHON_MODULE_DEBUG_POSTFIX "${_PYTHON_MODULE_EXT_SUFFIX}" NAME_WE)
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set(PYTHON_MODULE_DEBUG_POSTFIX
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"${_PYTHON_MODULE_DEBUG_POSTFIX}"
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CACHE INTERNAL "")
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endif()
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if(NOT DEFINED PYTHON_MODULE_EXTENSION)
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get_filename_component(_PYTHON_MODULE_EXTENSION "${_PYTHON_MODULE_EXT_SUFFIX}" EXT)
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set(PYTHON_MODULE_EXTENSION
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"${_PYTHON_MODULE_EXTENSION}"
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CACHE INTERNAL "")
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endif()
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endif()
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function(pybind_extension)
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cmake_parse_arguments(
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PY # prefix
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"TESTONLY" # options
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"NAME" # one value args
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"HDRS;SRCS;COPTS;DEFINES;LINKOPTS;LINKDIRS;DEPS" # multi value args
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${ARGN}
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)
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if(PY_TESTONLY AND (NOT BUILD_TESTING))
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return()
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endif()
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add_dependencies(export_module ${PY_NAME})
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add_library(${PY_NAME} SHARED)
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target_sources(${PY_NAME}
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PRIVATE ${PY_SRCS} ${PY_HDRS}
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)
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target_link_libraries(${PY_NAME}
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PUBLIC ${PY_DEPS}
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PRIVATE ${PY_LINKOPTS}
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)
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# search directories for libraries
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target_link_directories(${PY_NAME}
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PUBLIC ${PY_LINKDIRS}
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)
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target_compile_options(${PY_NAME} PRIVATE ${PY_COPTS})
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target_compile_definitions(${PY_NAME} PUBLIC ${PY_DEFINES})
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# -fvisibility=hidden is required to allow multiple modules compiled against
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# different pybind versions to work properly, and for some features (e.g.
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# py::module_local).
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if(NOT DEFINED CMAKE_CXX_VISIBILITY_PRESET)
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set_target_properties(${PY_NAME} PROPERTIES CXX_VISIBILITY_PRESET "hidden")
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endif()
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if(NOT DEFINED CMAKE_CUDA_VISIBILITY_PRESET)
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set_target_properties(${PY_NAME} PROPERTIES CUDA_VISIBILITY_PRESET "hidden")
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endif()
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set_target_properties(
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${PY_NAME}
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PROPERTIES PREFIX ""
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DEBUG_POSTFIX "${PYTHON_MODULE_DEBUG_POSTFIX}"
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SUFFIX "${PYTHON_MODULE_EXTENSION}")
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endfunction()
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