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- Adds the following targets::
- pybind11::pybind11 - link to headers and pybind11
- pybind11::module - Adds module links
- pybind11::embed - Adds embed links
- pybind11::lto - Link time optimizations (manual selection)
- pybind11::thin_lto - Link time optimizations (manual selection)
- pybind11::python_link_helper - Adds link to Python libraries
- pybind11::python2_no_register - Avoid warning/error with Python 2 + C++14/7
- pybind11::windows_extras - MSVC bigobj and mp for building multithreaded
- pybind11::opt_size - avoid optimizations that increase code size
- Adds the following functions::
- pybind11_strip(target) - strip target after building on linux/macOS
- pybind11_find_import(module) - See if a module is installed.
- if(TARGET pybind11::lto)
- return()
- endif()
- get_property(
- is_config
- TARGET pybind11::headers
- PROPERTY IMPORTED)
- if(NOT is_config)
- set(optional_global GLOBAL)
- endif()
- set(pybind11_INCLUDE_DIRS
- "${pybind11_INCLUDE_DIR}"
- CACHE INTERNAL "Include directory for pybind11 (Python not requested)")
- add_library(pybind11::pybind11 IMPORTED INTERFACE ${optional_global})
- set_property(
- TARGET pybind11::pybind11
- APPEND
- PROPERTY INTERFACE_LINK_LIBRARIES pybind11::headers)
- add_library(pybind11::module IMPORTED INTERFACE ${optional_global})
- set_property(
- TARGET pybind11::module
- APPEND
- PROPERTY INTERFACE_LINK_LIBRARIES pybind11::pybind11)
- add_library(pybind11::embed IMPORTED INTERFACE ${optional_global})
- set_property(
- TARGET pybind11::embed
- APPEND
- PROPERTY INTERFACE_LINK_LIBRARIES pybind11::pybind11)
- add_library(pybind11::python2_no_register INTERFACE IMPORTED ${optional_global})
- set(clang_4plus
- "$<AND:$<CXX_COMPILER_ID:Clang>,$<NOT:$<VERSION_LESS:$<CXX_COMPILER_VERSION>,3.9>>>")
- set(no_register "$<OR:${clang_4plus},$<CXX_COMPILER_ID:AppleClang>>")
- if(MSVC AND CMAKE_VERSION VERSION_LESS 3.11)
- set(cxx_no_register "${no_register}")
- else()
- set(cxx_no_register "$<AND:$<COMPILE_LANGUAGE:CXX>,${no_register}>")
- endif()
- set(msvc "$<CXX_COMPILER_ID:MSVC>")
- set_property(
- TARGET pybind11::python2_no_register
- PROPERTY INTERFACE_COMPILE_OPTIONS
- "$<${cxx_no_register}:-Wno-register;-Wno-deprecated-register>" "$<${msvc}:/wd5033>")
- add_library(pybind11::python_link_helper IMPORTED INTERFACE ${optional_global})
- if(CMAKE_VERSION VERSION_LESS 3.13)
-
-
- set_property(
- TARGET pybind11::python_link_helper
- APPEND
- PROPERTY INTERFACE_LINK_LIBRARIES "$<$<PLATFORM_ID:Darwin>:-undefined dynamic_lookup>")
- else()
-
-
-
- set_property(
- TARGET pybind11::python_link_helper
- APPEND
- PROPERTY INTERFACE_LINK_OPTIONS "$<$<PLATFORM_ID:Darwin>:LINKER:-undefined,dynamic_lookup>")
- endif()
- add_library(pybind11::windows_extras IMPORTED INTERFACE ${optional_global})
- if(MSVC)
-
-
- set_property(
- TARGET pybind11::windows_extras
- APPEND
- PROPERTY INTERFACE_COMPILE_OPTIONS /bigobj)
-
- if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
- if(CMAKE_VERSION VERSION_LESS 3.11)
- set_property(
- TARGET pybind11::windows_extras
- APPEND
- PROPERTY INTERFACE_COMPILE_OPTIONS $<$<NOT:$<CONFIG:Debug>>:/MP>)
- else()
-
-
-
-
- set_property(
- TARGET pybind11::windows_extras
- APPEND
- PROPERTY INTERFACE_COMPILE_OPTIONS
- $<$<NOT:$<CONFIG:Debug>>:$<$<COMPILE_LANGUAGE:CXX>:/MP>>)
- endif()
- endif()
- endif()
- add_library(pybind11::opt_size IMPORTED INTERFACE ${optional_global})
- if(MSVC)
- set(PYBIND11_OPT_SIZE /Os)
- else()
- set(PYBIND11_OPT_SIZE -Os)
- endif()
- set_property(
- TARGET pybind11::opt_size
- APPEND
- PROPERTY INTERFACE_COMPILE_OPTIONS $<$<CONFIG:Release>:${PYBIND11_OPT_SIZE}>
- $<$<CONFIG:MinSizeRel>:${PYBIND11_OPT_SIZE}>
- $<$<CONFIG:RelWithDebInfo>:${PYBIND11_OPT_SIZE}>)
- if(PYBIND11_CPP_STANDARD)
- string(REGEX MATCH [[..$]] VAL "${PYBIND11_CPP_STANDARD}")
- if(CMAKE_CXX_STANDARD)
- if(NOT CMAKE_CXX_STANDARD STREQUAL VAL)
- message(WARNING "CMAKE_CXX_STANDARD=${CMAKE_CXX_STANDARD} does not match "
- "PYBIND11_CPP_STANDARD=${PYBIND11_CPP_STANDARD}, "
- "please remove PYBIND11_CPP_STANDARD from your cache")
- endif()
- else()
- set(supported_standards 11 14 17 20)
- if("${VAL}" IN_LIST supported_standards)
- message(WARNING "USE -DCMAKE_CXX_STANDARD=${VAL} instead of PYBIND11_CPP_STANDARD")
- set(CMAKE_CXX_STANDARD
- ${VAL}
- CACHE STRING "From PYBIND11_CPP_STANDARD")
- else()
- message(FATAL_ERROR "PYBIND11_CPP_STANDARD should be replaced with CMAKE_CXX_STANDARD "
- "(last two chars: ${VAL} not understood as a valid CXX std)")
- endif()
- endif()
- endif()
- if(PYBIND11_NOPYTHON)
- set(_pybind11_nopython ON)
- elseif(
- PYBIND11_FINDPYTHON
- OR Python_FOUND
- OR Python2_FOUND
- OR Python3_FOUND)
-
- include("${CMAKE_CURRENT_LIST_DIR}/pybind11NewTools.cmake")
- else()
-
- include("${CMAKE_CURRENT_LIST_DIR}/pybind11Tools.cmake")
- endif()
- if(NOT _pybind11_nopython)
-
-
-
-
-
- function(pybind11_find_import PYPI_NAME)
-
- string(REPLACE "-" "_" NORM_PYPI_NAME "${PYPI_NAME}")
-
- if(${NORM_PYPI_NAME}_FOUND)
- return()
- endif()
- set(options "REQUIRED;QUIET")
- set(oneValueArgs "VERSION")
- cmake_parse_arguments(ARG "${options}" "${oneValueArgs}" "" ${ARGN})
- if(ARG_REQUIRED)
- set(status_level FATAL_ERROR)
- else()
- set(status_level WARNING)
- endif()
- execute_process(
- COMMAND
- ${${_Python}_EXECUTABLE} -c
- "from pkg_resources import get_distribution; print(get_distribution('${PYPI_NAME}').version)"
- RESULT_VARIABLE RESULT_PRESENT
- OUTPUT_VARIABLE PKG_VERSION
- ERROR_QUIET)
- string(STRIP "${PKG_VERSION}" PKG_VERSION)
-
- if(RESULT_PRESENT)
- set(${NORM_PYPI_NAME}_FOUND
- ${NORM_PYPI_NAME}-NOTFOUND
- CACHE INTERNAL "")
-
- message(
- ${status_level}
- "Missing: ${PYPI_NAME} ${ARG_VERSION}\nTry: ${${_Python}_EXECUTABLE} -m pip install ${PYPI_NAME}"
- )
- else()
- if(ARG_VERSION AND PKG_VERSION VERSION_LESS ARG_VERSION)
- message(
- ${status_level}
- "Version incorrect: ${PYPI_NAME} ${PKG_VERSION} found, ${ARG_VERSION} required - try upgrading"
- )
- else()
- set(${NORM_PYPI_NAME}_FOUND
- YES
- CACHE INTERNAL "")
- set(${NORM_PYPI_NAME}_VERSION
- ${PKG_VERSION}
- CACHE INTERNAL "")
- endif()
- if(NOT ARG_QUIET)
- message(STATUS "Found ${PYPI_NAME} ${PKG_VERSION}")
- endif()
- endif()
- if(NOT ARG_VERSION OR (NOT PKG_VERSION VERSION_LESS ARG_VERSION))
-
- endif()
- endfunction()
- endif()
- include(CheckCXXCompilerFlag)
- function(_pybind11_return_if_cxx_and_linker_flags_work result cxxflags linkerflags cxxflags_out
- linkerflags_out)
- set(CMAKE_REQUIRED_LIBRARIES ${linkerflags})
- check_cxx_compiler_flag("${cxxflags}" ${result})
- if(${result})
- set(${cxxflags_out}
- "${cxxflags}"
- PARENT_SCOPE)
- set(${linkerflags_out}
- "${linkerflags}"
- PARENT_SCOPE)
- endif()
- endfunction()
- function(_pybind11_generate_lto target prefer_thin_lto)
- if(MINGW)
- message(STATUS "${target} disabled (problems with undefined symbols for MinGW for now)")
- return()
- endif()
- if(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
- set(cxx_append "")
- set(linker_append "")
- if(CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND NOT APPLE)
-
- set(linker_append ";$<$<CONFIG:MinSizeRel>:-O3>")
- elseif(CMAKE_CXX_COMPILER_ID MATCHES "GNU" AND NOT MINGW)
- set(cxx_append ";-fno-fat-lto-objects")
- endif()
- if(CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND prefer_thin_lto)
- _pybind11_return_if_cxx_and_linker_flags_work(
- HAS_FLTO_THIN "-flto=thin${cxx_append}" "-flto=thin${linker_append}"
- PYBIND11_LTO_CXX_FLAGS PYBIND11_LTO_LINKER_FLAGS)
- endif()
- if(NOT HAS_FLTO_THIN)
- _pybind11_return_if_cxx_and_linker_flags_work(
- HAS_FLTO "-flto${cxx_append}" "-flto${linker_append}" PYBIND11_LTO_CXX_FLAGS
- PYBIND11_LTO_LINKER_FLAGS)
- endif()
- elseif(CMAKE_CXX_COMPILER_ID MATCHES "Intel")
-
- _pybind11_return_if_cxx_and_linker_flags_work(HAS_INTEL_IPO "-ipo" "-ipo"
- PYBIND11_LTO_CXX_FLAGS PYBIND11_LTO_LINKER_FLAGS)
- elseif(MSVC)
-
-
-
- _pybind11_return_if_cxx_and_linker_flags_work(HAS_MSVC_GL_LTCG "/GL" "-LTCG"
- PYBIND11_LTO_CXX_FLAGS PYBIND11_LTO_LINKER_FLAGS)
- endif()
-
- if(PYBIND11_LTO_CXX_FLAGS)
-
- set(is_debug "$<OR:$<CONFIG:Debug>,$<CONFIG:RelWithDebInfo>>")
- set(not_debug "$<NOT:${is_debug}>")
- set(cxx_lang "$<COMPILE_LANGUAGE:CXX>")
- if(MSVC AND CMAKE_VERSION VERSION_LESS 3.11)
- set(genex "${not_debug}")
- else()
- set(genex "$<AND:${not_debug},${cxx_lang}>")
- endif()
- set_property(
- TARGET ${target}
- APPEND
- PROPERTY INTERFACE_COMPILE_OPTIONS "$<${genex}:${PYBIND11_LTO_CXX_FLAGS}>")
- if(CMAKE_PROJECT_NAME STREQUAL "pybind11")
- message(STATUS "${target} enabled")
- endif()
- else()
- if(CMAKE_PROJECT_NAME STREQUAL "pybind11")
- message(STATUS "${target} disabled (not supported by the compiler and/or linker)")
- endif()
- endif()
- if(PYBIND11_LTO_LINKER_FLAGS)
- if(CMAKE_VERSION VERSION_LESS 3.11)
- set_property(
- TARGET ${target}
- APPEND
- PROPERTY INTERFACE_LINK_LIBRARIES "$<${not_debug}:${PYBIND11_LTO_LINKER_FLAGS}>")
- else()
- set_property(
- TARGET ${target}
- APPEND
- PROPERTY INTERFACE_LINK_OPTIONS "$<${not_debug}:${PYBIND11_LTO_LINKER_FLAGS}>")
- endif()
- endif()
- endfunction()
- add_library(pybind11::lto IMPORTED INTERFACE ${optional_global})
- _pybind11_generate_lto(pybind11::lto FALSE)
- add_library(pybind11::thin_lto IMPORTED INTERFACE ${optional_global})
- _pybind11_generate_lto(pybind11::thin_lto TRUE)
- function(pybind11_strip target_name)
-
- if(CMAKE_STRIP)
- if(APPLE)
- set(x_opt -x)
- endif()
- add_custom_command(
- TARGET ${target_name}
- POST_BUILD
- COMMAND ${CMAKE_STRIP} ${x_opt} $<TARGET_FILE:${target_name}>)
- endif()
- endfunction()
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