pybind11Tools.cmake (12037:d28054ac6ec9) | pybind11Tools.cmake (12391:ceeca8b41e4b) |
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1# tools/pybind11Tools.cmake -- Build system for the pybind11 modules 2# 3# Copyright (c) 2015 Wenzel Jakob <wenzel@inf.ethz.ch> 4# 5# All rights reserved. Use of this source code is governed by a 6# BSD-style license that can be found in the LICENSE file. 7 8cmake_minimum_required(VERSION 2.8.12) --- 4 unchanged lines hidden (view full) --- 13endif() 14 15set(Python_ADDITIONAL_VERSIONS 3.7 3.6 3.5 3.4) 16find_package(PythonLibsNew ${PYBIND11_PYTHON_VERSION} REQUIRED) 17 18include(CheckCXXCompilerFlag) 19include(CMakeParseArguments) 20 | 1# tools/pybind11Tools.cmake -- Build system for the pybind11 modules 2# 3# Copyright (c) 2015 Wenzel Jakob <wenzel@inf.ethz.ch> 4# 5# All rights reserved. Use of this source code is governed by a 6# BSD-style license that can be found in the LICENSE file. 7 8cmake_minimum_required(VERSION 2.8.12) --- 4 unchanged lines hidden (view full) --- 13endif() 14 15set(Python_ADDITIONAL_VERSIONS 3.7 3.6 3.5 3.4) 16find_package(PythonLibsNew ${PYBIND11_PYTHON_VERSION} REQUIRED) 17 18include(CheckCXXCompilerFlag) 19include(CMakeParseArguments) 20 |
21function(select_cxx_standard) 22 if(NOT MSVC AND NOT PYBIND11_CPP_STANDARD) | 21if(NOT PYBIND11_CPP_STANDARD AND NOT CMAKE_CXX_STANDARD) 22 if(NOT MSVC) |
23 check_cxx_compiler_flag("-std=c++14" HAS_CPP14_FLAG) | 23 check_cxx_compiler_flag("-std=c++14" HAS_CPP14_FLAG) |
24 check_cxx_compiler_flag("-std=c++11" HAS_CPP11_FLAG) | |
25 26 if (HAS_CPP14_FLAG) 27 set(PYBIND11_CPP_STANDARD -std=c++14) | 24 25 if (HAS_CPP14_FLAG) 26 set(PYBIND11_CPP_STANDARD -std=c++14) |
28 elseif (HAS_CPP11_FLAG) 29 set(PYBIND11_CPP_STANDARD -std=c++11) | |
30 else() | 27 else() |
31 message(FATAL_ERROR "Unsupported compiler -- pybind11 requires C++11 support!") | 28 check_cxx_compiler_flag("-std=c++11" HAS_CPP11_FLAG) 29 if (HAS_CPP11_FLAG) 30 set(PYBIND11_CPP_STANDARD -std=c++11) 31 else() 32 message(FATAL_ERROR "Unsupported compiler -- pybind11 requires C++11 support!") 33 endif() |
32 endif() | 34 endif() |
33 34 set(PYBIND11_CPP_STANDARD ${PYBIND11_CPP_STANDARD} CACHE STRING 35 "C++ standard flag, e.g. -std=c++11 or -std=c++14. Defaults to latest available." FORCE) | 35 elseif(MSVC) 36 set(PYBIND11_CPP_STANDARD /std:c++14) |
36 endif() | 37 endif() |
37endfunction() | |
38 | 38 |
39 set(PYBIND11_CPP_STANDARD ${PYBIND11_CPP_STANDARD} CACHE STRING 40 "C++ standard flag, e.g. -std=c++11, -std=c++14, /std:c++14. Defaults to C++14 mode." FORCE) 41endif() 42 |
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39# Checks whether the given CXX/linker flags can compile and link a cxx file. cxxflags and 40# linkerflags are lists of flags to use. The result variable is a unique variable name for each set 41# of flags: the compilation result will be cached base on the result variable. If the flags work, 42# sets them in cxxflags_out/linkerflags_out internal cache variables (in addition to ${result}). 43function(_pybind11_return_if_cxx_and_linker_flags_work result cxxflags linkerflags cxxflags_out linkerflags_out) 44 set(CMAKE_REQUIRED_LIBRARIES ${linkerflags}) 45 check_cxx_compiler_flag("${cxxflags}" ${result}) 46 if (${result}) --- 83 unchanged lines hidden (view full) --- 130 PRIVATE ${PYBIND11_INCLUDE_DIR} # from project CMakeLists.txt 131 PRIVATE ${pybind11_INCLUDE_DIR} # from pybind11Config 132 PRIVATE ${PYTHON_INCLUDE_DIRS}) 133 134 # The prefix and extension are provided by FindPythonLibsNew.cmake 135 set_target_properties(${target_name} PROPERTIES PREFIX "${PYTHON_MODULE_PREFIX}") 136 set_target_properties(${target_name} PROPERTIES SUFFIX "${PYTHON_MODULE_EXTENSION}") 137 | 43# Checks whether the given CXX/linker flags can compile and link a cxx file. cxxflags and 44# linkerflags are lists of flags to use. The result variable is a unique variable name for each set 45# of flags: the compilation result will be cached base on the result variable. If the flags work, 46# sets them in cxxflags_out/linkerflags_out internal cache variables (in addition to ${result}). 47function(_pybind11_return_if_cxx_and_linker_flags_work result cxxflags linkerflags cxxflags_out linkerflags_out) 48 set(CMAKE_REQUIRED_LIBRARIES ${linkerflags}) 49 check_cxx_compiler_flag("${cxxflags}" ${result}) 50 if (${result}) --- 83 unchanged lines hidden (view full) --- 134 PRIVATE ${PYBIND11_INCLUDE_DIR} # from project CMakeLists.txt 135 PRIVATE ${pybind11_INCLUDE_DIR} # from pybind11Config 136 PRIVATE ${PYTHON_INCLUDE_DIRS}) 137 138 # The prefix and extension are provided by FindPythonLibsNew.cmake 139 set_target_properties(${target_name} PROPERTIES PREFIX "${PYTHON_MODULE_PREFIX}") 140 set_target_properties(${target_name} PROPERTIES SUFFIX "${PYTHON_MODULE_EXTENSION}") 141 |
142 # -fvisibility=hidden is required to allow multiple modules compiled against 143 # different pybind versions to work properly, and for some features (e.g. 144 # py::module_local). We force it on everything inside the `pybind11` 145 # namespace; also turning it on for a pybind module compilation here avoids 146 # potential warnings or issues from having mixed hidden/non-hidden types. 147 set_target_properties(${target_name} PROPERTIES CXX_VISIBILITY_PRESET "hidden") 148 |
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138 if(WIN32 OR CYGWIN) 139 # Link against the Python shared library on Windows 140 target_link_libraries(${target_name} PRIVATE ${PYTHON_LIBRARIES}) 141 elseif(APPLE) 142 # It's quite common to have multiple copies of the same Python version 143 # installed on one's system. E.g.: one copy from the OS and another copy 144 # that's statically linked into an application like Blender or Maya. 145 # If we link our plugin library against the OS Python here and import it --- 10 unchanged lines hidden (view full) --- 156 target_link_libraries(${target_name} PRIVATE "-undefined dynamic_lookup") 157 158 if(ARG_SHARED) 159 # Suppress CMake >= 3.0 warning for shared libraries 160 set_target_properties(${target_name} PROPERTIES MACOSX_RPATH ON) 161 endif() 162 endif() 163 | 149 if(WIN32 OR CYGWIN) 150 # Link against the Python shared library on Windows 151 target_link_libraries(${target_name} PRIVATE ${PYTHON_LIBRARIES}) 152 elseif(APPLE) 153 # It's quite common to have multiple copies of the same Python version 154 # installed on one's system. E.g.: one copy from the OS and another copy 155 # that's statically linked into an application like Blender or Maya. 156 # If we link our plugin library against the OS Python here and import it --- 10 unchanged lines hidden (view full) --- 167 target_link_libraries(${target_name} PRIVATE "-undefined dynamic_lookup") 168 169 if(ARG_SHARED) 170 # Suppress CMake >= 3.0 warning for shared libraries 171 set_target_properties(${target_name} PROPERTIES MACOSX_RPATH ON) 172 endif() 173 endif() 174 |
164 select_cxx_standard() 165 if(NOT MSVC) 166 # Make sure C++11/14 are enabled 167 target_compile_options(${target_name} PUBLIC ${PYBIND11_CPP_STANDARD}) 168 endif() | 175 # Make sure C++11/14 are enabled 176 target_compile_options(${target_name} PUBLIC ${PYBIND11_CPP_STANDARD}) |
169 170 if(ARG_NO_EXTRAS) 171 return() 172 endif() 173 174 _pybind11_add_lto_flags(${target_name} ${ARG_THIN_LTO}) 175 176 if (NOT MSVC AND NOT ${CMAKE_BUILD_TYPE} MATCHES Debug) | 177 178 if(ARG_NO_EXTRAS) 179 return() 180 endif() 181 182 _pybind11_add_lto_flags(${target_name} ${ARG_THIN_LTO}) 183 184 if (NOT MSVC AND NOT ${CMAKE_BUILD_TYPE} MATCHES Debug) |
177 # Set the default symbol visibility to hidden (very important to obtain small binaries) 178 target_compile_options(${target_name} PRIVATE "-fvisibility=hidden") 179 | |
180 # Strip unnecessary sections of the binary on Linux/Mac OS 181 if(CMAKE_STRIP) 182 if(APPLE) 183 add_custom_command(TARGET ${target_name} POST_BUILD 184 COMMAND ${CMAKE_STRIP} -x $<TARGET_FILE:${target_name}>) 185 else() 186 add_custom_command(TARGET ${target_name} POST_BUILD 187 COMMAND ${CMAKE_STRIP} $<TARGET_FILE:${target_name}>) 188 endif() 189 endif() 190 endif() 191 192 if(MSVC) 193 # /MP enables multithreaded builds (relevant when there are many files), /bigobj is 194 # needed for bigger binding projects due to the limit to 64k addressable sections 195 target_compile_options(${target_name} PRIVATE /MP /bigobj) 196 endif() 197endfunction() | 185 # Strip unnecessary sections of the binary on Linux/Mac OS 186 if(CMAKE_STRIP) 187 if(APPLE) 188 add_custom_command(TARGET ${target_name} POST_BUILD 189 COMMAND ${CMAKE_STRIP} -x $<TARGET_FILE:${target_name}>) 190 else() 191 add_custom_command(TARGET ${target_name} POST_BUILD 192 COMMAND ${CMAKE_STRIP} $<TARGET_FILE:${target_name}>) 193 endif() 194 endif() 195 endif() 196 197 if(MSVC) 198 # /MP enables multithreaded builds (relevant when there are many files), /bigobj is 199 # needed for bigger binding projects due to the limit to 64k addressable sections 200 target_compile_options(${target_name} PRIVATE /MP /bigobj) 201 endif() 202endfunction() |