mirror of
https://github.com/pybind/pybind11.git
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a3fec901b8
Fixes #567. If pybind's CMakeLists gets loaded via an include_directory from another CMakeLists with a higher minimum version (e.g. 3.0), the project() command without a version produces a CMP0048 warning. This commit explicitly requests the new behaviour if the policy exists, as it won't cause problems (we set VERSION later).
137 lines
5.2 KiB
CMake
137 lines
5.2 KiB
CMake
# CMakeLists.txt -- Build system for the pybind11 modules
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#
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# Copyright (c) 2015 Wenzel Jakob <wenzel@inf.ethz.ch>
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#
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# All rights reserved. Use of this source code is governed by a
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# BSD-style license that can be found in the LICENSE file.
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cmake_minimum_required(VERSION 2.8.12)
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if (POLICY CMP0048)
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# cmake warns if loaded from a min-3.0-required parent dir, so silence the warning:
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cmake_policy(SET CMP0048 NEW)
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endif()
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project(pybind11)
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# Check if pybind11 is being used directly or via add_subdirectory
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set(PYBIND11_MASTER_PROJECT OFF)
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if (CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
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set(PYBIND11_MASTER_PROJECT ON)
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endif()
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option(PYBIND11_INSTALL "Install pybind11 header files?" ${PYBIND11_MASTER_PROJECT})
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option(PYBIND11_TEST "Build pybind11 test suite?" ${PYBIND11_MASTER_PROJECT})
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option(PYBIND11_WERROR "Report all warnings as errors" OFF)
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list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/tools")
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include(pybind11Tools)
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# Cache variables so pybind11_add_module can be used in parent projects
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set(PYBIND11_INCLUDE_DIR "${CMAKE_CURRENT_LIST_DIR}/include" CACHE INTERNAL "")
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set(PYTHON_INCLUDE_DIRS ${PYTHON_INCLUDE_DIRS} CACHE INTERNAL "")
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set(PYTHON_LIBRARIES ${PYTHON_LIBRARIES} CACHE INTERNAL "")
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set(PYTHON_MODULE_PREFIX ${PYTHON_MODULE_PREFIX} CACHE INTERNAL "")
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set(PYTHON_MODULE_EXTENSION ${PYTHON_MODULE_EXTENSION} CACHE INTERNAL "")
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# Compile with compiler warnings turned on
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function(pybind11_enable_warnings target_name)
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if(MSVC)
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target_compile_options(${target_name} PRIVATE /W4)
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else()
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target_compile_options(${target_name} PRIVATE -Wall -Wextra -Wconversion)
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endif()
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if(PYBIND11_WERROR)
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if(MSVC)
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target_compile_options(${target_name} PRIVATE /WX)
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else()
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target_compile_options(${target_name} PRIVATE -Werror)
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endif()
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endif()
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endfunction()
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set(PYBIND11_HEADERS
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include/pybind11/attr.h
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include/pybind11/cast.h
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include/pybind11/chrono.h
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include/pybind11/common.h
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include/pybind11/complex.h
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include/pybind11/descr.h
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include/pybind11/options.h
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include/pybind11/eigen.h
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include/pybind11/eval.h
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include/pybind11/functional.h
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include/pybind11/numpy.h
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include/pybind11/operators.h
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include/pybind11/pybind11.h
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include/pybind11/pytypes.h
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include/pybind11/stl.h
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include/pybind11/stl_bind.h
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include/pybind11/typeid.h
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)
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string(REPLACE "include/" "${CMAKE_CURRENT_SOURCE_DIR}/include/"
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PYBIND11_HEADERS "${PYBIND11_HEADERS}")
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if (PYBIND11_TEST)
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add_subdirectory(tests)
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endif()
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include(GNUInstallDirs)
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include(CMakePackageConfigHelpers)
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# extract project version from source
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file(STRINGS "${PYBIND11_INCLUDE_DIR}/pybind11/common.h" pybind11_version_defines
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REGEX "#define PYBIND11_VERSION_(MAJOR|MINOR|PATCH) ")
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foreach(ver ${pybind11_version_defines})
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if (ver MATCHES "#define PYBIND11_VERSION_(MAJOR|MINOR|PATCH) +([^ ]+)$")
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set(PYBIND11_VERSION_${CMAKE_MATCH_1} "${CMAKE_MATCH_2}" CACHE INTERNAL "")
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endif()
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endforeach()
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set(${PROJECT_NAME}_VERSION ${PYBIND11_VERSION_MAJOR}.${PYBIND11_VERSION_MINOR}.${PYBIND11_VERSION_PATCH})
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message(STATUS "pybind11 v${${PROJECT_NAME}_VERSION}")
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if(NOT (CMAKE_VERSION VERSION_LESS 3.0)) # CMake >= 3.0
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# Build an interface library target:
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add_library(module INTERFACE)
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target_include_directories(module INTERFACE $<BUILD_INTERFACE:${PYBIND11_INCLUDE_DIR}>
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$<BUILD_INTERFACE:${PYTHON_INCLUDE_DIRS}>
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$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>)
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if(WIN32 OR CYGWIN)
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target_link_libraries(module INTERFACE $<BUILD_INTERFACE:${PYTHON_LIBRARIES}>)
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elseif(APPLE)
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target_link_libraries(module INTERFACE "-undefined dynamic_lookup")
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endif()
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target_compile_options(module INTERFACE $<BUILD_INTERFACE:${PYBIND11_CPP_STANDARD}>)
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add_library(pybind11::module ALIAS module) # to match exported target
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endif()
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if (PYBIND11_INSTALL)
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install(FILES ${PYBIND11_HEADERS}
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DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/pybind11)
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# GNUInstallDirs "DATADIR" wrong here; CMake search path wants "share".
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set(PYBIND11_CMAKECONFIG_INSTALL_DIR "share/cmake/${PROJECT_NAME}" CACHE STRING "install path for pybind11Config.cmake")
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configure_package_config_file(tools/${PROJECT_NAME}Config.cmake.in
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"${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake"
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INSTALL_DESTINATION ${PYBIND11_CMAKECONFIG_INSTALL_DIR})
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write_basic_package_version_file(${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake
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VERSION ${${PROJECT_NAME}_VERSION}
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COMPATIBILITY AnyNewerVersion)
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install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake
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${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake
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tools/FindPythonLibsNew.cmake
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tools/pybind11Tools.cmake
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DESTINATION ${PYBIND11_CMAKECONFIG_INSTALL_DIR})
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if(NOT (CMAKE_VERSION VERSION_LESS 3.0))
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install(TARGETS module
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EXPORT "${PROJECT_NAME}Targets")
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install(EXPORT "${PROJECT_NAME}Targets"
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NAMESPACE "${PROJECT_NAME}::"
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DESTINATION ${PYBIND11_CMAKECONFIG_INSTALL_DIR})
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endif()
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endif()
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