1# CMakeLists.txt -- 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)
9
10project(pybind11)
11
12# Check if pybind11 is being used directly or via add_subdirectory
13set(PYBIND11_MASTER_PROJECT OFF)
14if (CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
15 set(PYBIND11_MASTER_PROJECT ON)
16endif()
17
18option(PYBIND11_INSTALL "Install pybind11 header files?" ${PYBIND11_MASTER_PROJECT})
19option(PYBIND11_TEST "Build pybind11 test suite?" ${PYBIND11_MASTER_PROJECT})
20option(PYBIND11_WERROR "Report all warnings as errors" OFF)
21
22list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/tools")
23
24include(pybind11Tools)
25
26# Cache variables so pybind11_add_module can be used in parent projects
27set(PYBIND11_INCLUDE_DIR "${CMAKE_CURRENT_LIST_DIR}/include" CACHE INTERNAL "")
28set(PYTHON_INCLUDE_DIRS ${PYTHON_INCLUDE_DIRS} CACHE INTERNAL "")
29set(PYTHON_LIBRARIES ${PYTHON_LIBRARIES} CACHE INTERNAL "")
30set(PYTHON_MODULE_PREFIX ${PYTHON_MODULE_PREFIX} CACHE INTERNAL "")
31set(PYTHON_MODULE_EXTENSION ${PYTHON_MODULE_EXTENSION} CACHE INTERNAL "")
32
33# Compile with compiler warnings turned on
34function(pybind11_enable_warnings target_name)
35 if(MSVC)
36 target_compile_options(${target_name} PRIVATE /W4)
37 else()
38 target_compile_options(${target_name} PRIVATE -Wall -Wextra -Wconversion)
39 endif()
40
41 if(PYBIND11_WERROR)
42 if(MSVC)
43 target_compile_options(${target_name} PRIVATE /WX)
44 else()
45 target_compile_options(${target_name} PRIVATE -Werror)
46 endif()
47 endif()
48endfunction()
49
50set(PYBIND11_HEADERS
51 include/pybind11/attr.h
52 include/pybind11/cast.h
53 include/pybind11/chrono.h
54 include/pybind11/common.h
55 include/pybind11/complex.h
56 include/pybind11/descr.h
57 include/pybind11/options.h
58 include/pybind11/eigen.h
59 include/pybind11/eval.h
60 include/pybind11/functional.h
61 include/pybind11/numpy.h
62 include/pybind11/operators.h
63 include/pybind11/pybind11.h
64 include/pybind11/pytypes.h
65 include/pybind11/stl.h
66 include/pybind11/stl_bind.h
67 include/pybind11/typeid.h
68)
69string(REPLACE "include/" "${CMAKE_CURRENT_SOURCE_DIR}/include/"
70 PYBIND11_HEADERS "${PYBIND11_HEADERS}")
71
72if (PYBIND11_TEST)
73 add_subdirectory(tests)
74endif()
75
76include(GNUInstallDirs)
77include(CMakePackageConfigHelpers)
78
79# extract project version from source
80file(STRINGS "${PYBIND11_INCLUDE_DIR}/pybind11/common.h" pybind11_version_defines
81 REGEX "#define PYBIND11_VERSION_(MAJOR|MINOR|PATCH) ")
82foreach(ver ${pybind11_version_defines})
83 if (ver MATCHES "#define PYBIND11_VERSION_(MAJOR|MINOR|PATCH) +([^ ]+)$")
84 set(PYBIND11_VERSION_${CMAKE_MATCH_1} "${CMAKE_MATCH_2}" CACHE INTERNAL "")
85 endif()
86endforeach()
87set(${PROJECT_NAME}_VERSION ${PYBIND11_VERSION_MAJOR}.${PYBIND11_VERSION_MINOR}.${PYBIND11_VERSION_PATCH})
88
89if(NOT (CMAKE_VERSION VERSION_LESS 3.0)) # CMake >= 3.0
90 # Build an interface library target:
91 add_library(pybind11 INTERFACE)
92 target_include_directories(pybind11 INTERFACE $<BUILD_INTERFACE:${PYBIND11_INCLUDE_DIR}>
93 $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>)
94 if(APPLE)
95 target_link_libraries(pybind11 INTERFACE "-undefined dynamic_lookup")
96 endif()
97endif()
98
99if (PYBIND11_INSTALL)
100 install(FILES ${PYBIND11_HEADERS}
101 DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/pybind11)
102 # GNUInstallDirs "DATADIR" wrong here; CMake search path wants "share".
103 set(PYBIND11_CMAKECONFIG_INSTALL_DIR "share/cmake/${PROJECT_NAME}" CACHE STRING "install path for pybind11Config.cmake")
104
105 configure_package_config_file(tools/${PROJECT_NAME}Config.cmake.in
106 "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake"
107 INSTALL_DESTINATION ${PYBIND11_CMAKECONFIG_INSTALL_DIR})
108 write_basic_package_version_file(${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake
109 VERSION ${${PROJECT_NAME}_VERSION}
110 COMPATIBILITY AnyNewerVersion)
111 install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake
112 ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake
113 tools/FindPythonLibsNew.cmake
114 tools/pybind11Tools.cmake
115 DESTINATION ${PYBIND11_CMAKECONFIG_INSTALL_DIR})
116
117 if(NOT (CMAKE_VERSION VERSION_LESS 3.0))
118 install(TARGETS pybind11
119 EXPORT "${PROJECT_NAME}Targets")
120 install(EXPORT "${PROJECT_NAME}Targets"
121 NAMESPACE "${PROJECT_NAME}::"
122 DESTINATION ${PYBIND11_CMAKECONFIG_INSTALL_DIR})
123 message(STATUS "Exporting ${PROJECT_NAME}::pybind11 interface library target version ${${PROJECT_NAME}_VERSION}")
124 endif()
125endif()