mirror of
https://github.com/pybind/pybind11.git
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fad5d3386c
Currently select_cxx_standard(), which sets PYBIND11_CPP_STANDARD when
not externally set, is only called from pybind11_add_module(), but the
embed target setup (which runs unconditionally) makes use of
${PYBIND11_CPP_STANDARD}, which isn't set yet. This commit removes the
`select_cxx_standard` function completely and just always runs the
standard detection code.
This also tweaks the detection code to not bothering checking for the
`-std=c++11` flag when the `-std=c++14` detection succeeded.
101 lines
3.9 KiB
CMake
101 lines
3.9 KiB
CMake
# pybind11Config.cmake
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# --------------------
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#
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# PYBIND11 cmake module.
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# This module sets the following variables in your project::
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#
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# pybind11_FOUND - true if pybind11 and all required components found on the system
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# pybind11_VERSION - pybind11 version in format Major.Minor.Release
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# pybind11_INCLUDE_DIRS - Directories where pybind11 and python headers are located.
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# pybind11_INCLUDE_DIR - Directory where pybind11 headers are located.
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# pybind11_DEFINITIONS - Definitions necessary to use pybind11, namely USING_pybind11.
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# pybind11_LIBRARIES - compile flags and python libraries (as needed) to link against.
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# pybind11_LIBRARY - empty.
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# CMAKE_MODULE_PATH - appends location of accompanying FindPythonLibsNew.cmake and
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# pybind11Tools.cmake modules.
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#
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#
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# Available components: None
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#
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#
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# Exported targets::
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#
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# If pybind11 is found, this module defines the following :prop_tgt:`IMPORTED`
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# interface library targets::
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#
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# pybind11::module - for extension modules
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# pybind11::embed - for embedding the Python interpreter
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#
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# Python headers, libraries (as needed by platform), and the C++ standard
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# are attached to the target. Set PythonLibsNew variables to influence
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# python detection and PYBIND11_CPP_STANDARD (-std=c++11 or -std=c++14) to
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# influence standard setting. ::
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#
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# find_package(pybind11 CONFIG REQUIRED)
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# message(STATUS "Found pybind11 v${pybind11_VERSION}: ${pybind11_INCLUDE_DIRS}")
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#
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# # Create an extension module
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# add_library(mylib MODULE main.cpp)
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# target_link_libraries(mylib pybind11::module)
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#
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# # Or embed the Python interpreter into an executable
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# add_executable(myexe main.cpp)
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# target_link_libraries(myexe pybind11::embed)
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#
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# Suggested usage::
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#
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# find_package with version info is not recommended except for release versions. ::
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#
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# find_package(pybind11 CONFIG)
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# find_package(pybind11 2.0 EXACT CONFIG REQUIRED)
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#
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#
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# The following variables can be set to guide the search for this package::
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#
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# pybind11_DIR - CMake variable, set to directory containing this Config file
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# CMAKE_PREFIX_PATH - CMake variable, set to root directory of this package
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# PATH - environment variable, set to bin directory of this package
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# CMAKE_DISABLE_FIND_PACKAGE_pybind11 - CMake variable, disables
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# find_package(pybind11) when not REQUIRED, perhaps to force internal build
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@PACKAGE_INIT@
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set(PN pybind11)
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# location of pybind11/pybind11.h
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set(${PN}_INCLUDE_DIR "${PACKAGE_PREFIX_DIR}/@CMAKE_INSTALL_INCLUDEDIR@")
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set(${PN}_LIBRARY "")
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set(${PN}_DEFINITIONS USING_${PN})
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check_required_components(${PN})
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# make detectable the FindPythonLibsNew.cmake module
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list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_LIST_DIR})
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include(pybind11Tools)
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if(NOT (CMAKE_VERSION VERSION_LESS 3.0))
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#-----------------------------------------------------------------------------
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# Don't include targets if this file is being picked up by another
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# project which has already built this as a subproject
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#-----------------------------------------------------------------------------
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if(NOT TARGET ${PN}::pybind11)
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include("${CMAKE_CURRENT_LIST_DIR}/${PN}Targets.cmake")
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find_package(PythonLibsNew ${PYBIND11_PYTHON_VERSION} MODULE REQUIRED)
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set_property(TARGET ${PN}::pybind11 APPEND PROPERTY INTERFACE_INCLUDE_DIRECTORIES ${PYTHON_INCLUDE_DIRS})
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set_property(TARGET ${PN}::embed APPEND PROPERTY INTERFACE_LINK_LIBRARIES ${PYTHON_LIBRARIES})
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if(WIN32 OR CYGWIN)
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set_property(TARGET ${PN}::module APPEND PROPERTY INTERFACE_LINK_LIBRARIES ${PYTHON_LIBRARIES})
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endif()
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set_property(TARGET ${PN}::pybind11 APPEND PROPERTY INTERFACE_COMPILE_OPTIONS "${PYBIND11_CPP_STANDARD}")
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get_property(_iid TARGET ${PN}::pybind11 PROPERTY INTERFACE_INCLUDE_DIRECTORIES)
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get_property(_ill TARGET ${PN}::module PROPERTY INTERFACE_LINK_LIBRARIES)
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set(${PN}_INCLUDE_DIRS ${_iid})
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set(${PN}_LIBRARIES ${_ico} ${_ill})
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endif()
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endif()
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