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# findpybind11.cmake
FIND_PATH(PYBIND11_INCLUDE_DIR
NAMES pybind11/pybind11.h
PATHS
${PYBIND11_ROOT}
${PYBIND11_ROOT}/include
${PYBIND11_INCLUDE_DIR}
${PYBIND11_INCLUDE_DIRS}
)
MARK_AS_ADVANCED(
PYBIND11_INCLUDE_DIR
)
SET(PYBIND11_INCLUDE_DIRS "${PYBIND11_INCLUDE_DIR}")
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(PyBind11 DEFAULT_MSG PYBIND11_INCLUDE_DIRS)
INCLUDE_DIRECTORIES(SYSTEM ${PYBIND11_INCLUDE_DIR})
FUNCTION(PYBIND11_ADD_MODULE _NAME)
add_library( ${_NAME} ${ARGN})
# Don't add a 'lib' prefix to the shared library
set_target_properties(${_NAME} PROPERTIES PREFIX "")
if (WIN32)
if (MSVC)
# Enforce size-based optimization and link time code generation
# on MSVC (~30% smaller binaries in experiments). /bigobj is needed
# for bigger binding projects due to the limit to 64k addressable sections
# /MP enables multithreaded builds (relevant when there are many files).
set_target_properties(${_NAME} PROPERTIES COMPILE_FLAGS "/Os /GL /MP /bigobj")
set_target_properties(${_NAME} PROPERTIES LINK_FLAGS "/LTCG")
endif()
# .PYD file extension on Windows
set_target_properties(${_NAME} PROPERTIES SUFFIX ".pyd")
# Link against the Python shared library
#target_link_libraries(example ${PYTHON_LIBRARY})
elseif (UNIX)
# It's quite common to have multiple copies of the same Python version
# installed on one's system. E.g.: one copy from the OS and another copy
# that's statically linked into an application like Blender or Maya.
# If we link our plugin library against the OS Python here and import it
# into Blender or Maya later on, this will cause segfaults when multiple
# conflicting Python instances are active at the same time (even when they
# are of the same version).
# Windows is not affected by this issue since it handles DLL imports
# differently. The solution for Linux and Mac OS is simple: we just don't
# link against the Python library. The resulting shared library will have
# missing symbols, but that's perfectly fine -- they will be resolved at
# import time.
# .SO file extension on Linux/Mac OS
set_target_properties(${_NAME} PROPERTIES SUFFIX ".so")
# Optimize for a small binary size
if (NOT ${U_CMAKE_BUILD_TYPE} MATCHES DEBUG)
set_target_properties(${_NAME} PROPERTIES COMPILE_FLAGS "-Os")
endif()
# Strip unnecessary sections of the binary on Linux/Mac OS
# if(APPLE)
# set_target_properties(${_NAME} PROPERTIES MACOSX_RPATH ".")
# set_target_properties(${_NAME} PROPERTIES LINK_FLAGS "-undefined dynamic_lookup ")
# if (NOT ${U_CMAKE_BUILD_TYPE} MATCHES DEBUG)
# add_custom_command(TARGET ${_NAME} POST_BUILD COMMAND strip -u -r ${PROJECT_SOURCE_DIR}/${_NAME}/${_NAME}.so)
# endif()
# else()
# if (NOT ${U_CMAKE_BUILD_TYPE} MATCHES DEBUG)
# add_custom_command(TARGET ${_NAME} POST_BUILD COMMAND strip ${PROJECT_SOURCE_DIR}/${_NAME}/${_NAME}.so)
# endif()
# endif()
endif()
endfunction()
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