87 lines
3.2 KiB
CMake
87 lines
3.2 KiB
CMake
|
cmake_minimum_required(VERSION 3.5)
|
||
|
|
|
||
|
|
function(pybind11_guess_python_module_extension python)
|
||
|
|
|
||
|
|
# The SETUPTOOLS_EXT_SUFFIX environment variable takes precedence:
|
||
|
|
if(NOT DEFINED PYTHON_MODULE_EXT_SUFFIX AND DEFINED ENV{SETUPTOOLS_EXT_SUFFIX})
|
||
|
|
message(
|
||
|
|
STATUS
|
||
|
|
"Getting Python extension suffix from ENV{SETUPTOOLS_EXT_SUFFIX}: $ENV{SETUPTOOLS_EXT_SUFFIX}"
|
||
|
|
)
|
||
|
|
set(PYTHON_MODULE_EXT_SUFFIX
|
||
|
|
"$ENV{SETUPTOOLS_EXT_SUFFIX}"
|
||
|
|
CACHE
|
||
|
|
STRING
|
||
|
|
"Extension suffix for Python extension modules (Initialized from SETUPTOOLS_EXT_SUFFIX)")
|
||
|
|
endif()
|
||
|
|
# If that didn't work, use the Python_SOABI variable:
|
||
|
|
if(NOT DEFINED PYTHON_MODULE_EXT_SUFFIX AND DEFINED ${python}_SOABI)
|
||
|
|
message(
|
||
|
|
STATUS "Determining Python extension suffix based on ${python}_SOABI: ${${python}_SOABI}")
|
||
|
|
# The final extension depends on the system
|
||
|
|
set(_PY_BUILD_EXTENSION "${CMAKE_SHARED_MODULE_SUFFIX}")
|
||
|
|
if(CMAKE_SYSTEM_NAME STREQUAL "Windows")
|
||
|
|
set(_PY_BUILD_EXTENSION ".pyd")
|
||
|
|
endif()
|
||
|
|
# If the SOABI already has an extension, use it as the full suffix
|
||
|
|
# (used for debug versions of Python on Windows)
|
||
|
|
if(${python}_SOABI MATCHES "\\.")
|
||
|
|
set(PYTHON_MODULE_EXT_SUFFIX "${${python}_SOABI}")
|
||
|
|
# If the SOABI is empty, this is usually a bug, but we generate a
|
||
|
|
# correct extension anyway, which is the best we can do
|
||
|
|
elseif("${${python}_SOABI}" STREQUAL "")
|
||
|
|
message(
|
||
|
|
WARNING
|
||
|
|
"${python}_SOABI is defined but empty. You may want to set PYTHON_MODULE_EXT_SUFFIX explicitly."
|
||
|
|
)
|
||
|
|
set(PYTHON_MODULE_EXT_SUFFIX "${_PY_BUILD_EXTENSION}")
|
||
|
|
# Otherwise, add the system-dependent extension to it
|
||
|
|
else()
|
||
|
|
set(PYTHON_MODULE_EXT_SUFFIX ".${${python}_SOABI}${_PY_BUILD_EXTENSION}")
|
||
|
|
endif()
|
||
|
|
endif()
|
||
|
|
|
||
|
|
# If we could not deduce the extension suffix, unset the results:
|
||
|
|
if(NOT DEFINED PYTHON_MODULE_EXT_SUFFIX)
|
||
|
|
unset(PYTHON_MODULE_DEBUG_POSTFIX PARENT_SCOPE)
|
||
|
|
unset(PYTHON_MODULE_EXTENSION PARENT_SCOPE)
|
||
|
|
unset(PYTHON_IS_DEBUG PARENT_SCOPE)
|
||
|
|
return()
|
||
|
|
endif()
|
||
|
|
|
||
|
|
# Sanity checks:
|
||
|
|
if(${python}_SOABI AND NOT (PYTHON_MODULE_EXT_SUFFIX STREQUAL ${python}_SOABI
|
||
|
|
OR PYTHON_MODULE_EXT_SUFFIX MATCHES "\\.${${python}_SOABI}\\."))
|
||
|
|
message(
|
||
|
|
WARNING
|
||
|
|
"Python extension suffix (${PYTHON_MODULE_EXT_SUFFIX}) does not match ${python}_SOABI (${${python}_SOABI})."
|
||
|
|
)
|
||
|
|
endif()
|
||
|
|
|
||
|
|
# Separate file name postfix from extension: (https://github.com/pybind/pybind11/issues/4699)
|
||
|
|
get_filename_component(_PYTHON_MODULE_DEBUG_POSTFIX "${PYTHON_MODULE_EXT_SUFFIX}" NAME_WE)
|
||
|
|
get_filename_component(_PYTHON_MODULE_EXTENSION "${PYTHON_MODULE_EXT_SUFFIX}" EXT)
|
||
|
|
|
||
|
|
# Try to deduce the debug ABI from the extension suffix:
|
||
|
|
if(NOT DEFINED _PYTHON_IS_DEBUG)
|
||
|
|
if(_PYTHON_MODULE_EXTENSION MATCHES "^\\.(cpython-|cp|pypy)[0-9]+dm?-"
|
||
|
|
OR _PYTHON_MODULE_DEBUG_POSTFIX MATCHES "^_d")
|
||
|
|
set(_PYTHON_IS_DEBUG On)
|
||
|
|
else()
|
||
|
|
set(_PYTHON_IS_DEBUG Off)
|
||
|
|
endif()
|
||
|
|
endif()
|
||
|
|
|
||
|
|
# Return results
|
||
|
|
set(PYTHON_MODULE_DEBUG_POSTFIX
|
||
|
|
"${_PYTHON_MODULE_DEBUG_POSTFIX}"
|
||
|
|
PARENT_SCOPE)
|
||
|
|
set(PYTHON_MODULE_EXTENSION
|
||
|
|
"${_PYTHON_MODULE_EXTENSION}"
|
||
|
|
PARENT_SCOPE)
|
||
|
|
set(PYTHON_IS_DEBUG
|
||
|
|
"${_PYTHON_IS_DEBUG}"
|
||
|
|
PARENT_SCOPE)
|
||
|
|
|
||
|
|
endfunction()
|