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# FindPython
# --------
# Finds Python3 libraries
#
# This module will search for the required python libraries on the system
# If multiple versions are found, the highest version will be used.
#
# --------
#
# the following variables influence behaviour:
#
# PYTHON_PATH - use external python not found in system paths
# usage: -DPYTHON_PATH=/path/to/python/lib
# PYTHON_VER - use exact python version, fail if not found
# usage: -DPYTHON_VER=3.8
#
# --------
#
# This will define the following targets:
#
# ${APP_NAME_LC}::Python - The Python library
if(NOT TARGET ${APP_NAME_LC}::${CMAKE_FIND_PACKAGE_NAME})
# for Depends/Windows builds, set search root dir to libdir path
if(KODI_DEPENDSBUILD
OR CMAKE_SYSTEM_NAME STREQUAL WINDOWS
OR CMAKE_SYSTEM_NAME STREQUAL WindowsStore)
set(Python3_USE_STATIC_LIBS TRUE)
set(Python3_ROOT_DIR ${libdir})
if(KODI_DEPENDSBUILD)
# Force set to tools/depends python version
set(PYTHON_VER 3.12)
endif()
endif()
# Provide root dir to search for Python if provided
if(PYTHON_PATH)
set(Python3_ROOT_DIR ${PYTHON_PATH})
# unset cache var so we can generate again with a different dir (or none) if desired
unset(PYTHON_PATH CACHE)
endif()
# Set specific version of Python to find if provided
if(PYTHON_VER)
set(VERSION ${PYTHON_VER})
set(EXACT_VER "EXACT")
# unset cache var so we can generate again with a different ver (or none) if desired
unset(PYTHON_VER CACHE)
endif()
find_package(Python3 ${VERSION} ${EXACT_VER} COMPONENTS Development)
if(Python3_FOUND)
if(KODI_DEPENDSBUILD)
find_library(EXPAT_LIBRARY expat REQUIRED)
find_library(FFI_LIBRARY ffi REQUIRED)
find_library(GMP_LIBRARY gmp REQUIRED)
find_library(INTL_LIBRARY intl REQUIRED)
find_library(LZMA_LIBRARY lzma REQUIRED)
if(NOT CORE_SYSTEM_NAME STREQUAL android)
set(PYTHON_DEP_LIBRARIES pthread dl util)
if(CORE_SYSTEM_NAME STREQUAL linux)
# python archive built via depends requires librt for _posixshmem library
list(APPEND PYTHON_DEP_LIBRARIES rt)
endif()
endif()
set(Py_LINK_LIBRARIES ${EXPAT_LIBRARY} ${FFI_LIBRARY} ${GMP_LIBRARY} ${INTL_LIBRARY} ${LZMA_LIBRARY} ${PYTHON_DEP_LIBRARIES})
endif()
# We use this all over the place. Maybe it would be nice to keep it as a TARGET property
# but for now a cached variable will do
set(PYTHON_VERSION "${Python3_VERSION_MAJOR}.${Python3_VERSION_MINOR}" CACHE INTERNAL "" FORCE)
add_library(${APP_NAME_LC}::${CMAKE_FIND_PACKAGE_NAME} UNKNOWN IMPORTED)
set_target_properties(${APP_NAME_LC}::${CMAKE_FIND_PACKAGE_NAME} PROPERTIES
IMPORTED_LOCATION "${Python3_LIBRARIES}"
INTERFACE_INCLUDE_DIRECTORIES "${Python3_INCLUDE_DIRS}"
INTERFACE_LINK_OPTIONS "${Python3_LINK_OPTIONS}"
INTERFACE_COMPILE_DEFINITIONS HAS_PYTHON)
if(Py_LINK_LIBRARIES)
set_target_properties(${APP_NAME_LC}::${CMAKE_FIND_PACKAGE_NAME} PROPERTIES
INTERFACE_LINK_LIBRARIES "${Py_LINK_LIBRARIES}")
endif()
endif()
endif()
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