llvm-project/lldb/cmake/modules/FindPythonAndSwig.cmake

69 lines
2.6 KiB
CMake

#.rst:
# FindPythonAndSwig
# -----------
#
# Find the python interpreter and libraries as a whole.
macro(FindPython3)
# Use PYTHON_HOME as a hint to find Python 3.
set(Python3_ROOT_DIR "${PYTHON_HOME}")
find_package(Python3 COMPONENTS Interpreter Development)
if(Python3_FOUND AND Python3_Interpreter_FOUND)
# The install name for the Python 3 framework in Xcode is relative to
# the framework's location and not the dylib itself.
#
# @rpath/Python3.framework/Versions/3.x/Python3
#
# This means that we need to compute the path to the Python3.framework
# and use that as the RPATH instead of the usual dylib's directory.
#
# The check below shouldn't match Homebrew's Python framework as it is
# called Python.framework instead of Python3.framework.
if (APPLE AND Python3_LIBRARIES MATCHES "Python3.framework")
string(FIND "${Python3_LIBRARIES}" "Python3.framework" python_framework_pos)
string(SUBSTRING "${Python3_LIBRARIES}" "0" ${python_framework_pos} Python3_RPATH)
endif()
set(PYTHON3_FOUND TRUE)
mark_as_advanced(
Python3_LIBRARIES
Python3_INCLUDE_DIRS
Python3_EXECUTABLE
Python3_RPATH
SWIG_EXECUTABLE)
endif()
endmacro()
if(Python3_LIBRARIES AND Python3_INCLUDE_DIRS AND Python3_EXECUTABLE AND SWIG_EXECUTABLE)
set(PYTHONANDSWIG_FOUND TRUE)
else()
find_package(SWIG 3.0)
if (SWIG_FOUND)
FindPython3()
else()
message(STATUS "SWIG 3 or later is required for Python support in LLDB but could not be found")
endif()
get_property(MULTI_CONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
if ("${Python3_VERSION}" VERSION_GREATER_EQUAL "3.7" AND
"${SWIG_VERSION}" VERSION_LESS "4.0" AND WIN32 AND (
${MULTI_CONFIG} OR (uppercase_CMAKE_BUILD_TYPE STREQUAL "DEBUG")))
# Technically this can happen with non-Windows builds too, but we are not
# able to detect whether Python was built with assertions, and only Windows
# has the requirement that Debug LLDB must use Debug Python.
message(WARNING "Debug builds of LLDB are likely to be unusable due to "
"<https://github.com/swig/swig/issues/1321>. Please use SWIG >= 4.0.")
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(PythonAndSwig
FOUND_VAR
PYTHONANDSWIG_FOUND
REQUIRED_VARS
Python3_LIBRARIES
Python3_INCLUDE_DIRS
Python3_EXECUTABLE
SWIG_EXECUTABLE)
endif()