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FindPython: use 'sysconfig' as alternate to 'distutils.sysconfig'

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To support any python installation, if package 'distutils.sysconfig'
is not available, try to use package 'sysconfig'.

Fixes: #20502
This commit is contained in:
Marc Chevrier
2020-03-26 18:01:30 +01:00
parent 67e2fef722
commit dd0664415a
1 changed files with 24 additions and 12 deletions
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36
Modules/FindPython/Support.cmake
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@@ -321,7 +321,7 @@ function (_PYTHON_GET_CONFIG_VAR _PYTHON_PGCV_VALUE NAME)
if (_${_PYTHON_PREFIX}_EXECUTABLE AND NOT CMAKE_CROSSCOMPILING)
if (NAME STREQUAL "PREFIX")
execute_process (COMMAND "${_${_PYTHON_PREFIX}_EXECUTABLE}" -c "import sys; from distutils import sysconfig; sys.stdout.write(';'.join([sysconfig.PREFIX,sysconfig.EXEC_PREFIX,sysconfig.BASE_EXEC_PREFIX]))"
execute_process (COMMAND "${_${_PYTHON_PREFIX}_EXECUTABLE}" -c "import sys\ntry:\n from distutils import sysconfig\n sys.stdout.write(';'.join([sysconfig.PREFIX,sysconfig.EXEC_PREFIX,sysconfig.BASE_EXEC_PREFIX]))\nexcept Exception:\n import sysconfig\n sys.stdout.write(';'.join([sysconfig.get_config_var('base') or '', sysconfig.get_config_var('installed_base') or '']))"
RESULT_VARIABLE _result
OUTPUT_VARIABLE _values
ERROR_QUIET
@@ -332,16 +332,23 @@ function (_PYTHON_GET_CONFIG_VAR _PYTHON_PGCV_VALUE NAME)
list (REMOVE_DUPLICATES _values)
endif()
elseif (NAME STREQUAL "INCLUDES")
execute_process (COMMAND "${_${_PYTHON_PREFIX}_EXECUTABLE}" -c "import sys; from distutils import sysconfig; sys.stdout.write(';'.join([sysconfig.get_python_inc(plat_specific=True),sysconfig.get_python_inc(plat_specific=False)]))"
if (WIN32)
set (_scheme "nt")
else()
set (_scheme "posix_prefix")
endif()
execute_process (COMMAND "${_${_PYTHON_PREFIX}_EXECUTABLE}" -c "import sys\ntry:\n from distutils import sysconfig\n sys.stdout.write(';'.join([sysconfig.get_python_inc(plat_specific=True),sysconfig.get_python_inc(plat_specific=False)]))\nexcept Exception:\n import sysconfig\n sys.stdout.write(';'.join([sysconfig.get_path('platinclude'),sysconfig.get_path('platinclude','${_scheme}'),sysconfig.get_path('include'),sysconfig.get_path('include','${_scheme}')]))"
RESULT_VARIABLE _result
OUTPUT_VARIABLE _values
ERROR_QUIET
OUTPUT_STRIP_TRAILING_WHITESPACE)
if (_result)
unset (_values)
else()
list (REMOVE_DUPLICATES _values)
endif()
elseif (NAME STREQUAL "SOABI")
execute_process (COMMAND "${_${_PYTHON_PREFIX}_EXECUTABLE}" -c "import sys; from distutils import sysconfig;sys.stdout.write(';'.join([sysconfig.get_config_var('SOABI') or '',sysconfig.get_config_var('EXT_SUFFIX') or '']))"
execute_process (COMMAND "${_${_PYTHON_PREFIX}_EXECUTABLE}" -c "import sys\ntry:\n from distutils import sysconfig\n sys.stdout.write(';'.join([sysconfig.get_config_var('SOABI') or '',sysconfig.get_config_var('EXT_SUFFIX') or '']))\nexcept Exception:\n import sysconfig;sys.stdout.write(';'.join([sysconfig.get_config_var('SOABI') or '',sysconfig.get_config_var('EXT_SUFFIX') or '']))"
RESULT_VARIABLE _result
OUTPUT_VARIABLE _soabi
ERROR_QUIET
@@ -349,14 +356,15 @@ function (_PYTHON_GET_CONFIG_VAR _PYTHON_PGCV_VALUE NAME)
if (_result)
unset (_values)
else()
list (GET _soabi 0 _values)
if (NOT _values)
# try to compute SOABI from EXT_SUFFIX
list (GET _soabi 1 _values)
if (_values)
# clean-up: remove prefix character and suffix
string (REGEX REPLACE "^[.-](.+)(${CMAKE_SHARED_LIBRARY_SUFFIX}|\\.(so|pyd))$" "\\1" _values "${_values}")
foreach (_item IN LISTS _soabi)
if (_item)
set (_values "${_item}")
break()
endif()
endforeach()
if (_values)
# clean-up: remove prefix character and suffix
string (REGEX REPLACE "^[.-](.+)(${CMAKE_SHARED_LIBRARY_SUFFIX}|\\.(so|pyd))$" "\\1" _values "${_values}")
endif()
endif()
else()
@@ -364,7 +372,7 @@ function (_PYTHON_GET_CONFIG_VAR _PYTHON_PGCV_VALUE NAME)
if (NAME STREQUAL "CONFIGDIR")
set (config_flag "LIBPL")
endif()
execute_process (COMMAND "${_${_PYTHON_PREFIX}_EXECUTABLE}" -c "import sys; from distutils import sysconfig; sys.stdout.write(sysconfig.get_config_var('${config_flag}'))"
execute_process (COMMAND "${_${_PYTHON_PREFIX}_EXECUTABLE}" -c "import sys\ntry:\n from distutils import sysconfig\n sys.stdout.write(sysconfig.get_config_var('${config_flag}'))\nexcept Exception:\n import sysconfig\n sys.stdout.write(sysconfig.get_config_var('${config_flag}'))"
RESULT_VARIABLE _result
OUTPUT_VARIABLE _values
ERROR_QUIET
@@ -392,6 +400,10 @@ function (_PYTHON_GET_CONFIG_VAR _PYTHON_PGCV_VALUE NAME)
list (REMOVE_DUPLICATES _values)
endif()
if (WIN32 AND NAME MATCHES "^(PREFIX|CONFIGDIR|INCLUDES)$")
file (TO_CMAKE_PATH "${_values}" _values)
endif()
set (${_PYTHON_PGCV_VALUE} "${_values}" PARENT_SCOPE)
endfunction()
@@ -1381,7 +1393,7 @@ if ("Interpreter" IN_LIST ${_PYTHON_PREFIX}_FIND_COMPONENTS)
endif()
# retrieve various package installation directories
execute_process (COMMAND "${_${_PYTHON_PREFIX}_EXECUTABLE}" -c "import sys; from distutils import sysconfig;sys.stdout.write(';'.join([sysconfig.get_python_lib(plat_specific=False,standard_lib=True),sysconfig.get_python_lib(plat_specific=True,standard_lib=True),sysconfig.get_python_lib(plat_specific=False,standard_lib=False),sysconfig.get_python_lib(plat_specific=True,standard_lib=False)]))"
execute_process (COMMAND "${_${_PYTHON_PREFIX}_EXECUTABLE}" -c "import sys\ntry:\n from distutils import sysconfig\n sys.stdout.write(';'.join([sysconfig.get_python_lib(plat_specific=False,standard_lib=True),sysconfig.get_python_lib(plat_specific=True,standard_lib=True),sysconfig.get_python_lib(plat_specific=False,standard_lib=False),sysconfig.get_python_lib(plat_specific=True,standard_lib=False)]))\nexcept Exception:\n import sysconfig\n sys.stdout.write(';'.join([sysconfig.get_path('stdlib'),sysconfig.get_path('platstdlib'),sysconfig.get_path('purelib'),sysconfig.get_path('platlib')]))"
RESULT_VARIABLE _${_PYTHON_PREFIX}_RESULT
OUTPUT_VARIABLE _${_PYTHON_PREFIX}_LIBPATHS
ERROR_QUIET)