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FindPython: Add support for python specific crosscompiling emulator

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Fixes: #27996
This commit is contained in:
Marc Chevrier
2026-08-06 17:57:26 +02:00
parent 5190a9d88e
commit 8c0bb8ee95
12 changed files with 119 additions and 36 deletions
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Modules/FindPython/Support.cmake
+11 -4
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@@ -1034,7 +1034,7 @@ function (_PYTHON_GET_LAUNCHER _PYTHON_PGL_NAME)
endif()
if (_${_PYTHON_PREFIX}_CROSSCOMPILING)
set (${_PYTHON_PGL_NAME} "${CMAKE_CROSSCOMPILING_EMULATOR}" PARENT_SCOPE)
set (${_PYTHON_PGL_NAME} "${_${_PYTHON_PREFIX}_CROSSCOMPILING_EMULATOR}" PARENT_SCOPE)
return()
endif()
@@ -1642,16 +1642,23 @@ endif()
## handle cross-compiling constraints for components:
## If Interpreter and/or Compiler are specified with Development components
## the CMAKE_CROSSCOMPILING_EMULATOR variable should be defined
## the Python_CROSSCOMPILING_EMULATOR or CMAKE_CROSSCOMPILING_EMULATOR variable
## should be defined
cmake_policy (GET CMP0190 _${_PYTHON_PREFIX}_CROSSCOMPILING_POLICY)
unset (_${_PYTHON_PREFIX}_CROSSCOMPILING)
unset (_${_PYTHON_PREFIX}_CROSSCOMPILING_EMULATOR)
if (CMAKE_CROSSCOMPILING AND _${_PYTHON_PREFIX}_CROSSCOMPILING_POLICY STREQUAL "NEW")
if (${_PYTHON_BASE}_FIND_COMPONENTS MATCHES "Interpreter|Compiler"
AND ${_PYTHON_BASE}_FIND_COMPONENTS MATCHES "Development")
if (CMAKE_CROSSCOMPILING_EMULATOR)
if (DEFINED ${_PYTHON_PREFIX}_CROSSCOMPILING_EMULATOR OR CMAKE_CROSSCOMPILING_EMULATOR)
set (_${_PYTHON_PREFIX}_CROSSCOMPILING TRUE)
if (DEFINED ${_PYTHON_PREFIX}_CROSSCOMPILING_EMULATOR)
set (_${_PYTHON_PREFIX}_CROSSCOMPILING_EMULATOR "${${_PYTHON_PREFIX}_CROSSCOMPILING_EMULATOR}")
else()
set (_${_PYTHON_PREFIX}_CROSSCOMPILING_EMULATOR "${CMAKE_CROSSCOMPILING_EMULATOR}")
endif()
else()
_python_display_failure ("${_PYTHON_PREFIX}: When cross-compiling, Interpreter and/or Compiler components cannot be searched when CMAKE_CROSSCOMPILING_EMULATOR variable is not specified (see policy CMP0190)." FATAL)
_python_display_failure ("${_PYTHON_PREFIX}: When cross-compiling, Interpreter and/or Compiler components cannot be searched when ${_PYTHON_PREFIX}_CROSSCOMPILING_EMULATOR or CMAKE_CROSSCOMPILING_EMULATOR variable is not specified (see policy CMP0190)." FATAL)
endif()
endif()
endif()