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FindPython: add support for multiple searches in same directory

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In some situations, like cross-compilation, it can be required to search for
the host python interpreter as well as the cross-compilation development
artifacts.
By managing different prefixes for the artifacts, multiple and independent
searches can be achieved.
This commit is contained in:
Marc Chevrier
2025-01-05 17:27:42 +01:00
parent ef6f5774fa
commit 9b0510fa57
11 changed files with 468 additions and 154 deletions
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41
Tests/FindPython/Python2/CMakeLists.txt
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@@ -45,3 +45,44 @@ add_test(NAME findpython2_script
COMMAND "${CMAKE_COMMAND}" -DPYTHON_PACKAGE_NAME=Python2
-DPython2_FIND_STRATEGY=${Python2_FIND_STRATEGY}
-P "${CMAKE_CURRENT_LIST_DIR}/../FindPythonScript.cmake")
#
# New search with user's prefix
#
foreach(item IN ITEMS FOUND Development_FOUND Development.Module_FOUND Development.Embed_FOUND)
unset(Python2_${item})
endforeach()
set(Python2_ARTIFACTS_PREFIX "_TEST")
find_package(Python2 REQUIRED COMPONENTS Interpreter Development)
if (NOT Python2_TEST_FOUND OR NOT Python2_FOUND)
message (FATAL_ERROR "Failed to find Python 2 (TEST prefix)")
endif()
if (NOT Python2_TEST_Development_FOUND OR NOT Python2_Development_FOUND)
message (FATAL_ERROR "Failed to find Python 2 'Development' component (TEST prefix)")
endif()
if (NOT Python2_TEST_Development.Module_FOUND OR NOT Python2_Development.Module_FOUND)
message (FATAL_ERROR "Failed to find Python 2 'Development.Module' component (TEST prefix)")
endif()
if (NOT Python2_TEST_Development.Embed_FOUND OR NOT Python2_Development.Embed_FOUND)
message (FATAL_ERROR "Failed to find Python 2 'Development.Embed' component (TEST prefix)")
endif()
if(NOT TARGET Python2_TEST::Interpreter)
message(SEND_ERROR "Python2_TEST::Interpreter not found")
endif()
if(NOT TARGET Python2_TEST::Python)
message(SEND_ERROR "Python2_TEST::Python not found")
endif()
if(NOT TARGET Python2_TEST::Module)
message(SEND_ERROR "Python2_TEST::Module not found")
endif()
Python2_TEST_add_library (TEST_spam2 MODULE ../TEST_spam.c)
target_compile_definitions (TEST_spam2 PRIVATE PYTHON2)
add_test (NAME python2_TEST_spam2
COMMAND "${CMAKE_COMMAND}" -E env "PYTHONPATH=$<TARGET_FILE_DIR:TEST_spam2>"
"${Python2_INTERPRETER}" -c "import TEST_spam2; TEST_spam2.system(\"cd\")")