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65 lines
2.2 KiB
65 lines
2.2 KiB
cmake_minimum_required (VERSION 3.18...3.19)
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project (TestVersionRange LANGUAGES C)
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find_package (${Python} ${Python_REQUESTED_VERSION} EXACT COMPONENTS Interpreter)
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if (NOT ${Python}_FOUND)
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message (FATAL_ERROR "Failed to find ${Python} ${Python_REQUESTED_VERSION}")
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endif()
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if (Python_REQUESTED_VERSION VERSION_LESS 3.0)
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set (IN_VERSION_RANGE 2.0...<3.0)
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set (OUT_VERSION_RANGE 2.0...<${${Python}_VERSION})
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else()
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set (IN_VERSION_RANGE 3.0...<4.0)
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set (OUT_VERSION_RANGE 3.0...<${${Python}_VERSION})
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endif()
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function (FIND_PYTHON EXPECTED_VERSION RANGE)
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macro (FIND_PYTHON_PACKAGE)
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unset (_${Python}_EXECUTABLE CACHE)
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unset (_${Python}_LIBRARY_RELEASE CACHE)
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unset (_${Python}_INCLUDE_DIR CACHE)
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unset (${Python}_FOUND)
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find_package (${Python} ${ARGV})
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endmacro()
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find_python_package(${RANGE} ${ARGN})
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if (EXPECTED_VERSION STREQUAL "NONE")
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while (${Python}_FOUND AND ${Python}_VERSION VERSION_GREATER ${Python_REQUESTED_VERSION})
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# Possible if multiple versions are installed
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# Try with a different range
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find_python_package(${Python_REQUESTED_VERSION}.0...<${${Python}_VERSION} ${ARGN})
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endwhile()
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if (${Python}_FOUND)
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message (SEND_ERROR "Unexpectedly found version: ${${Python}_VERSION} for '${Python} ${Python_REQUESTED_VERSION}.0...<${${Python}_VERSION} ${ARGN}'")
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endif()
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return()
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endif()
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if (NOT ${Python}_FOUND)
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message (SEND_ERROR "Not found: ${Python} ${RANGE} ${ARGN}")
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elseif (NOT ${Python}_VERSION VERSION_EQUAL EXPECTED_VERSION)
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message (SEND_ERROR "Wrong version: ${${Python}_VERSION} for '${Python} ${RANGE} ${ARGN}'")
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endif()
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endfunction()
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find_python (${${Python}_VERSION} ${IN_VERSION_RANGE} COMPONENTS Interpreter)
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if (${Python}_FIND_IMPLEMENTATIONS STREQUAL "IronPython")
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find_python (${${Python}_VERSION} ${IN_VERSION_RANGE} COMPONENTS Compiler)
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else()
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find_python (${${Python}_VERSION} ${IN_VERSION_RANGE} COMPONENTS Development)
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endif()
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find_python ("NONE" ${OUT_VERSION_RANGE} COMPONENTS Interpreter)
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if (${Python}_FIND_IMPLEMENTATIONS STREQUAL "IronPython")
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find_python ("NONE" ${OUT_VERSION_RANGE} COMPONENTS Compiler)
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else()
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find_python ("NONE" ${OUT_VERSION_RANGE} COMPONENTS Development)
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endif()
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find_python ("NONE" 5...6 COMPONENTS Interpreter)
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