FindPython: Add version range support

Fixes: #21107
This commit is contained in:
Marc Chevrier
2020-09-21 19:31:43 +02:00
parent f002c1cfc7
commit e4b7049230
7 changed files with 491 additions and 142 deletions

View File

@@ -0,0 +1,55 @@
cmake_minimum_required (VERSION 3.18...3.19)
project (TestVersionRange LANGUAGES NONE)
find_package (${Python} ${Python_REQUESTED_VERSION} EXACT COMPONENTS Interpreter)
if (NOT ${Python}_FOUND)
message (FATAL_ERROR "Failed to find ${Python} ${Python_REQUESTED_VERSION}")
endif()
if (Python_REQUESTED_VERSION VERSION_LESS 3.0)
set (IN_VERSION_RANGE 2.0...<3.0)
set (OUT_VERSION_RANGE 2.0...<${${Python}_VERSION})
else()
set (IN_VERSION_RANGE 3.0...<4.0)
set (OUT_VERSION_RANGE 3.0...<${${Python}_VERSION})
endif()
function (FIND_PYTHON EXPECTED_VERSION)
unset (_${Python}_EXECUTABLE CACHE)
unset (_${Python}_LIBRARY_RELEASE CACHE)
unset (_${Python}_INCLUDE_DIR CACHE)
unset (${Python}_FOUND)
find_package (${ARGN})
if (EXPECTED_VERSION STREQUAL "NONE")
if (${Python}_FOUND)
message (SEND_ERROR "Unexpectedly found version: ${${Python}_VERSION} for ${ARGN}")
endif()
return()
endif()
if (NOT ${Python}_FOUND)
message (SEND_ERROR "Not found: ${ARGN}")
elseif (NOT ${Python}_VERSION VERSION_EQUAL EXPECTED_VERSION)
message (SEND_ERROR "Wrong version: ${${Python}_VERSION} for ${ARGN}")
endif()
endfunction()
find_python (${${Python}_VERSION} ${Python} ${IN_VERSION_RANGE} COMPONENTS Interpreter)
if (${Python}_FIND_IMPLEMENTATIONS STREQUAL "IronPython")
find_python (${${Python}_VERSION} ${Python} ${IN_VERSION_RANGE} COMPONENTS Compiler)
else()
find_python (${${Python}_VERSION} ${Python} ${IN_VERSION_RANGE} COMPONENTS Development)
endif()
find_python ("NONE" ${Python} ${OUT_VERSION_RANGE} COMPONENTS Interpreter)
if (${Python}_FIND_IMPLEMENTATIONS STREQUAL "IronPython")
find_python ("NONE" ${Python} ${OUT_VERSION_RANGE} COMPONENTS Compiler)
else()
find_python ("NONE" ${Python} ${OUT_VERSION_RANGE} COMPONENTS Development)
endif()
find_python ("NONE" ${Python} 5...6 COMPONENTS Interpreter)