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CheckLinkerFlag: Set policies needed by the implementation

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The module was added in CMake 3.18 by commit af96c0f4fa
(CheckLinkerFlag: Add module to check validity of linker flags,
2020-05-16, v3.18.0-rc1~103^2), but it is still possible for projects to
use it without setting policies to the 3.18 version level.
This commit is contained in:
Thomas Dickerson
2021-11-04 10:59:10 -04:00
committed by Brad King
parent fda948846b
commit 58c8d649e1
1 changed files with 6 additions and 0 deletions
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6
Modules/CheckLinkerFlag.cmake
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@@ -41,6 +41,10 @@ include_guard(GLOBAL)
include(CMakeCheckCompilerFlagCommonPatterns)
cmake_policy(PUSH)
cmake_policy(SET CMP0054 NEW) # if() quoted variables not dereferenced
cmake_policy(SET CMP0057 NEW) # if() supports IN_LIST
function(CHECK_LINKER_FLAG _lang _flag _var)
get_property (_supported_languages GLOBAL PROPERTY ENABLED_LANGUAGES)
if (NOT _lang IN_LIST _supported_languages)
@@ -82,3 +86,5 @@ function(CHECK_LINKER_FLAG _lang _flag _var)
endforeach()
set(${_var} "${${_var}}" PARENT_SCOPE)
endfunction()
cmake_policy(POP)