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Allow option() override by FetchContent #813

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May 14, 2024
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Allow option() override by FetchContent #813

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5 changes: 5 additions & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,11 @@ include( GNUInstallDirs )

get_directory_property( has_parent PARENT_DIRECTORY )

if (POLICY CMP0077)
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This makes it compatible with older CMake versions which do not support this policy.

# Allow CMake 3.13+ to override options when using FetchContent / add_subdirectory.
cmake_policy(SET CMP0077 NEW)
endif ()

# Override by setting on CMake command line.
set( CMAKE_CXX_STANDARD 17 CACHE STRING "The C++ standard whose features are requested." )

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