Some work about adaptive color scheme for Web UI (PR #19901)
http://[316:c51a:62a3:8b9::4]/d4708/qBittorrent/src/branch/adaptive-webui
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25 lines
1.3 KiB
25 lines
1.3 KiB
5 years ago
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# Function for ensuring the build does not use a lower than the required minimum C++ mode, _min_std.
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# It fails the build if:
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# - the compiler does not fully support _min_std
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# - the user specified a mode lower than _min_std via the CMAKE_CXX_STANDARD variable
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# If both checks are successful, it sets the following variables at the PARENT_SCOPE:
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# - CMAKE_CXX_STANDARD with the value _min_std, if it was not already set to a value >= _min_std
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# - CMAKE_CXX_STANDARD_REQUIRED with the value ON
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function(qbt_minimum_cxx_mode_check _min_std)
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# ensure the compiler fully supports the minimum required C++ mode.
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if(NOT CMAKE_CXX${_min_std}_STANDARD__HAS_FULL_SUPPORT)
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message(FATAL_ERROR "${PROJECT_NAME} requires a compiler with full C++${_min_std} support")
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endif()
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# now we know that the compiler fully supports the minimum required C++ mode,
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# but we must still prevent the user or compiler from forcing/defaulting to an insufficient C++ mode
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if(NOT CMAKE_CXX_STANDARD)
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set(CMAKE_CXX_STANDARD ${_min_std} PARENT_SCOPE)
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elseif((CMAKE_CXX_STANDARD VERSION_LESS ${_min_std}) OR (CMAKE_CXX_STANDARD VERSION_EQUAL 98))
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message(FATAL_ERROR "${PROJECT_NAME} has to be built with at least C++${_min_std} mode.")
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endif()
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set(CMAKE_CXX_STANDARD_REQUIRED ON PARENT_SCOPE)
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endfunction()
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