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CMake: don't use -std=c++1z

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Some toolchains provide enough of C++17 to conflict with Dolphin's
included backport of std::variant and std::optional. Specifically,
the recently-released macOS 10.13 SDK does not provide the <optional>
or <variant> headers, but does provide `in_place_t` in the <utility>
header.
This commit is contained in:
Michael M 2017-09-27 15:46:25 -07:00
parent 5b750c4ac5
commit 77a6003b87
1 changed files with 3 additions and 6 deletions
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9
Source/CMakeLists.txt
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@ -20,12 +20,9 @@ else()
# CMAKE_CXX_STANDARD cannot be used here because we require C++14 or newer, not any standard.
check_and_add_flag(CXX17 -std=c++17)
if(NOT FLAG_CXX_CXX17)
check_and_add_flag(CXX1Z -std=c++1z)
if (NOT FLAG_CXX_CXX1Z)
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
endif()
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
endif()
# These compat headers must not be in the include path when building with MSVC,