CMakeLists.txt: Do not require C++ (#3956)
By default, the project() CMake command defaults to C and C++. [1] Therefore, CMake might perform tests for both C and C++ compilers as part of the configuration phase. However, this has the consequence of the configuration phase to fail if the system does not have a C++ toolchain installed, even if C++ is not really used by the top-level project under the default settings. Some configurations might still require a C++ toolchain, so enable_language is selectively called under such circumstances. [1]: https://cmake.org/cmake/help/latest/command/project.html
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@ -6,6 +6,7 @@ set (PLATFORM_SHARED_DIR ${CMAKE_CURRENT_LIST_DIR})
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add_definitions(-DBH_PLATFORM_WINDOWS)
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add_definitions(-DHAVE_STRUCT_TIMESPEC)
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add_definitions(-D_WINSOCK_DEPRECATED_NO_WARNINGS)
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enable_language(CXX)
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include_directories(${PLATFORM_SHARED_DIR})
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include_directories(${PLATFORM_SHARED_DIR}/../include)
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