lib: cpp: Enable POSIX and GNU C extensions for libc++ (d8a696c3) · Commits · Wenxi XU / zephyr

LLVM C++ Standard Library aka. libc++ makes use of POSIX and GNU C extensions in its headers. While far from ideal, there is no other option but to globally enable these extensions for C++ source files in order to ensure that libc++ headers can be used. Signed-off-by:

Stephanos Ioannidis <root@stephanos.io>

lib/cpp/CMakeLists.txt

+8 −0

Changes for lib/cpp/CMakeLists.txt: 8 added lines, 0 removed lines.
Original line number	Diff line number	Diff line
		# SPDX-License-Identifier: Apache-2.0

		if(CONFIG_LIBCXX_LIBCPP)
		# LLVM C++ Standard Library makes use of POSIX and GNU C extension functions
		# in its headers.
		zephyr_compile_definitions($<$<COMPILE_LANGUAGE:CXX>:_POSIX_C_SOURCE=200809L>)
		zephyr_compile_definitions($<$<COMPILE_LANGUAGE:CXX>:_XOPEN_SOURCE=700>)
		zephyr_compile_definitions($<$<COMPILE_LANGUAGE:CXX>:_GNU_SOURCE>)
		endif()

		add_subdirectory(abi)

		add_subdirectory_ifdef(CONFIG_MINIMAL_LIBCPP minimal)

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