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53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
/*
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* SPDX-FileCopyrightText: 2022 Gunar Schorcht
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* SPDX-License-Identifier: LGPL-2.1-only
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*/
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#pragma once
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/**
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* @ingroup cpu_esp32
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* @{
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*
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* @file
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* @brief Wrapper for sys/features.h
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*
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* @author Gunar Schorcht <gunar@schorcht.net>
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*
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* This file is a wrapper for sys/features.h to revert default definitions that
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* lead to compilation problems with newer GCC/newlib versions, see below.
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*/
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#ifndef DOXYGEN
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include_next <sys/features.h>
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/*
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* When using a GCC version with POSIX thread support enabled, as is the
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* case with Espressif's precompiled toolchains, the `_POSIX_THREAD`
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* definition has to be reverted to prevent the inclusion of newlib's
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* POXIS header files in system headers to avoid compilation errors.
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* The reason is that RIOT uses its own `pthread` implementation, but
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* its type declarations are not fully compatible with those in
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* `sys/_pthreadtypes.h`.
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*/
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#undef _POSIX_THREADS
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/*
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* To avoid type conflicts between the `pthread_rwlockattr_t` definition
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* in RIOT's `pthread` implementation and newlibc's `sys/_pthreadtypes.h`,
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* the macro `_POSIX_READER_WRITER_LOCKS` must be undefined.
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*/
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#undef _POSIX_READER_WRITER_LOCKS
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#ifdef __cplusplus
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}
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#endif
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#endif /* DOXYGEN */
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/** @} */
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