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RIOT/cpu/esp32/include/sys/features.h

51 lines
1.2 KiB
C

/*
* Copyright (C) 2022 Gunar Schorcht
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup cpu_esp32
* @{
*
* @file
* @brief Wrapper for sys/features.h
*
* @author Gunar Schorcht <gunar@schorcht.net>
*
* This file is a wrapper for sys/features.h to revert default definitions that
* lead to compilation problems with newer GCC/newlib versions, see below.
*/
#ifndef SYS_FEATURES_H
#define SYS_FEATURES_H
#ifndef DOXYGEN
#ifdef __cplusplus
extern "C" {
#endif
#include_next <sys/features.h>
/*
* When using a GCC version with POSIX thread support enabled, as is the
* case with Espressif's precompiled toolchains, the `_POSIX_THREAD`
* definition has to be reverted to prevent the inclusion of newlib's
* POXIS header files in system headers to avoid compilation errors.
* The reason is that RIOT uses its own `pthread` implementation, but
* its type declarations are not fully compatible with those in
* `sys/_pthreadtypes.h`.
*/
#undef _POSIX_THREADS
#ifdef __cplusplus
}
#endif
#endif /* DOXYGEN */
#endif /* SYS_FEATURES_H */
/** @} */