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/*
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* libc_compat.h - implement defs/macros missing from some libcs
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*
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* Copyright (C) 1999-2000 Andrew Henroid
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* Copyright (C) 2001 Sun Microsystems
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* Portions Copyright (C) 2004 Tim Hockin (thockin@hockin.org)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef LIBC_COMPAT_H__
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#define LIBC_COMPAT_H__
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/* Evaluate EXPRESSION, and repeat as long as it returns -1 with `errno'
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set to EINTR. This macro is present on glibc/uclibc but may not be in other cases. */
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#ifndef ____GLIBC__
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#ifndef TEMP_FAILURE_RETRY
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#define TEMP_FAILURE_RETRY(expression) \
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(__extension__ \
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({ long int __result; \
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do __result = (long int) (expression); \
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while (__result == -1L && errno == EINTR); \
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__result; }))
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#endif
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#endif /* __GLIBC__ */
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#endif /* LIBC_COMPAT_H__ */
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