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/*******************************************************************************
* syspovconfig_linux.h
*
* This file contains Unix flavor-specific defines for compiling the VFE
* on GNU/Linux systems.
*
* ---------------------------------------------------------------------------
* Persistence of Vision Ray Tracer ('POV-Ray') version 3.7.
* Copyright 1991-2013 Persistence of Vision Raytracer Pty. Ltd.
*
* POV-Ray is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* POV-Ray is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* ---------------------------------------------------------------------------
* POV-Ray is based on the popular DKB raytracer version 2.12.
* DKBTrace was originally written by David K. Buck.
* DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
* ---------------------------------------------------------------------------
* $File: //depot/povray/smp/vfe/unix/syspovconfig_linux.h $
* $Revision: #1 $
* $Change: 6129 $
* $DateTime: 2013/11/25 11:09:30 $
* $Author: clipka $
*******************************************************************************/
#ifndef __SYSPOVCONFIG_LINUX_H__
#define __SYSPOVCONFIG_LINUX_H__
#include <unistd.h>
// lseek64 is natively supported on GNU/Linux systems.
#if (defined(_POSIX_V6_LPBIG_OFFBIG) && _POSIX_V6_LPBIG_OFFBIG > 0) \
|| (defined(_POSIX_V6_LP64_OFF64) && _POSIX_V6_LP64_OFF64 > 0)
// long is at least 64 bits.
#define POV_LONG long
#elif defined(_POSIX_V6_ILP32_OFFBIG) || defined(_POSIX_V6_ILP32_OFF32)
// long is 32 bits.
#define POV_LONG long long
#else
// Unable to detect long size at compile-time, assuming less than 64 bits.
#define POV_LONG long long
#endif
#define DECLARE_THREAD_LOCAL_PTR(ptrType, ptrName) __thread ptrType *ptrName
#define IMPLEMENT_THREAD_LOCAL_PTR(ptrType, ptrName, ignore) __thread ptrType *ptrName
#define GET_THREAD_LOCAL_PTR(ptrName) (ptrName)
#define SET_THREAD_LOCAL_PTR(ptrName, ptrValue) (ptrName = ptrValue)
#endif
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