qzdoom/src/gl/system/gl_system.h

#ifndef __GL_PCH_H
#define __GL_PCH_H

#include <math.h>
#include <float.h>
#include <limits.h>
#include <stdlib.h>
#include <stdio.h>
//#include <direct.h>
#include <stddef.h>
#include <string.h>
#include <ctype.h>
#include <limits.h>
#include <assert.h>
#include <errno.h>
#include <stdarg.h>
#include <signal.h>
#if !defined(__APPLE__) && !defined(__FreeBSD__)
#include <malloc.h>
#endif
#include <time.h>

#ifdef _MSC_VER
#define    F_OK    0    /* Check for file existence */
#define    W_OK    2    /* Check for write permission */
#define    R_OK    4    /* Check for read permission */
#include <io.h>
#else
#include <unistd.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

//GL headers
#include "gl_load.h"

#if defined(__APPLE__)
	#include <OpenGL/OpenGL.h>
#endif



#ifdef _MSC_VER
#pragma warning(disable : 4244)     // MIPS
#pragma warning(disable : 4136)     // X86
#pragma warning(disable : 4051)     // ALPHA

#pragma warning(disable : 4018)     // signed/unsigned mismatch
#pragma warning(disable : 4305)     // truncate from double to float
#endif

#endif //__GL_PCH_H