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This file defines the macro "OS" which represents the system we are compiling on.
- If the macro LINUX is defined then OS is equal to UNIX_OS.
- If the macro SUN is defined then OS is equal to UNIX_OS.
- If the macro NT is defined that OS is equal to WINDOWS_OS.
- If no target is specified, then the compilation aborts.
#ifndef DEPEND_HD
#undef OS
#define OS -1
#define UNIX_OS 1
#define WINDOWS_OS 2
/***************************************************/
/* Defines LINUX to compile for a Linux target */
/* Defines SUN to compile for a SUN target */
/* Defines NT to compile on a NT target */
/***************************************************/
#ifdef LINUX
#if OS != -1
#error "You can specify only one OS"
#endif
#undef OS
#define OS UNIX_OS
#endif
#ifdef SUN
#if OS != -1
#error "You can specify only one OS"
#endif
#undef OS
#define OS UNIX_OS
#endif
#ifdef NT
#if OS != -1
#error "You can specify only one OS"
#endif
#undef OS
#define OS WINDOWS_OS
#endif
#if OS == -1
#error "You must specify one target (LINUX, SUN, NT)"
#endif
#define DEPEND_HD
#endif
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