-#ifdef CONFIG_FEATURE_BUFFERS_GO_ON_STACK
-#define RESERVE_CONFIG_BUFFER(buffer,len) char buffer[len]
-#define RESERVE_CONFIG_UBUFFER(buffer,len) unsigned char buffer[len]
-#define RELEASE_CONFIG_BUFFER(buffer) ((void)0)
-#else
-#ifdef CONFIG_FEATURE_BUFFERS_GO_IN_BSS
-#define RESERVE_CONFIG_BUFFER(buffer,len) static char buffer[len]
-#define RESERVE_CONFIG_UBUFFER(buffer,len) static unsigned char buffer[len]
-#define RELEASE_CONFIG_BUFFER(buffer) ((void)0)
-#else
-#define RESERVE_CONFIG_BUFFER(buffer,len) char *buffer=xmalloc(len)
-#define RESERVE_CONFIG_UBUFFER(buffer,len) unsigned char *buffer=xmalloc(len)
-#define RELEASE_CONFIG_BUFFER(buffer) free (buffer)
-#endif
-#endif
-
-
-/* Bit map related macros -- libc5 doens't provide these... sigh. */
-#ifndef setbit
-#define NBBY CHAR_BIT
-#define setbit(a,i) ((a)[(i)/NBBY] |= 1<<((i)%NBBY))
-#define clrbit(a,i) ((a)[(i)/NBBY] &= ~(1<<((i)%NBBY)))
-#define isset(a,i) ((a)[(i)/NBBY] & (1<<((i)%NBBY)))
-#define isclr(a,i) (((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0)
-#endif
-
-#ifndef RB_POWER_OFF
-/* Stop system and switch power off if possible. */
-#define RB_POWER_OFF 0x4321fedc
-#endif
-
-/* Try to pull in PATH_MAX */
-#include <limits.h>
-
-/* for PATH_MAX on systems that don't have it in limits.h */
-#include <sys/param.h>
-#ifndef PATH_MAX
-#define PATH_MAX 256
-#endif
-