#ifndef _BSD_EXTENSION    This header file is an extension to ANSI/POSIX#endif #ifndef __BSD_H_#define __BSD_H_#pragma src "/sys/src/ape/lib/bsd"#pragma lib "/$M/lib/ape/libbsd.a" #ifndef __TYPES_H#include <sys/types.h>#endif #ifdef __cplusplusextern "C" {#endif #ifndef _SIZE_T#define _SIZE_Ttypedef unsigned long size_t;#endif /* ifndefs because X11 stuff (ugh) */#ifndef bcopyextern void	bcopy(void*, void*, size_t);#endif#ifndef bcmpextern int	bcmp(void*, void*, size_t);#endif#ifndef bzeroextern void	bzero(void*, size_t);#endifextern int	ffs(unsigned int);extern void	bhappy(void*);extern int	rresvport(int*);extern int	rcmd(char**, int, char*, char*, char*, int*);extern char*	strdup(char*);extern int	strcasecmp(char*, char*);extern int 	putenv(char*);extern int	strncasecmp(char*, char*,int);extern void* memccpy(void*, void*, int, size_t); extern int	getopt(int, char**, char*);extern int	opterr;extern int	optind;extern int	optopt;extern char	*optarg;extern char	*mktemp(char *);extern char	*sys_errlist[];extern int		sys_nerr; #ifdef __cplusplus}#endif #endif