+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+void *memchr __P((const void *, int, size_t));
+int memcmp __P((const void *, const void *, size_t));
+void *memcpy __P((void *, const void *, size_t));
+void *memmove __P((void *, const void *, size_t));
+void *memset __P((void *, int, size_t));
+char *strcat __P((char *, const char *));
+char *strchr __P((const char *, int));
+int strcmp __P((const char *, const char *));
+int strcoll __P((const char *, const char *));
+char *strcpy __P((char *, const char *));
+size_t strcspn __P((const char *, const char *));
+char *strerror __P((int));
+size_t strlen __P((const char *));
+char *strncat __P((char *, const char *, size_t));
+int strncmp __P((const char *, const char *, size_t));
+char *strncpy __P((char *, const char *, size_t));
+char *strpbrk __P((const char *, const char *));
+char *strrchr __P((const char *, int));
+size_t strspn __P((const char *, const char *));
+char *strstr __P((const char *, const char *));
+char *strtok __P((char *, const char *));
+size_t strxfrm __P((char *, const char *, size_t));
+
+/* Nonstandard routines */
+#ifndef _ANSI_SOURCE
+int bcmp __P((const void *, const void *, size_t));
+void bcopy __P((const void *, void *, size_t));
+void bzero __P((void *, size_t));
+int ffs __P((int));
+char *index __P((const char *, int));
+void *memccpy __P((void *, const void *, int, size_t));
+char *rindex __P((const char *, int));
+int strcasecmp __P((const char *, const char *));
+char *strdup __P((const char *));
+void strmode __P((int, char *));
+int strncasecmp __P((const char *, const char *, size_t));
+char *strsep __P((char **, const char *));
+void swab __P((const void *, void *, size_t));
+#endif
+__END_DECLS