Move the last of the __DBINTERFACE_PRIVATE bits from <db.h> to libc's wrapper

and eliminate the now superfluous -D option
ok kettenis@ millert@

src/include/db.h

@@ -1,4 +1,4 @@
-/*	$OpenBSD: db.h,v 1.11 2015/09/05 11:28:35 guenther Exp $	*/
+/*	$OpenBSD: db.h,v 1.12 2015/10/17 21:48:42 guenther Exp $	*/
 /*	$NetBSD: db.h,v 1.13 1994/10/26 00:55:48 cgd Exp $	*/
 
 /*-
@@ -155,56 +155,6 @@ typedef struct {
 	char	*bfname;		/* btree file name */ 
 } RECNOINFO;
 
-#ifdef __DBINTERFACE_PRIVATE
-/*
- * Little endian <==> big endian 32-bit swap macros.
- *	M_32_SWAP	swap a memory location
- *	P_32_SWAP	swap a referenced memory location
- *	P_32_COPY	swap from one location to another
- */
-#define	M_32_SWAP(a) {							\
-	u_int32_t _tmp = a;						\
-	((char *)&a)[0] = ((char *)&_tmp)[3];				\
-	((char *)&a)[1] = ((char *)&_tmp)[2];				\
-	((char *)&a)[2] = ((char *)&_tmp)[1];				\
-	((char *)&a)[3] = ((char *)&_tmp)[0];				\
-}
-#define	P_32_SWAP(a) {							\
-	u_int32_t _tmp = *(u_int32_t *)a;				\
-	((char *)a)[0] = ((char *)&_tmp)[3];				\
-	((char *)a)[1] = ((char *)&_tmp)[2];				\
-	((char *)a)[2] = ((char *)&_tmp)[1];				\
-	((char *)a)[3] = ((char *)&_tmp)[0];				\
-}
-#define	P_32_COPY(a, b) {						\
-	((char *)&(b))[0] = ((char *)&(a))[3];				\
-	((char *)&(b))[1] = ((char *)&(a))[2];				\
-	((char *)&(b))[2] = ((char *)&(a))[1];				\
-	((char *)&(b))[3] = ((char *)&(a))[0];				\
-}
-
-/*
- * Little endian <==> big endian 16-bit swap macros.
- *	M_16_SWAP	swap a memory location
- *	P_16_SWAP	swap a referenced memory location
- *	P_16_COPY	swap from one location to another
- */
-#define	M_16_SWAP(a) {							\
-	u_int16_t _tmp = a;						\
-	((char *)&a)[0] = ((char *)&_tmp)[1];				\
-	((char *)&a)[1] = ((char *)&_tmp)[0];				\
-}
-#define	P_16_SWAP(a) {							\
-	u_int16_t _tmp = *(u_int16_t *)a;				\
-	((char *)a)[0] = ((char *)&_tmp)[1];				\
-	((char *)a)[1] = ((char *)&_tmp)[0];				\
-}
-#define	P_16_COPY(a, b) {						\
-	((char *)&(b))[0] = ((char *)&(a))[1];				\
-	((char *)&(b))[1] = ((char *)&(a))[0];				\
-}
-#endif
-
 __BEGIN_DECLS
 DB *dbopen(const char *, int, int, DBTYPE, const void *);
 __END_DECLS