Restore backwards compatibility for binaries referencing the main

Obj_Entry.

libexec/ld.elf_so/rtld.h

@@ -1,4 +1,4 @@
-/*	$NetBSD: rtld.h,v 1.87 2010/01/16 10:37:51 skrll Exp $	 */
+/*	$NetBSD: rtld.h,v 1.88 2010/01/17 08:04:20 skrll Exp $	 */
 
 /*
  * Copyright 1996 John D. Polstra.
@@ -130,7 +130,6 @@ typedef struct Struct_Obj_Entry {
 	caddr_t         entry;		/* Entry point */
 	const Elf_Phdr *__junk001;
 	size_t		pathlen;	/* Pathname length */
-	void		*ehdr;
 
 	/* Items from the dynamic section. */
 	Elf_Addr       *pltgot;		/* PLTGOT table */
@@ -195,6 +194,8 @@ typedef struct Struct_Obj_Entry {
 	Objlist         dagmembers;	/* DAG has these members (%) */
 	dev_t           dev;		/* Object's filesystem's device */
 	ino_t           ino;		/* Object's inode number */
+
+	void		*ehdr;
 } Obj_Entry;
 
 #if defined(_RTLD_SOURCE)