[win32] various cleanups so that B can be built as "just another extension"

 - export symbols needed for building B
 - bset_obj_store() is needed by byterun(), so define it there instead
   of at B.xs, and export it
 - freadpv() is only used in B.xs, so move it there
 - byte*.h are now included by perl.h
 - regenerate embed*.h

p4raw-id: //depot/win32/perl@589

1 files changed, 1 insertions, 7 deletions

diff --git a/byterun.h b/byterun.h
index f7185c7b0a..edc043ddf1 100644
--- a/byterun.h
+++ b/byterun.h
@@ -15,18 +15,12 @@ struct bytestream {
     int (*fread)(char *, size_t, size_t, void*);
     void (*freadpv)(U32, void*);
 };
-void freadpv _((U32, void *));
 void byterun _((struct bytestream));
 #else
 void byterun _((FILE *));
 #endif /* INDIRECT_BGET_MACROS */
 
-#ifndef PATCHLEVEL
-#include "patchlevel.h"
-#endif
-#if PATCHLEVEL < 4 || (PATCHLEVEL == 4 && SUBVERSION < 50)
-#define dTHR extern int errno
-#endif
+void *bset_obj_store _((void *, I32));
 
 enum {
     INSN_RET,			/* 0 */