Integrate win32 branch back into mainline.

p4raw-id: //depot/perl@262

diff --cc op.c
index bc672f7,bc672f7..21dc249
--- 1/op.c
--- 2/op.c
+++ b/op.c
@@@ -4679,7 -4679,7 +4679,7 @@@ peep(register OP *o
        case OP_LC:
        case OP_LCFIRST:
        case OP_QUOTEMETA:
--          if (o->op_next->op_type == OP_STRINGIFY)
++          if (o->op_next && o->op_next->op_type == OP_STRINGIFY)
                null(o->op_next);
            o->op_seq = op_seqmax++;
            break;

diff --cc perl.h
index 2d49fc3,a2f5630..5ee7591
--- 1/perl.h
--- 2/perl.h
+++ b/perl.h
@@@ -39,13 -42,13 +42,7 @@@
  #  define EXTERN_C
  #endif
  
--#if defined(USE_THREADS) /* && !defined(PERL_CORE) && !defined(PERLDLL) */
--#ifndef CRIPPLED_CC
--#define CRIPPLED_CC
--#endif
--#endif
--
--#ifdef OP_IN_REGISTER
++ifdef OP_IN_REGISTER
  #  ifdef __GNUC__
  #    define stringify_immed(s) #s
  #    define stringify(s) stringify_immed(s)