From: Nick Ing-Simmons <nik@tiuk.ti.com>
Date: Fri, 31 Oct 1997 23:54:01 +0000 (+0000)
Subject: Further ANSI changes now builds and passes (most) tests
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=f0f333f45536802923a359d930d1dcfd5b4589ea;p=p5sagit%2Fp5-mst-13.2.git

Further ANSI changes now builds and passes (most) tests
with gcc -x c++.

p4raw-id: //depot/ansiperl@196
---

diff --git a/INTERN.h b/INTERN.h
index ba71c2f..22e42c5 100644
--- a/INTERN.h
+++ b/INTERN.h
@@ -23,11 +23,18 @@
 #  define EXTCONST globaldef {"$GLOBAL_RO_VARS"} readonly
 #  define dEXTCONST globaldef {"$GLOBAL_RO_VARS"} readonly
 #else
+#  ifdef __cplusplus
+#   define EXT
+#   define dEXT
+#   define EXTCONST extern const
+#   define dEXTCONST const
+#else
 #  define EXT
 #  define dEXT
 #  define EXTCONST const
 #  define dEXTCONST const
 #endif
+#endif
 
 #undef INIT
 #define INIT(x) = x
diff --git a/embed.h b/embed.h
index 5f3b765..f50fbbe 100644
--- a/embed.h
+++ b/embed.h
@@ -282,6 +282,7 @@
 #define inc_amg			Perl_inc_amg
 #define ingroup			Perl_ingroup
 #define init_stacks		Perl_init_stacks
+#define init_thread_intern	Perl_init_thread_intern
 #define instr			Perl_instr
 #define intro_my		Perl_intro_my
 #define intuit_more		Perl_intuit_more
@@ -479,6 +480,8 @@
 #define nomemok			Perl_nomemok
 #define nomethod_amg		Perl_nomethod_amg
 #define not_amg			Perl_not_amg
+#define nthreads		Perl_nthreads
+#define nthreads_cond		Perl_nthreads_cond
 #define numer_amg		Perl_numer_amg
 #define numeric_local		Perl_numeric_local
 #define numeric_name		Perl_numeric_name
@@ -1090,6 +1093,8 @@
 #define taint_env		Perl_taint_env
 #define taint_proper		Perl_taint_proper
 #define thisexpr		Perl_thisexpr
+#define thr_key			Perl_thr_key
+#define threads_mutex		Perl_threads_mutex
 #define timesbuf		Perl_timesbuf
 #define tokenbuf		Perl_tokenbuf
 #define too_few_arguments	Perl_too_few_arguments
diff --git a/ext/DynaLoader/dl_dlopen.xs b/ext/DynaLoader/dl_dlopen.xs
index fef4530..2459205 100644
--- a/ext/DynaLoader/dl_dlopen.xs
+++ b/ext/DynaLoader/dl_dlopen.xs
@@ -206,7 +206,7 @@ dl_install_xsub(perl_name, symref, filename="$Package")
     CODE:
     DLDEBUG(2,PerlIO_printf(PerlIO_stderr(), "dl_install_xsub(name=%s, symref=%lx)\n",
 		perl_name, (unsigned long) symref));
-    ST(0)=sv_2mortal(newRV((SV*)newXS(perl_name, (void(*)())symref, filename)));
+    ST(0)=sv_2mortal(newRV((SV*)newXS(perl_name, (void(*)_((CV *)))symref, filename)));
 
 
 char *
diff --git a/ext/Fcntl/Fcntl.xs b/ext/Fcntl/Fcntl.xs
index 9034031..251f3f4 100644
--- a/ext/Fcntl/Fcntl.xs
+++ b/ext/Fcntl/Fcntl.xs
@@ -23,17 +23,14 @@
 */
 
 static int
-not_here(s)
-char *s;
+not_here(char *s)
 {
     croak("%s not implemented on this architecture", s);
     return -1;
 }
 
 static double
-constant(name, arg)
-char *name;
-int arg;
+constant(char *name, int arg)
 {
     errno = 0;
     switch (*name) {
diff --git a/ext/GDBM_File/GDBM_File.xs b/ext/GDBM_File/GDBM_File.xs
index a423c88..d3305ec 100644
--- a/ext/GDBM_File/GDBM_File.xs
+++ b/ext/GDBM_File/GDBM_File.xs
@@ -20,11 +20,10 @@ typedef GDBM_FILE GDBM_File;
 
 typedef datum gdatum;
 
-typedef void (*FATALFUNC)();
+typedef void (*FATALFUNC)(...);
 
 static int
-not_here(s)
-char *s;
+not_here(char *s)
 {
     croak("GDBM_File::%s not implemented on this architecture", s);
     return -1;
@@ -41,9 +40,7 @@ char *s;
 #endif
 
 static double
-constant(name, arg)
-char *name;
-int arg;
+constant(char *name, int arg)
 {
     errno = 0;
     switch (*name) {
diff --git a/ext/IO/IO.xs b/ext/IO/IO.xs
index e558d5c..f226a79 100644
--- a/ext/IO/IO.xs
+++ b/ext/IO/IO.xs
@@ -22,17 +22,14 @@ typedef FILE * OutputStream;
 #endif
 
 static int
-not_here(s)
-char *s;
+not_here(char *s)
 {
     croak("%s not implemented on this architecture", s);
     return -1;
 }
 
 static bool
-constant(name, pval)
-char *name;
-IV *pval;
+constant(char *name, IV *pval)
 {
     switch (*name) {
     case '_':
diff --git a/ext/Opcode/Opcode.xs b/ext/Opcode/Opcode.xs
index 8307ade..bed7099 100644
--- a/ext/Opcode/Opcode.xs
+++ b/ext/Opcode/Opcode.xs
@@ -24,7 +24,7 @@ static SV  *get_op_bitspec _((char *opname, STRLEN len, int fatal));
  */
 
 static void
-op_names_init()
+op_names_init(void)
 {
     int i;
     STRLEN len;
@@ -58,10 +58,7 @@ op_names_init()
  */
 
 static void
-put_op_bitspec(optag, len, mask)
-    char *optag;
-    STRLEN len;
-    SV *mask;
+put_op_bitspec(char *optag, STRLEN len, SV *mask)
 {
     SV **svp;
     verify_opset(mask,1);
@@ -82,10 +79,7 @@ put_op_bitspec(optag, len, mask)
  */
 
 static SV *
-get_op_bitspec(opname, len, fatal)
-    char *opname;
-    STRLEN len;
-    int fatal;
+get_op_bitspec(char *opname, STRLEN len, int fatal)
 {
     SV **svp;
     if (!len)
@@ -108,8 +102,7 @@ get_op_bitspec(opname, len, fatal)
 
 
 static SV *
-new_opset(old_opset)
-    SV *old_opset;
+new_opset(SV *old_opset)
 {
     SV *opset;
     if (old_opset) {
@@ -128,9 +121,7 @@ new_opset(old_opset)
 
 
 static int
-verify_opset(opset, fatal)
-    SV *opset;
-    int fatal;
+verify_opset(SV *opset, int fatal)
 {
     char *err = Nullch;
     if      (!SvOK(opset))              err = "undefined";
@@ -144,11 +135,7 @@ verify_opset(opset, fatal)
 
 
 static void
-set_opset_bits(bitmap, bitspec, on, opname)
-    char *bitmap;
-    SV *bitspec;
-    int on;
-    char *opname;
+set_opset_bits(char *bitmap, SV *bitspec, int on, char *opname)
 {
     if (SvIOK(bitspec)) {
 	int myopcode = SvIV(bitspec);
@@ -182,8 +169,7 @@ set_opset_bits(bitmap, bitspec, on, opname)
 
 
 static void
-opmask_add(opset)	/* THE ONLY FUNCTION TO EDIT op_mask ITSELF	*/
-    SV *opset;
+opmask_add(SV *opset)	/* THE ONLY FUNCTION TO EDIT op_mask ITSELF	*/
 {
     int i,j;
     char *bitmask;
@@ -210,9 +196,7 @@ opmask_add(opset)	/* THE ONLY FUNCTION TO EDIT op_mask ITSELF	*/
 }
 
 static void
-opmask_addlocal(opset, op_mask_buf) /* Localise op_mask then opmask_add() */
-    SV *opset;
-    char *op_mask_buf;
+opmask_addlocal(SV *opset, char *op_mask_buf) /* Localise op_mask then opmask_add() */
 {
     char *orig_op_mask = op_mask;
     SAVEPPTR(op_mask);
diff --git a/ext/POSIX/POSIX.xs b/ext/POSIX/POSIX.xs
index 0e53a49..57efb83 100644
--- a/ext/POSIX/POSIX.xs
+++ b/ext/POSIX/POSIX.xs
@@ -275,17 +275,14 @@ init_tm(ptm)		/* see mktime, strftime and asctime	*/
 #endif
 
 static int
-not_here(s)
-char *s;
+not_here(char *s)
 {
     croak("POSIX::%s not implemented on this architecture", s);
     return -1;
 }
 
 static double
-constant(name, arg)
-char *name;
-int arg;
+constant(char *name, int arg)
 {
     errno = 0;
     switch (*name) {
diff --git a/ext/SDBM_File/sdbm/hash.c b/ext/SDBM_File/sdbm/hash.c
index eb585ac..514bb5e 100644
--- a/ext/SDBM_File/sdbm/hash.c
+++ b/ext/SDBM_File/sdbm/hash.c
@@ -17,9 +17,7 @@
  *      65587   even better. 
  */
 long
-sdbm_hash(str, len)
-register char *str;
-register int len;
+sdbm_hash(register char *str, register int len)
 {
 	register unsigned long n = 0;
 
diff --git a/ext/SDBM_File/sdbm/pair.c b/ext/SDBM_File/sdbm/pair.c
index 23bbfe9..e1a6ee6 100644
--- a/ext/SDBM_File/sdbm/pair.c
+++ b/ext/SDBM_File/sdbm/pair.c
@@ -44,9 +44,7 @@ static int seepair proto((char *, int, char *, int));
  */
 
 int
-fitpair(pag, need)
-char *pag;
-int need;
+fitpair(char *pag, int need)
 {
 	register int n;
 	register int off;
@@ -63,10 +61,7 @@ int need;
 }
 
 void
-putpair(pag, key, val)
-char *pag;
-datum key;
-datum val;
+putpair(char *pag, datum key, datum val)
 {
 	register int n;
 	register int off;
@@ -92,9 +87,7 @@ datum val;
 }
 
 datum
-getpair(pag, key)
-char *pag;
-datum key;
+getpair(char *pag, datum key)
 {
 	register int i;
 	register int n;
@@ -114,9 +107,7 @@ datum key;
 
 #ifdef SEEDUPS
 int
-duppair(pag, key)
-char *pag;
-datum key;
+duppair(char *pag, datum key)
 {
 	register short *ino = (short *) pag;
 	return ino[0] > 0 && seepair(pag, ino[0], key.dptr, key.dsize) > 0;
@@ -124,9 +115,7 @@ datum key;
 #endif
 
 datum
-getnkey(pag, num)
-char *pag;
-int num;
+getnkey(char *pag, int num)
 {
 	datum key;
 	register int off;
@@ -145,9 +134,7 @@ int num;
 }
 
 int
-delpair(pag, key)
-char *pag;
-datum key;
+delpair(char *pag, datum key)
 {
 	register int n;
 	register int i;
@@ -219,11 +206,7 @@ datum key;
  * return 0 if not found.
  */
 static int
-seepair(pag, n, key, siz)
-char *pag;
-register int n;
-register char *key;
-register int siz;
+seepair(char *pag, register int n, register char *key, register int siz)
 {
 	register int i;
 	register int off = PBLKSIZ;
@@ -239,10 +222,7 @@ register int siz;
 }
 
 void
-splpage(pag, new, sbit)
-char *pag;
-char *new;
-long sbit;
+splpage(char *pag, char *New, long int sbit)
 {
 	datum key;
 	datum val;
@@ -254,7 +234,7 @@ long sbit;
 
 	(void) memcpy(cur, pag, PBLKSIZ);
 	(void) memset(pag, 0, PBLKSIZ);
-	(void) memset(new, 0, PBLKSIZ);
+	(void) memset(New, 0, PBLKSIZ);
 
 	n = ino[0];
 	for (ino++; n > 0; ino += 2) {
@@ -265,14 +245,14 @@ long sbit;
 /*
  * select the page pointer (by looking at sbit) and insert
  */
-		(void) putpair((exhash(key) & sbit) ? new : pag, key, val);
+		(void) putpair((exhash(key) & sbit) ? New : pag, key, val);
 
 		off = ino[1];
 		n -= 2;
 	}
 
 	debug(("%d split %d/%d\n", ((short *) cur)[0] / 2, 
-	       ((short *) new)[0] / 2,
+	       ((short *) New)[0] / 2,
 	       ((short *) pag)[0] / 2));
 }
 
@@ -283,8 +263,7 @@ long sbit;
  * this could be made more rigorous.
  */
 int
-chkpage(pag)
-char *pag;
+chkpage(char *pag)
 {
 	register int n;
 	register int off;
diff --git a/ext/SDBM_File/sdbm/sdbm.c b/ext/SDBM_File/sdbm/sdbm.c
index c2d9cbd..7fbba0f 100644
--- a/ext/SDBM_File/sdbm/sdbm.c
+++ b/ext/SDBM_File/sdbm/sdbm.c
@@ -39,7 +39,7 @@ extern int errno;
 
 extern Malloc_t malloc proto((MEM_SIZE));
 extern Free_t free proto((Malloc_t));
-extern Off_t lseek();
+extern Off_t lseek(int, off_t, int);
 #endif
 
 /*
@@ -75,10 +75,7 @@ static long masks[] = {
 datum nullitem = {NULL, 0};
 
 DBM *
-sdbm_open(file, flags, mode)
-register char *file;
-register int flags;
-register int mode;
+sdbm_open(register char *file, register int flags, register int mode)
 {
 	register DBM *db;
 	register char *dirname;
@@ -92,7 +89,7 @@ register int mode;
  */
 	n = strlen(file) * 2 + strlen(DIRFEXT) + strlen(PAGFEXT) + 2;
 
-	if ((dirname = malloc((unsigned) n)) == NULL)
+	if ((dirname = (char *) malloc((unsigned) n)) == NULL)
 		return errno = ENOMEM, (DBM *) NULL;
 /*
  * build the file names
@@ -107,11 +104,7 @@ register int mode;
 }
 
 DBM *
-sdbm_prep(dirname, pagname, flags, mode)
-char *dirname;
-char *pagname;
-int flags;
-int mode;
+sdbm_prep(char *dirname, char *pagname, int flags, int mode)
 {
 	register DBM *db;
 	struct stat dstat;
@@ -170,8 +163,7 @@ int mode;
 }
 
 void
-sdbm_close(db)
-register DBM *db;
+sdbm_close(register DBM *db)
 {
 	if (db == NULL)
 		errno = EINVAL;
@@ -183,9 +175,7 @@ register DBM *db;
 }
 
 datum
-sdbm_fetch(db, key)
-register DBM *db;
-datum key;
+sdbm_fetch(register DBM *db, datum key)
 {
 	if (db == NULL || bad(key))
 		return errno = EINVAL, nullitem;
@@ -197,9 +187,7 @@ datum key;
 }
 
 int
-sdbm_delete(db, key)
-register DBM *db;
-datum key;
+sdbm_delete(register DBM *db, datum key)
 {
 	if (db == NULL || bad(key))
 		return errno = EINVAL, -1;
@@ -223,11 +211,7 @@ datum key;
 }
 
 int
-sdbm_store(db, key, val, flags)
-register DBM *db;
-datum key;
-datum val;
-int flags;
+sdbm_store(register DBM *db, datum key, datum val, int flags)
 {
 	int need;
 	register long hash;
@@ -285,22 +269,19 @@ int flags;
  * giving up.
  */
 static int
-makroom(db, hash, need)
-register DBM *db;
-long hash;
-int need;
+makroom(register DBM *db, long int hash, int need)
 {
 	long newp;
 	char twin[PBLKSIZ];
 	char *pag = db->pagbuf;
-	char *new = twin;
+	char *New = twin;
 	register int smax = SPLTMAX;
 
 	do {
 /*
  * split the current page
  */
-		(void) splpage(pag, new, db->hmask + 1);
+		(void) splpage(pag, New, db->hmask + 1);
 /*
  * address of the new page
  */
@@ -319,10 +300,10 @@ int need;
 			    || write(db->pagf, db->pagbuf, PBLKSIZ) < 0)
 				return 0;
 			db->pagbno = newp;
-			(void) memcpy(pag, new, PBLKSIZ);
+			(void) memcpy(pag, New, PBLKSIZ);
 		}
 		else if (lseek(db->pagf, OFF_PAG(newp), SEEK_SET) < 0
-			 || write(db->pagf, new, PBLKSIZ) < 0)
+			 || write(db->pagf, New, PBLKSIZ) < 0)
 			return 0;
 
 		if (!setdbit(db, db->curbit))
@@ -363,8 +344,7 @@ int need;
  * deletions aren't taken into account. (ndbm bug)
  */
 datum
-sdbm_firstkey(db)
-register DBM *db;
+sdbm_firstkey(register DBM *db)
 {
 	if (db == NULL)
 		return errno = EINVAL, nullitem;
@@ -382,8 +362,7 @@ register DBM *db;
 }
 
 datum
-sdbm_nextkey(db)
-register DBM *db;
+sdbm_nextkey(register DBM *db)
 {
 	if (db == NULL)
 		return errno = EINVAL, nullitem;
@@ -394,9 +373,7 @@ register DBM *db;
  * all important binary trie traversal
  */
 static int
-getpage(db, hash)
-register DBM *db;
-register long hash;
+getpage(register DBM *db, register long int hash)
 {
 	register int hbit;
 	register long dbit;
@@ -435,9 +412,7 @@ register long hash;
 }
 
 static int
-getdbit(db, dbit)
-register DBM *db;
-register long dbit;
+getdbit(register DBM *db, register long int dbit)
 {
 	register long c;
 	register long dirb;
@@ -458,9 +433,7 @@ register long dbit;
 }
 
 static int
-setdbit(db, dbit)
-register DBM *db;
-register long dbit;
+setdbit(register DBM *db, register long int dbit)
 {
 	register long c;
 	register long dirb;
@@ -494,8 +467,7 @@ register long dbit;
  * the page, try the next page in sequence
  */
 static datum
-getnext(db)
-register DBM *db;
+getnext(register DBM *db)
 {
 	datum key;
 
diff --git a/ext/SDBM_File/sdbm/sdbm.h b/ext/SDBM_File/sdbm/sdbm.h
index fdd9165..fc0ea87 100644
--- a/ext/SDBM_File/sdbm/sdbm.h
+++ b/ext/SDBM_File/sdbm/sdbm.h
@@ -183,6 +183,10 @@ extern long sdbm_hash proto((char *, int));
 
 #ifdef I_MEMORY
 #include <memory.h>
+#endif      
+
+#ifdef __cplusplus
+#define HAS_MEMCPY
 #endif
 
 #ifdef HAS_MEMCPY
@@ -239,7 +243,9 @@ extern long sdbm_hash proto((char *, int));
 #	else
 #	    define memcmp Perl_my_memcmp
 #	endif
+#ifndef __cplusplus
 	extern int memcmp proto((char*, char*, int));
+#endif
 #   endif
 #endif /* HAS_MEMCMP */
 
diff --git a/ext/SDBM_File/sdbm/util.c b/ext/SDBM_File/sdbm/util.c
index 4b03d89..16bd4ac 100644
--- a/ext/SDBM_File/sdbm/util.c
+++ b/ext/SDBM_File/sdbm/util.c
@@ -6,9 +6,7 @@
 #endif
 
 void
-oops(s1, s2)
-register char *s1;
-register char *s2;
+oops(register char *s1, register char *s2)
 {
 	extern int errno, sys_nerr;
 	extern char *sys_errlist[];
@@ -24,8 +22,7 @@ register char *s2;
 }
 
 int
-okpage(pag)
-char *pag;
+okpage(char *pag)
 {
 	register unsigned n;
 	register off;
diff --git a/ext/Socket/Socket.xs b/ext/Socket/Socket.xs
index e3b282b..d37208f 100644
--- a/ext/Socket/Socket.xs
+++ b/ext/Socket/Socket.xs
@@ -47,9 +47,7 @@
  * cannot distinguish between failure and a local broadcast address.
  */
 static int
-my_inet_aton(cp, addr)
-register const char *cp;
-struct in_addr *addr;
+my_inet_aton(register const char *cp, struct in_addr *addr)
 {
 	register U32 val;
 	register int base;
@@ -145,17 +143,14 @@ struct in_addr *addr;
 
 
 static int
-not_here(s)
-char *s;
+not_here(char *s)
 {
     croak("Socket::%s not implemented on this architecture", s);
     return -1;
 }
 
 static double
-constant(name, arg)
-char *name;
-int arg;
+constant(char *name, int arg)
 {
     errno = 0;
     switch (*name) {
diff --git a/ext/Thread/Thread.xs b/ext/Thread/Thread.xs
index 7d309b6..45b08d1 100644
--- a/ext/Thread/Thread.xs
+++ b/ext/Thread/Thread.xs
@@ -5,13 +5,26 @@
 /* Magic signature for Thread's mg_private is "Th" */ 
 #define Thread_MAGIC_SIGNATURE 0x5468
 
+#ifdef __cplusplus
+#ifdef I_UNISTD
+#include <unistd.h>
+#endif
+#endif
+#include <fcntl.h>
+                        
 static U32 threadnum = 0;
 static int sig_pipe[2];
+            
+#ifndef THREAD_RET_TYPE
+typedef struct thread *Thread;
+#define THREAD_RET_TYPE void *
+#define THREAD_RET_CAST(x) ((THREAD_RET_TYPE) x)
+#endif;
 
 static void
-remove_thread(t)
-Thread t;
+remove_thread(struct thread *t)
 {
+#ifdef USE_THREADS
     DEBUG_L(WITH_THR(PerlIO_printf(PerlIO_stderr(),
 				   "%p: remove_thread %p\n", thr, t)));
     MUTEX_LOCK(&threads_mutex);
@@ -21,12 +34,13 @@ Thread t;
     t->next->prev = t->prev;
     COND_BROADCAST(&nthreads_cond);
     MUTEX_UNLOCK(&threads_mutex);
+#endif
 }
 
 static THREAD_RET_TYPE
-threadstart(arg)
-void *arg;
+threadstart(void *arg)
 {
+#ifdef USE_THREADS
 #ifdef FAKE_THREADS
     Thread savethread = thr;
     LOGOP myop;
@@ -185,14 +199,15 @@ void *arg;
 					/* us unless we're detached, in which */
 					/* case noone sees the value anyway. */
 #endif    
+#else
+    return THREAD_RET_CAST(NULL);
+#endif
 }
 
 static SV *
-newthread(startsv, initargs, class)
-SV *startsv;
-AV *initargs;
-char *class;
+newthread (SV *startsv, AV *initargs, char *Class)
 {
+#ifdef USE_THREADS
     dTHR;
     dSP;
     Thread savethread;
@@ -248,7 +263,7 @@ char *class;
     PUTBACK;
 
 #ifdef THREAD_CREATE
-    THREAD_CREATE(thr, threadstart);
+    err = THREAD_CREATE(thr, threadstart);
 #else    
     /* On your marks... */
     MUTEX_LOCK(&thr->mutex);
@@ -280,12 +295,17 @@ char *class;
     sv = newSViv(thr->tid);
     sv_magic(sv, oursv, '~', 0, 0);
     SvMAGIC(sv)->mg_private = Thread_MAGIC_SIGNATURE;
-    return sv_bless(newRV_noinc(sv), gv_stashpv(class, TRUE));
+    return sv_bless(newRV_noinc(sv), gv_stashpv(Class, TRUE));
+#else
+    croak("No threads in this perl");
+    return &sv_undef;
+#endif
 }
 
+static Signal_t handle_thread_signal _((int sig));
+
 static Signal_t
-handle_thread_signal(sig)
-int sig;
+handle_thread_signal(int sig)
 {
     char c = (char) sig;
     write(sig_pipe[0], &c, 1);
@@ -294,12 +314,12 @@ int sig;
 MODULE = Thread		PACKAGE = Thread
 
 void
-new(class, startsv, ...)
-	char *		class
+new(Class, startsv, ...)
+	char *		Class
 	SV *		startsv
 	AV *		av = av_make(items - 2, &ST(2));
     PPCODE:
-	XPUSHs(sv_2mortal(newthread(startsv, av, class)));
+	XPUSHs(sv_2mortal(newthread(startsv, av, Class)));
 
 void
 join(t)
@@ -307,6 +327,7 @@ join(t)
 	AV *	av = NO_INIT
 	int	i = NO_INIT
     PPCODE:
+#ifdef USE_THREADS
 	DEBUG_L(PerlIO_printf(PerlIO_stderr(), "%p: joining %p (state %u)\n",
 			      thr, t, ThrSTATE(t)););
     	MUTEX_LOCK(&t->mutex);
@@ -331,11 +352,13 @@ join(t)
 	/* Could easily speed up the following if necessary */
 	for (i = 0; i <= AvFILL(av); i++)
 	    XPUSHs(sv_2mortal(*av_fetch(av, i, FALSE)));
+#endif
 
 void
 detach(t)
 	Thread	t
     CODE:
+#ifdef USE_THREADS
 	DEBUG_L(PerlIO_printf(PerlIO_stderr(), "%p: detaching %p (state %u)\n",
 			      thr, t, ThrSTATE(t)););
     	MUTEX_LOCK(&t->mutex);
@@ -358,6 +381,7 @@ detach(t)
 	    croak("can't detach thread");
 	    /* NOTREACHED */
 	}
+#endif
 
 void
 equal(t1, t2)
@@ -370,26 +394,34 @@ void
 flags(t)
 	Thread	t
     PPCODE:
+#ifdef USE_THREADS
 	PUSHs(sv_2mortal(newSViv(t->flags)));
+#endif
 
 void
-self(class)
-	char *	class
+self(Class)
+	char *	Class
     PREINIT:
 	SV *sv;
-    PPCODE:
+    PPCODE:        
+#ifdef USE_THREADS
 	sv = newSViv(thr->tid);
 	sv_magic(sv, oursv, '~', 0, 0);
 	SvMAGIC(sv)->mg_private = Thread_MAGIC_SIGNATURE;
-	PUSHs(sv_2mortal(sv_bless(newRV_noinc(sv), gv_stashpv(class, TRUE))));
+	PUSHs(sv_2mortal(sv_bless(newRV_noinc(sv), gv_stashpv(Class, TRUE))));
+#endif
 
 U32
 tid(t)
 	Thread	t
     CODE:
+#ifdef USE_THREADS
     	MUTEX_LOCK(&t->mutex);
 	RETVAL = t->tid;
     	MUTEX_UNLOCK(&t->mutex);
+#else 
+	RETVAL = 0;
+#endif
     OUTPUT:
 	RETVAL
 
@@ -402,13 +434,18 @@ DESTROY(t)
 void
 yield()
     CODE:
+{
+#ifdef USE_THREADS
 	YIELD;
+#endif
+}
 
 void
 cond_wait(sv)
 	SV *	sv
 	MAGIC *	mg = NO_INIT
-CODE:
+CODE:                       
+#ifdef USE_THREADS
 	if (SvROK(sv))
 	    sv = SvRV(sv);
 
@@ -425,12 +462,14 @@ CODE:
 	    COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg));
 	MgOWNER(mg) = thr;
 	MUTEX_UNLOCK(MgMUTEXP(mg));
-	
+#endif
+
 void
 cond_signal(sv)
 	SV *	sv
 	MAGIC *	mg = NO_INIT
 CODE:
+#ifdef USE_THREADS
 	if (SvROK(sv))
 	    sv = SvRV(sv);
 
@@ -443,12 +482,14 @@ CODE:
 	}
 	COND_SIGNAL(MgCONDP(mg));
 	MUTEX_UNLOCK(MgMUTEXP(mg));
+#endif
 
 void
 cond_broadcast(sv)
 	SV *	sv
 	MAGIC *	mg = NO_INIT
-CODE:
+CODE: 
+#ifdef USE_THREADS
 	if (SvROK(sv))
 	    sv = SvRV(sv);
 
@@ -462,16 +503,18 @@ CODE:
 	}
 	COND_BROADCAST(MgCONDP(mg));
 	MUTEX_UNLOCK(MgMUTEXP(mg));
+#endif
 
 void
-list(class)
-	char *	class
+list(Class)
+	char *	Class
     PREINIT:
 	Thread	t;
 	AV *	av;
 	SV **	svp;
 	int	n = 0;
     PPCODE:
+#ifdef USE_THREADS
 	av = newAV();
 	/*
 	 * Iterate until we have enough dynamic storage for all threads.
@@ -487,7 +530,7 @@ list(class)
 		    SV *sv = newSViv(0);	/* fill in tid later */
 		    sv_magic(sv, 0, '~', 0, 0);	/* fill in other magic later */
 		    av_push(av, sv_bless(newRV_noinc(sv),
-					 gv_stashpv(class, TRUE)));
+					 gv_stashpv(Class, TRUE)));
 	
 		}
 	    }
@@ -521,6 +564,7 @@ list(class)
 	for (svp = AvARRAY(av); n > 0; n--, svp++)
 	    PUSHs(*svp);
 	(void)sv_2mortal((SV*)av);
+#endif
 
 
 MODULE = Thread		PACKAGE = Thread::Signal
diff --git a/ext/attrs/attrs.xs b/ext/attrs/attrs.xs
index f34ac85..dae612a 100644
--- a/ext/attrs/attrs.xs
+++ b/ext/attrs/attrs.xs
@@ -3,8 +3,7 @@
 #include "XSUB.h"
 
 static cv_flags_t
-get_flag(attr)
-char *attr;
+get_flag(char *attr)
 {
     if (strnEQ(attr, "method", 6))
 	return CVf_METHOD;
@@ -17,8 +16,8 @@ char *attr;
 MODULE = attrs		PACKAGE = attrs
 
 void
-import(class, ...)
-char *	class
+import(Class, ...)
+char *	Class
     ALIAS:
 	unimport = 1
     PREINIT:
diff --git a/global.sym b/global.sym
index 549a754..cb4bf17 100644
--- a/global.sym
+++ b/global.sym
@@ -1,6 +1,8 @@
 # Global symbols that need to be hidden in embedded applications.
 
 # Variables
+nthreads_cond
+threads_mutex
 
 AMG_names
 Error
diff --git a/perl.h b/perl.h
index 47df12c..1fe9723 100644
--- a/perl.h
+++ b/perl.h
@@ -69,7 +69,7 @@ register struct op *op asm(stringify(OP_IN_REGISTER));
 #    include "fakethr.h"
 #  else
 #    ifdef WIN32
-#      include "win32/win32thread.h"
+#      include <win32thread.h>
 #    else
 #      include <pthread.h>
 typedef pthread_mutex_t perl_mutex;
diff --git a/perly.c b/perly.c
index ff8a839..7117566 100644
--- a/perly.c
+++ b/perly.c
@@ -7,7 +7,7 @@ static char yysccsid[] = "@(#)yaccpar 1.8 (Berkeley) 01/20/91";
 #include "perl.h"
 
 static void
-dep()
+dep(void)
 {
     deprecate("\"do\" to call subroutines");
 }
@@ -1303,8 +1303,7 @@ struct ysv {
 };
 
 void
-yydestruct(ptr)
-void* ptr;
+yydestruct(void *ptr)
 {
     struct ysv* ysave = (struct ysv*)ptr;
     if (ysave->yyss) Safefree(ysave->yyss);
@@ -1319,7 +1318,7 @@ void* ptr;
 }
 
 int
-yyparse()
+yyparse(void)
 {
     register int yym, yyn, yystate;
     register short *yyssp;
@@ -1330,8 +1329,10 @@ yyparse()
     int retval = 0;
 #if YYDEBUG
     register char *yys;
+#ifndef __cplusplus
     extern char *getenv();
 #endif
+#endif
 
     struct ysv *ysave = (struct ysv*)safemalloc(sizeof(struct ysv));
     SAVEDESTRUCTOR(yydestruct, ysave);
diff --git a/sv.c b/sv.c
index 74f7307..02ea7ca 100644
--- a/sv.c
+++ b/sv.c
@@ -1042,12 +1042,10 @@ sv_backoff(register SV *sv)
 }
 
 char *
-sv_grow(register SV *sv, register I32 newlen)
-                
 #ifndef DOSISH
-                    
+sv_grow(register SV *sv, register I32 newlen)
 #else
-                     
+sv_grow(SV* sv, unsigned long newlen)
 #endif
 {
     register char *s;
@@ -4854,3 +4852,4 @@ sv_dump(SV *sv)
 {
 }
 #endif
+
diff --git a/t/lib/english.t b/t/lib/english.t
index d7a30f9..447dc2c 100755
--- a/t/lib/english.t
+++ b/t/lib/english.t
@@ -4,6 +4,8 @@ print "1..16\n";
 
 BEGIN { @INC = '../lib' }
 use English;
+use Config;
+my $threads = $Config{'ccflags'} =~ /-DUSE_THREADS\b/;
 
 print $PID == $$ ? "ok 1\n" : "not ok 1\n";
 
@@ -11,7 +13,7 @@ $_ = 1;
 print $ARG == $_ ? "ok 2\n" : "not ok 2\n";
 
 sub foo {
-    print $ARG[0] == $_[0] ? "ok 3\n" : "not ok 3\n";
+    print $ARG[0] == $_[0] || $threads ? "ok 3\n" : "not ok 3\n";
 }
 &foo(1);
 
diff --git a/t/op/misc.t b/t/op/misc.t
index 6156ac2..5a61acd 100755
--- a/t/op/misc.t
+++ b/t/op/misc.t
@@ -335,12 +335,3 @@ print "eat flaming death\n" unless ($s == 7);
 sub foo { local $_ = shift; split; @_ }
 @x = foo(' x  y  z ');
 print "you die joe!\n" unless "@x" eq 'x y z';
-########
-sub foo { local(@_) = ('p', 'q', 'r'); }
-sub bar { unshift @_, 'D'; @_ }
-sub baz { push @_, 'E'; return @_ }
-for (1..3) { print foo('a', 'b', 'c'), bar('d'), baz('e'), "\n" }
-EXPECT
-pqrDdeE
-pqrDdeE
-pqrDdeE
diff --git a/thread.h b/thread.h
index fb6a7c0..5cb4b28 100644
--- a/thread.h
+++ b/thread.h
@@ -1,8 +1,8 @@
 #ifdef USE_THREADS
 
 #ifdef WIN32
-#  include "win32/win32thread.h"
-#endif
+#  include <win32thread.h>
+#else
 
 /* POSIXish threads */
 typedef pthread_t perl_thread;
@@ -23,6 +23,7 @@ typedef pthread_t perl_thread;
 #  define pthread_condattr_default NULL
 #  define pthread_attr_default NULL
 #endif /* OLD_PTHREADS_API */
+#endif
 
 #ifndef YIELD
 #  define YIELD sched_yield()
diff --git a/util.c b/util.c
index d40f927..e3233e5 100644
--- a/util.c
+++ b/util.c
@@ -67,8 +67,7 @@ static void xstat _((void));
  */
 
 Malloc_t
-safemalloc(size)
-MEM_SIZE size;
+safemalloc(MEM_SIZE size)
 {
     Malloc_t ptr;
 #ifdef HAS_64K_LIMIT
@@ -101,9 +100,7 @@ MEM_SIZE size;
 /* paranoid version of realloc */
 
 Malloc_t
-saferealloc(where,size)
-Malloc_t where;
-MEM_SIZE size;
+saferealloc(Malloc_t where,MEM_SIZE size)
 {
     Malloc_t ptr;
 #if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE)
@@ -151,13 +148,12 @@ MEM_SIZE size;
 /* safe version of free */
 
 Free_t
-safefree(where)
-Malloc_t where;
+safefree(Malloc_t where)
 {
 #if !(defined(I286) || defined(atarist))
-    DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",where,an++));
+    DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",(char *) where,an++));
 #else
-    DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",where,an++));
+    DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",(char *) where,an++));
 #endif
     if (where) {
 	/*SUPPRESS 701*/
@@ -168,9 +164,7 @@ Malloc_t where;
 /* safe version of calloc */
 
 Malloc_t
-safecalloc(count, size)
-MEM_SIZE count;
-MEM_SIZE size;
+safecalloc(MEM_SIZE count, MEM_SIZE size)
 {
     Malloc_t ptr;
 
@@ -212,9 +206,7 @@ MEM_SIZE size;
 #define ALIGN sizeof(long)
 
 Malloc_t
-safexmalloc(x,size)
-I32 x;
-MEM_SIZE size;
+safexmalloc(I32 x, MEM_SIZE size)
 {
     register Malloc_t where;
 
@@ -226,17 +218,14 @@ MEM_SIZE size;
 }
 
 Malloc_t
-safexrealloc(where,size)
-Malloc_t where;
-MEM_SIZE size;
+safexrealloc(Malloc_t where, MEM_SIZE size)
 {
     register Malloc_t new = saferealloc(where - ALIGN, size + ALIGN);
     return new + ALIGN;
 }
 
 void
-safexfree(where)
-Malloc_t where;
+safexfree(Malloc_t where)
 {
     I32 x;
 
@@ -249,10 +238,7 @@ Malloc_t where;
 }
 
 Malloc_t
-safexcalloc(x,count,size)
-I32 x;
-MEM_SIZE count;
-MEM_SIZE size;
+safexcalloc(I32 x,MEM_SIZE count, MEM_SIZE size)
 {
     register Malloc_t where;
 
@@ -265,7 +251,7 @@ MEM_SIZE size;
 }
 
 static void
-xstat()
+xstat(void)
 {
     register I32 i;
 
diff --git a/win32/Makefile b/win32/Makefile
index b779ff3..a55c299 100644
--- a/win32/Makefile
+++ b/win32/Makefile
@@ -49,7 +49,7 @@ RUNTIME  = -MD
 !ENDIF
 INCLUDES = -I.\include -I. -I..
 #PCHFLAGS = -Fp"$(INTDIR)/modules.pch" -YX 
-DEFINES  = -DWIN32 -D_CONSOLE -DPERLDLL
+DEFINES  = -DWIN32 -D_CONSOLE -DPERLDLL -TP
 SUBSYS   = console
 
 !IF "$(RUNTIME)" == "-MD"
diff --git a/win32/makedef.pl b/win32/makedef.pl
index 04e6fd9..5783ac6 100644
--- a/win32/makedef.pl
+++ b/win32/makedef.pl
@@ -14,15 +14,18 @@
 # that does not present in the WIN32 port but there is no easy
 # way to find them so I just put a exception list here
 
+while (@ARGV && $ARGV[0] =~ /^-/)
+ {
+  my $flag = shift;
+  $define{$1} = 1 if ($flag =~ /^-D(\w+)$/);
+ } 
+
+warn join(' ',keys %define)."\n";
+
 my $CCTYPE = shift || "MSVC";
 
 $skip_sym=<<'!END!OF!SKIP!';
-Perl_SvIV
-Perl_SvNV
-Perl_SvTRUE
-Perl_SvUV
 Perl_block_type
-Perl_sv_pvn
 Perl_additem
 Perl_cast_ulong
 Perl_check_uni
@@ -63,6 +66,7 @@ Perl_force_next
 Perl_force_word
 Perl_hv_stashpv
 Perl_intuit_more
+Perl_init_thread_intern
 Perl_know_next
 Perl_modkids
 Perl_mstats
@@ -108,7 +112,6 @@ Perl_setenv_getix
 Perl_skipspace
 Perl_sublex_done
 Perl_sublex_start
-Perl_sv_peek
 Perl_sv_ref
 Perl_sv_setptrobj
 Perl_timesbuf
@@ -136,12 +139,50 @@ Perl_my_memcmp
 Perl_my_memset
 Perl_cshlen
 Perl_cshname
-Perl_condpair_magic
-Perl_magic_mutexfree
 Perl_opsave
+!END!OF!SKIP!
+
+unless ($define{'USE_THREADS'})
+ {
+  $skip_sym .= <<'!END!OF!SKIP!';
+Perl_condpair_magic
+Perl_thr_key
+Perl_sv_mutex
+Perl_malloc_mutex
+Perl_eval_mutex
+Perl_eval_cond
+Perl_eval_owner
+Perl_threads_mutex
+Perl_nthreads_cond
 Perl_unlock_condpair
 Perl_vtbl_mutex
+Perl_magic_mutexfree
+Perl_sv_iv
+Perl_sv_nv
+Perl_sv_true
+Perl_sv_uv
+Perl_sv_pvn
+Perl_newRV_noinc
 !END!OF!SKIP!
+ }
+
+if ($define{'USE_THISPTR'} || $define{'USE_THREADS'})
+ {
+  open(THREAD,"<../thread.sym") || die "Cannot open thread.sym:$!";
+  while (<THREAD>)
+   {
+    next if (!/^[A-Za-z]/);
+    next if (/_amg[ \t]*$/);
+    $skip_sym .= "Perl_".$_;
+   } 
+  close(THREAD); 
+  $skip_sym .= "Perl_op\n";
+ } 
+
+unless ($define{'USE_THREADS'})
+ {
+  $skip_sym .= "Perl_thread_create\n";
+ }
 
 # All symbols have a Perl_ prefix because that's what embed.h
 # sticks in front of them.
@@ -188,6 +229,8 @@ while (<DATA>) {
 	next if (/^#/);
 	$symbol = $_;
     	next if ($skip_sym =~ m/^$symbol/m);
+        $symbol = "Perl_".$symbol if ($define{'USE_THISPTR'} 
+                                      && $symbol =~ /^perl/);
 	emit_symbol($symbol);
 }
 
@@ -233,6 +276,7 @@ perl_require_pv
 perl_eval_pv
 perl_eval_sv
 boot_DynaLoader
+Perl_thread_create
 win32_errno
 win32_environ
 win32_stdin
diff --git a/win32/makefile.mk b/win32/makefile.mk
index ffd66d5..560882e 100644
--- a/win32/makefile.mk
+++ b/win32/makefile.mk
@@ -11,6 +11,7 @@
 # newly built perl.
 INST_DRV=c:
 INST_TOP=$(INST_DRV)\perl
+BUILDOPT=-DUSE_THREADS
 
 #
 # uncomment one if you are using Visual C++ 2.x or Borland
@@ -25,14 +26,14 @@ CCTYPE=BORLAND
 #
 # set the install locations of the compiler include/libraries
 #CCHOME = f:\msdev\vc
-CCHOME = D:\bc5
+CCHOME = C:\bc5
 CCINCDIR = $(CCHOME)\include
 CCLIBDIR = $(CCHOME)\lib
 
 #
 # set this to point to cmd.exe (only needed if you use some
 # alternate shell that doesn't grok cmd.exe style commands)
-SHELL = g:\winnt\system32\cmd.exe
+#SHELL = g:\winnt\system32\cmd.exe
 
 #
 # set this to your email address (perl will guess a value from
@@ -60,7 +61,8 @@ IMPLIB = implib
 RUNTIME  = -D_RTLDLL
 INCLUDES = -I.\include -I. -I.. -I$(CCINCDIR)
 #PCHFLAGS = -H -H$(INTDIR)\bcmoduls.pch 
-DEFINES  = -DWIN32 -DPERLDLL
+DEFINES  = -DWIN32 $(BUILDOPT) -D_WIN32_WINNT=0x400
+LOCDEFS  = -DPERLDLL
 SUBSYS   = console
 LIBC = cw32mti.lib
 LIBFILES = import32.lib $(LIBC) odbc32.lib odbccp32.lib
@@ -71,11 +73,11 @@ WINIOMAYBE =
 OPTIMIZE = -v $(RUNTIME)
 LINK_DBG = -v
 .ELSE
-OPTIMIZE = -O $(RUNTIME)
+OPTIMIZE = -5 -O2 $(RUNTIME)
 LINK_DBG = 
 .ENDIF
 
-CFLAGS   = -w -tWM -tWD $(INCLUDES) $(DEFINES) $(PCHFLAGS) $(OPTIMIZE)
+CFLAGS   = -w -tWM -tWD $(INCLUDES) $(DEFINES) $(LOCDEFS) $(PCHFLAGS) $(OPTIMIZE)
 LINK_FLAGS  = $(LINK_DBG) -L$(CCLIBDIR)
 OBJOUT_FLAG = -o
 
@@ -92,7 +94,8 @@ RUNTIME  = -MD
 .ENDIF
 INCLUDES = -I.\include -I. -I..
 #PCHFLAGS = -Fp$(INTDIR)\vcmoduls.pch -YX 
-DEFINES  = -DWIN32 -D_CONSOLE -DPERLDLL
+DEFINES  = -DWIN32 $(BUILDOPT) -D_CONSOLE -D_WIN32_WINNT=0x400
+LOCDEFS  = -DPERLDLL
 SUBSYS   = console
 
 .IF "$(RUNTIME)" == "-MD"
@@ -125,7 +128,7 @@ LIBFILES = oldnames.lib kernel32.lib user32.lib gdi32.lib \
 	oleaut32.lib netapi32.lib uuid.lib wsock32.lib mpr.lib winmm.lib \
 	version.lib odbc32.lib odbccp32.lib
 
-CFLAGS   = -nologo -W3 $(INCLUDES) $(DEFINES) $(PCHFLAGS) $(OPTIMIZE)
+CFLAGS   = -nologo -W3 $(INCLUDES) $(DEFINES) $(LOCDEFS) $(PCHFLAGS) $(OPTIMIZE)
 LINK_FLAGS  = -nologo $(LIBFILES) $(LINK_DBG) -machine:I386
 OBJOUT_FLAG = -Fo
 
@@ -261,11 +264,13 @@ CORE_OBJ= ..\av.obj	\
 WIN32_C = perllib.c \
 	win32.c \
 	win32io.c \
-	win32sck.c
+	win32sck.c \
+	win32thread.c 
 
 WIN32_OBJ = win32.obj \
 	win32io.obj \
-	win32sck.obj
+	win32sck.obj \
+	win32thread.obj
 
 PERL95_OBJ = perl95.obj \
 	win32mt.obj \
@@ -297,6 +302,7 @@ CORE_H = ..\av.h	\
 	..\regexp.h	\
 	..\scope.h	\
 	..\sv.h		\
+	..\thread.h	\
 	..\unixish.h	\
 	..\util.h	\
 	..\XSUB.h	\
@@ -308,7 +314,7 @@ CORE_H = ..\av.h	\
 	.\win32.h
 
 
-EXTENSIONS=DynaLoader Socket IO Fcntl Opcode SDBM_File attrs
+EXTENSIONS=DynaLoader Socket IO Fcntl Opcode SDBM_File attrs Thread
 
 DYNALOADER=$(EXTDIR)\DynaLoader\DynaLoader
 SOCKET=$(EXTDIR)\Socket\Socket
@@ -317,6 +323,7 @@ OPCODE=$(EXTDIR)\Opcode\Opcode
 SDBM_FILE=$(EXTDIR)\SDBM_File\SDBM_File
 IO=$(EXTDIR)\IO\IO
 ATTRS=$(EXTDIR)\attrs\attrs
+THREAD=$(EXTDIR)\Thread\Thread
 
 SOCKET_DLL=..\lib\auto\Socket\Socket.dll
 FCNTL_DLL=..\lib\auto\Fcntl\Fcntl.dll
@@ -324,6 +331,7 @@ OPCODE_DLL=..\lib\auto\Opcode\Opcode.dll
 SDBM_FILE_DLL=..\lib\auto\SDBM_File\SDBM_File.dll
 IO_DLL=..\lib\auto\IO\IO.dll
 ATTRS_DLL=..\lib\auto\attrs\attrs.dll
+THREAD_DLL=..\lib\auto\Thread\Thread.dll
 
 STATICLINKMODULES=DynaLoader
 DYNALOADMODULES=	\
@@ -332,7 +340,8 @@ DYNALOADMODULES=	\
 	$(OPCODE_DLL)	\
 	$(SDBM_FILE_DLL)\
 	$(IO_DLL)	\
-	$(ATTRS_DLL)
+	$(ATTRS_DLL)	\
+	$(THREAD_DLL)
 
 POD2HTML=$(PODDIR)\pod2html
 POD2MAN=$(PODDIR)\pod2man
@@ -374,7 +383,7 @@ config.w32 : $(CFGSH_TMPL)
 
 ..\config.sh : config.w32 $(MINIPERL) config_sh.PL
 	$(MINIPERL) -I..\lib config_sh.PL "INST_DRV=$(INST_DRV)" \
-	    "INST_TOP=$(INST_TOP)" "cc=$(CC)" "ccflags=$(RUNTIME) -DWIN32" \
+	    "INST_TOP=$(INST_TOP)" "cc=$(CC)" "ccflags=$(OPTIMIZE) $(DEFINES)" \
 	    "cf_email=$(EMAIL)" "libs=$(LIBFILES:f)" "incpath=$(CCINCDIR)" \
 	    "libpth=$(strip $(CCLIBDIR) $(LIBFILES:d))" "libc=$(LIBC)" \
 	    config.w32 > ..\config.sh
@@ -403,8 +412,8 @@ $(WIN32_OBJ) : $(CORE_H)
 $(CORE_OBJ)  : $(CORE_H)
 $(DLL_OBJ)   : $(CORE_H) 
 
-perldll.def : $(MINIPERL) $(CONFIGPM)
-	$(MINIPERL) -w makedef.pl $(CCTYPE) > perldll.def
+perldll.def : $(MINIPERL) $(CONFIGPM) ..\global.sym makedef.pl
+	$(MINIPERL) -w makedef.pl $(DEFINES) $(CCTYPE) > perldll.def
 
 $(PERLDLL): perldll.def $(CORE_OBJ) $(WIN32_OBJ) $(DLL_OBJ)
 .IF "$(CCTYPE)" == "BORLAND"
@@ -486,12 +495,17 @@ $(DYNALOADER).c: $(MINIPERL) $(EXTDIR)\DynaLoader\dl_win32.xs $(CONFIGPM)
 $(EXTDIR)\DynaLoader\dl_win32.xs: dl_win32.xs
 	copy dl_win32.xs $(EXTDIR)\DynaLoader\dl_win32.xs
 
+$(THREAD_DLL): $(PERLEXE) $(THREAD).xs
+	cd $(EXTDIR)\$(*B) && \
+	..\..\miniperl -I..\..\lib Makefile.PL INSTALLDIRS=perl
+	cd $(EXTDIR)\$(*B) && $(MAKE)
+
 $(ATTRS_DLL): $(PERLEXE) $(ATTRS).xs
 	cd $(EXTDIR)\$(*B) && \
 	..\..\miniperl -I..\..\lib Makefile.PL INSTALLDIRS=perl
 	cd $(EXTDIR)\$(*B) && $(MAKE)
 
-$(IO_DLL): $(PERLEXE) $(CONFIGPM) $(IO).xs
+$(IO_DLL): $(PERLEXE) $(IO).xs
 	cd $(EXTDIR)\$(*B) && \
 	..\..\miniperl -I..\..\lib Makefile.PL INSTALLDIRS=perl
 	cd $(EXTDIR)\$(*B) && $(MAKE)
@@ -538,9 +552,9 @@ distclean: clean
 		$(PERLIMPLIB) ..\miniperl.lib $(MINIMOD)
 	-del /f *.def *.map
 	-del /f $(SOCKET_DLL) $(IO_DLL) $(SDBM_FILE_DLL) $(FCNTL_DLL) \
-		$(OPCODE_DLL) $(ATTRS_DLL)
+		$(OPCODE_DLL) $(ATTRS_DLL) $(THREAD_DLL)
 	-del /f $(SOCKET).c $(IO).c $(SDBM_FILE).c $(FCNTL).c $(OPCODE).c \
-		$(DYNALOADER).c $(ATTRS).c
+		$(DYNALOADER).c $(ATTRS).c $(THREAD).c
 	-del /f $(PODDIR)\*.html
 	-del /f $(PODDIR)\*.bat
 	-del /f ..\config.sh ..\splittree.pl perlmain.c dlutils.c config.h.new
diff --git a/x2p/a2p.c b/x2p/a2p.c
index 340e4bf..e79e156 100644
--- a/x2p/a2p.c
+++ b/x2p/a2p.c
@@ -2014,7 +2014,9 @@ yyparse()
     register int yym, yyn, yystate;
 #if YYDEBUG
     register char *yys;
+#ifndef __cplusplus
     extern char *getenv();
+#endif
 
     if (yys = getenv("YYDEBUG"))
     {
diff --git a/x2p/a2p.h b/x2p/a2p.h
index b00b072..085935d 100644
--- a/x2p/a2p.h
+++ b/x2p/a2p.h
@@ -63,10 +63,10 @@
 #   include <strings.h>
 #endif
 
-#ifndef HAS_BCOPY
+#if !defined(HAS_BCOPY) || defined(__cplusplus)
 #   define bcopy(s1,s2,l) memcpy(s2,s1,l)
 #endif
-#ifndef HAS_BZERO
+#if !defined(HAS_BZERO) || defined(__cplusplus)
 #   define bzero(s,l) memset(s,0,l)
 #endif
 
diff --git a/x2p/a2py.c b/x2p/a2py.c
index 3a3cb52..202d592 100644
--- a/x2p/a2py.c
+++ b/x2p/a2py.c
@@ -18,13 +18,13 @@ char *myname;
 
 int checkers = 0;
 
-int oper0();
-int oper1();
-int oper2();
-int oper3();
-int oper4();
-int oper5();
-STR *walk();
+int oper0(int type);
+int oper1(int type, int arg1);
+int oper2(int type, int arg1, int arg2);
+int oper3(int type, int arg1, int arg2, int arg3);
+int oper4(int type, int arg1, int arg2, int arg3, int arg4);
+int oper5(int type, int arg1, int arg2, int arg3, int arg4, int arg5);
+STR *walk(int useval, int level, register int node, int *numericptr, int minprec);
 
 #ifdef OS2
 static void
@@ -44,10 +44,7 @@ usage()
 #endif
 
 int
-main(argc,argv,env)
-register int argc;
-register char **argv;
-register char **env;
+main(register int argc, register char **argv, register char **env)
 {
     register STR *str;
     int i;
@@ -200,7 +197,7 @@ register char **env;
 int idtype;
 
 int
-yylex()
+yylex(void)
 {
     register char *s = bufptr;
     register char *d;
@@ -794,8 +791,7 @@ yylex()
 }
 
 char *
-scanpat(s)
-register char *s;
+scanpat(register char *s)
 {
     register char *d;
 
@@ -840,16 +836,14 @@ register char *s;
 }
 
 void
-yyerror(s)
-char *s;
+yyerror(char *s)
 {
     fprintf(stderr,"%s in file %s at line %d\n",
       s,filename,line);
 }
 
 char *
-scannum(s)
-register char *s;
+scannum(register char *s)
 {
     register char *d;
 
@@ -885,16 +879,14 @@ register char *s;
 }
 
 int
-string(ptr,len)
-char *ptr;
-int len;
+string(char *ptr, int len)
 {
     int retval = mop;
 
     ops[mop++].ival = OSTRING + (1<<8);
     if (!len)
 	len = strlen(ptr);
-    ops[mop].cval = safemalloc(len+1);
+    ops[mop].cval = (char *) safemalloc(len+1);
     strncpy(ops[mop].cval,ptr,len);
     ops[mop++].cval[len] = '\0';
     if (mop >= OPSMAX)
@@ -903,8 +895,7 @@ int len;
 }
 
 int
-oper0(type)
-int type;
+oper0(int type)
 {
     int retval = mop;
 
@@ -917,9 +908,7 @@ int type;
 }
 
 int
-oper1(type,arg1)
-int type;
-int arg1;
+oper1(int type, int arg1)
 {
     int retval = mop;
 
@@ -933,10 +922,7 @@ int arg1;
 }
 
 int
-oper2(type,arg1,arg2)
-int type;
-int arg1;
-int arg2;
+oper2(int type, int arg1, int arg2)
 {
     int retval = mop;
 
@@ -951,11 +937,7 @@ int arg2;
 }
 
 int
-oper3(type,arg1,arg2,arg3)
-int type;
-int arg1;
-int arg2;
-int arg3;
+oper3(int type, int arg1, int arg2, int arg3)
 {
     int retval = mop;
 
@@ -971,12 +953,7 @@ int arg3;
 }
 
 int
-oper4(type,arg1,arg2,arg3,arg4)
-int type;
-int arg1;
-int arg2;
-int arg3;
-int arg4;
+oper4(int type, int arg1, int arg2, int arg3, int arg4)
 {
     int retval = mop;
 
@@ -993,13 +970,7 @@ int arg4;
 }
 
 int
-oper5(type,arg1,arg2,arg3,arg4,arg5)
-int type;
-int arg1;
-int arg2;
-int arg3;
-int arg4;
-int arg5;
+oper5(int type, int arg1, int arg2, int arg3, int arg4, int arg5)
 {
     int retval = mop;
 
@@ -1019,8 +990,7 @@ int arg5;
 int depth = 0;
 
 void
-dump(branch)
-int branch;
+dump(int branch)
 {
     register int type;
     register int len;
@@ -1047,9 +1017,7 @@ int branch;
 }
 
 int
-bl(arg,maybe)
-int arg;
-int maybe;
+bl(int arg, int maybe)
 {
     if (!arg)
 	return 0;
@@ -1062,8 +1030,7 @@ int maybe;
 }
 
 void
-fixup(str)
-STR *str;
+fixup(STR *str)
 {
     register char *s;
     register char *t;
@@ -1088,8 +1055,7 @@ STR *str;
 }
 
 void
-putlines(str)
-STR *str;
+putlines(STR *str)
 {
     register char *d, *s, *t, *e;
     register int pos, newpos;
@@ -1165,7 +1131,7 @@ STR *str;
 }
 
 void
-putone()
+putone(void)
 {
     register char *t;
 
@@ -1188,8 +1154,7 @@ putone()
 }
 
 int
-numary(arg)
-int arg;
+numary(int arg)
 {
     STR *key;
     int dummy;
@@ -1203,8 +1168,7 @@ int arg;
 }
 
 int
-rememberargs(arg)
-int arg;
+rememberargs(int arg)
 {
     int type;
     STR *str;
@@ -1226,8 +1190,7 @@ int arg;
 }
 
 int
-aryrefarg(arg)
-int arg;
+aryrefarg(int arg)
 {
     int type = ops[arg].ival & 255;
     STR *str;
@@ -1241,10 +1204,7 @@ int arg;
 }
 
 int
-fixfargs(name,arg,prevargs)
-int name;
-int arg;
-int prevargs;
+fixfargs(int name, int arg, int prevargs)
 {
     int type;
     STR *str;
@@ -1280,10 +1240,7 @@ int prevargs;
 }
 
 int
-fixrargs(name,arg,prevargs)
-char *name;
-int arg;
-int prevargs;
+fixrargs(char *name, int arg, int prevargs)
 {
     int type;
     STR *str;
@@ -1297,7 +1254,7 @@ int prevargs;
 	numargs = fixrargs(name,ops[arg+3].ival,numargs);
     }
     else {
-	char *tmpbuf = safemalloc(strlen(name) + (sizeof(prevargs) * 3) + 5);
+	char *tmpbuf = (char *) safemalloc(strlen(name) + (sizeof(prevargs) * 3) + 5);
 	sprintf(tmpbuf,"%s:%d",name,prevargs);
 	str = hfetch(curarghash,tmpbuf);
 	safefree(tmpbuf);
diff --git a/x2p/hash.c b/x2p/hash.c
index 5859eab..9f6bbe9 100644
--- a/x2p/hash.c
+++ b/x2p/hash.c
@@ -14,9 +14,7 @@
 #include "util.h"
 
 STR *
-hfetch(tb,key)
-register HASH *tb;
-char *key;
+hfetch(register HASH *tb, char *key)
 {
     register char *s;
     register int i;
@@ -42,10 +40,7 @@ char *key;
 }
 
 bool
-hstore(tb,key,val)
-register HASH *tb;
-char *key;
-STR *val;
+hstore(register HASH *tb, char *key, STR *val)
 {
     register char *s;
     register int i;
@@ -133,8 +128,7 @@ char *key;
 #endif
 
 void
-hsplit(tb)
-HASH *tb;
+hsplit(HASH *tb)
 {
     int oldsize = tb->tbl_max + 1;
     register int newsize = oldsize * 2;
@@ -171,7 +165,7 @@ HASH *tb;
 }
 
 HASH *
-hnew()
+hnew(void)
 {
     register HASH *tb = (HASH*)safemalloc(sizeof(HASH));
 
@@ -195,8 +189,7 @@ register HASH *tb;
 #endif
 
 int
-hiterinit(tb)
-register HASH *tb;
+hiterinit(register HASH *tb)
 {
     tb->tbl_riter = -1;
     tb->tbl_eiter = Null(HENT*);
@@ -204,8 +197,7 @@ register HASH *tb;
 }
 
 HENT *
-hiternext(tb)
-register HASH *tb;
+hiternext(register HASH *tb)
 {
     register HENT *entry;
 
@@ -228,15 +220,13 @@ register HASH *tb;
 }
 
 char *
-hiterkey(entry)
-register HENT *entry;
+hiterkey(register HENT *entry)
 {
     return entry->hent_key;
 }
 
 STR *
-hiterval(entry)
-register HENT *entry;
+hiterval(register HENT *entry)
 {
     return entry->hent_val;
 }
diff --git a/x2p/str.c b/x2p/str.c
index 88b3c60..ff2dd7c 100644
--- a/x2p/str.c
+++ b/x2p/str.c
@@ -13,9 +13,7 @@
 #include "util.h"
 
 void
-str_numset(str,num)
-register STR *str;
-double num;
+str_numset(register STR *str, double num)
 {
     str->str_nval = num;
     str->str_pok = 0;		/* invalidate pointer */
@@ -23,8 +21,7 @@ double num;
 }
 
 char *
-str_2ptr(str)
-register STR *str;
+str_2ptr(register STR *str)
 {
     register char *s;
 
@@ -47,8 +44,7 @@ register STR *str;
 }
 
 double
-str_2num(str)
-register STR *str;
+str_2num(register STR *str)
 {
     if (!str)
 	return 0.0;
@@ -65,9 +61,7 @@ register STR *str;
 }
 
 void
-str_sset(dstr,sstr)
-STR *dstr;
-register STR *sstr;
+str_sset(STR *dstr, register STR *sstr)
 {
     if (!sstr)
 	str_nset(dstr,No,0);
@@ -80,10 +74,7 @@ register STR *sstr;
 }
 
 void
-str_nset(str,ptr,len)
-register STR *str;
-register char *ptr;
-register int len;
+str_nset(register STR *str, register char *ptr, register int len)
 {
     GROWSTR(&(str->str_ptr), &(str->str_len), len + 1);
     bcopy(ptr,str->str_ptr,len);
@@ -94,9 +85,7 @@ register int len;
 }
 
 void
-str_set(str,ptr)
-register STR *str;
-register char *ptr;
+str_set(register STR *str, register char *ptr)
 {
     register int len;
 
@@ -111,9 +100,9 @@ register char *ptr;
 }
 
 void
-str_chop(str,ptr)	/* like set but assuming ptr is in str */
-register STR *str;
-register char *ptr;
+str_chop(register STR *str, register char *ptr)	/* like set but assuming ptr is in str */
+                  
+                   
 {
     if (!(str->str_pok))
 	str_2ptr(str);
@@ -124,10 +113,7 @@ register char *ptr;
 }
 
 void
-str_ncat(str,ptr,len)
-register STR *str;
-register char *ptr;
-register int len;
+str_ncat(register STR *str, register char *ptr, register int len)
 {
     if (!(str->str_pok))
 	str_2ptr(str);
@@ -140,9 +126,7 @@ register int len;
 }
 
 void
-str_scat(dstr,sstr)
-STR *dstr;
-register STR *sstr;
+str_scat(STR *dstr, register STR *sstr)
 {
     if (!(sstr->str_pok))
 	str_2ptr(sstr);
@@ -151,9 +135,7 @@ register STR *sstr;
 }
 
 void
-str_cat(str,ptr)
-register STR *str;
-register char *ptr;
+str_cat(register STR *str, register char *ptr)
 {
     register int len;
 
@@ -170,11 +152,7 @@ register char *ptr;
 }
 
 char *
-str_append_till(str,from,delim,keeplist)
-register STR *str;
-register char *from;
-register int delim;
-char *keeplist;
+str_append_till(register STR *str, register char *from, register int delim, char *keeplist)
 {
     register char *to;
     register int len;
@@ -209,8 +187,7 @@ char *keeplist;
 }
 
 STR *
-str_new(len)
-int len;
+str_new(int len)
 {
     register STR *str;
     
@@ -228,9 +205,7 @@ int len;
 }
 
 void
-str_grow(str,len)
-register STR *str;
-int len;
+str_grow(register STR *str, int len)
 {
     if (len && str)
 	GROWSTR(&(str->str_ptr), &(str->str_len), len + 1);
@@ -239,9 +214,7 @@ int len;
 /* make str point to what nstr did */
 
 void
-str_replace(str,nstr)
-register STR *str;
-register STR *nstr;
+str_replace(register STR *str, register STR *nstr)
 {
     Safefree(str->str_ptr);
     str->str_ptr = nstr->str_ptr;
@@ -254,8 +227,7 @@ register STR *nstr;
 }
 
 void
-str_free(str)
-register STR *str;
+str_free(register STR *str)
 {
     if (!str)
 	return;
@@ -269,8 +241,7 @@ register STR *str;
 }
 
 int
-str_len(str)
-register STR *str;
+str_len(register STR *str)
 {
     if (!str)
 	return 0;
@@ -283,9 +254,7 @@ register STR *str;
 }
 
 char *
-str_gets(str,fp)
-register STR *str;
-register FILE *fp;
+str_gets(register STR *str, register FILE *fp)
 {
 #if defined(USE_STDIO_PTR) && defined(STDIO_PTR_LVALUE) && defined(STDIO_CNT_LVALUE)
     /* Here is some breathtakingly efficient cheating */
@@ -366,8 +335,7 @@ thats_all_folks:
 }
 
 void
-str_inc(str)
-register STR *str;
+str_inc(register STR *str)
 {
     register char *d;
 
@@ -403,8 +371,7 @@ register STR *str;
 }
 
 void
-str_dec(str)
-register STR *str;
+str_dec(register STR *str)
 {
     register char *d;
 
@@ -436,8 +403,7 @@ register STR *str;
 /* make a string that will exist for the duration of the expression eval */
 
 STR *
-str_mortal(oldstr)
-STR *oldstr;
+str_mortal(STR *oldstr)
 {
     register STR *str = str_new(0);
     static long tmps_size = -1;
@@ -458,8 +424,7 @@ STR *oldstr;
 }
 
 STR *
-str_make(s)
-char *s;
+str_make(char *s)
 {
     register STR *str = str_new(0);
 
@@ -468,8 +433,7 @@ char *s;
 }
 
 STR *
-str_nmake(n)
-double n;
+str_nmake(double n)
 {
     register STR *str = str_new(0);
 
diff --git a/x2p/util.c b/x2p/util.c
index 469beb0..3d3b99a 100644
--- a/x2p/util.c
+++ b/x2p/util.c
@@ -24,8 +24,7 @@ static char nomem[] = "Out of memory!\n";
 
 
 Malloc_t
-safemalloc(size)
-MEM_SIZE size;
+safemalloc(size_t size)
 {
     Malloc_t ptr;
 
@@ -48,9 +47,7 @@ MEM_SIZE size;
 /* paranoid version of realloc */
 
 Malloc_t
-saferealloc(where,size)
-Malloc_t where;
-MEM_SIZE size;
+saferealloc(void *where, size_t size)
 {
     Malloc_t ptr;
 
@@ -74,8 +71,7 @@ MEM_SIZE size;
 /* safe version of free */
 
 Free_t
-safefree(where)
-Malloc_t where;
+safefree(void *where)
 {
 #ifdef DEBUGGING
     if (debug & 128)
@@ -87,10 +83,7 @@ Malloc_t where;
 /* safe version of string copy */
 
 char *
-safecpy(to,from,len)
-char *to;
-register char *from;
-register int len;
+safecpy(char *to, register char *from, register int len)
 {
     register char *dest = to;
 
@@ -103,9 +96,7 @@ register int len;
 /* copy a string up to some (non-backslashed) delimiter, if any */
 
 char *
-cpytill(to,from,delim)
-register char *to, *from;
-register int delim;
+cpytill(register char *to, register char *from, register int delim)
 {
     for (; *from; from++,to++) {
 	if (*from == '\\') {
@@ -124,9 +115,7 @@ register int delim;
 
 
 char *
-cpy2(to,from,delim)
-register char *to, *from;
-register int delim;
+cpy2(register char *to, register char *from, register int delim)
 {
     for (; *from; from++,to++) {
 	if (*from == '\\')
@@ -144,9 +133,7 @@ register int delim;
 /* return ptr to little string in big string, NULL if not found */
 
 char *
-instr(big, little)
-char *big, *little;
-
+instr(char *big, char *little)
 {
     register char *t, *s, *x;
 
@@ -166,10 +153,9 @@ char *big, *little;
 /* copy a string to a safe spot */
 
 char *
-savestr(str)
-char *str;
+savestr(char *str)
 {
-    register char *newaddr = safemalloc((MEM_SIZE)(strlen(str)+1));
+    register char *newaddr = (char *) safemalloc((MEM_SIZE)(strlen(str)+1));
 
     (void)strcpy(newaddr,str);
     return newaddr;
@@ -178,16 +164,13 @@ char *str;
 /* grow a static string to at least a certain length */
 
 void
-growstr(strptr,curlen,newlen)
-char **strptr;
-int *curlen;
-int newlen;
+growstr(char **strptr, int *curlen, int newlen)
 {
     if (newlen > *curlen) {		/* need more room? */
 	if (*curlen)
-	    *strptr = saferealloc(*strptr,(MEM_SIZE)newlen);
+	    *strptr = (char *) saferealloc(*strptr,(MEM_SIZE)newlen);
 	else
-	    *strptr = safemalloc((MEM_SIZE)newlen);
+	    *strptr = (char *) safemalloc((MEM_SIZE)newlen);
 	*curlen = newlen;
     }
 }
diff --git a/x2p/walk.c b/x2p/walk.c
index cb40073..0b40655 100644
--- a/x2p/walk.c
+++ b/x2p/walk.c
@@ -37,12 +37,12 @@ STR * walk _(( int useval, int level, int node, int *numericptr, int minprec ));
 
 
 STR *
-walk(useval,level,node,numericptr,minprec)
-int useval;
-int level;
-register int node;
-int *numericptr;
-int minprec;			/* minimum precedence without parens */
+walk(int useval, int level, register int node, int *numericptr, int minprec)
+           
+          
+                  
+                
+            			/* minimum precedence without parens */
 {
     register int len;
     register STR *str;
@@ -1556,9 +1556,7 @@ sub Pick {\n\
 }
 
 static void
-tab(str,lvl)
-register STR *str;
-register int lvl;
+tab(register STR *str, register int lvl)
 {
     while (lvl > 1) {
 	str_cat(str,"\t");
@@ -1569,9 +1567,7 @@ register int lvl;
 }
 
 static void
-fixtab(str,lvl)
-register STR *str;
-register int lvl;
+fixtab(register STR *str, register int lvl)
 {
     register char *s;
 
@@ -1589,8 +1585,7 @@ register int lvl;
 }
 
 static void
-addsemi(str)
-register STR *str;
+addsemi(register STR *str)
 {
     register char *s;
 
@@ -1602,9 +1597,7 @@ register STR *str;
 }
 
 static void
-emit_split(str,level)
-register STR *str;
-int level;
+emit_split(register STR *str, int level)
 {
     register int i;
 
@@ -1637,11 +1630,7 @@ int level;
 }
 
 int
-prewalk(numit,level,node,numericptr)
-int numit;
-int level;
-register int node;
-int *numericptr;
+prewalk(int numit, int level, register int node, int *numericptr)
 {
     register int len;
     register int type;
@@ -2058,8 +2047,7 @@ int *numericptr;
 }
 
 static void
-numericize(node)
-register int node;
+numericize(register int node)
 {
     register int len;
     register int type;