Address warnings issued by the MSVC++ compiler

Modules/pcremodule.c

@@ -193,7 +193,6 @@ PyPcre_compile(self, args)
 	PyObject *dictionary;
 	char *pattern;
 	const char *error;
-	int num_zeros, i, j;
 	
 	int options, erroroffset;
 	if (!PyArg_ParseTuple(args, "siO!", &pattern, &options,

Modules/pypcre.c

@@ -3044,8 +3044,8 @@ if (md->off_num)    free(md->off_num);
 if (md->offset_top) free(md->offset_top); 
 if (md->r1)         free(md->r1); 
 if (md->r2)         free(md->r2); 
-if (md->eptr)       free(md->eptr); 
-if (md->ecode)      free(md->ecode);
+if (md->eptr)       free((char *)md->eptr); 
+if (md->ecode)      free((char *)md->ecode);
 return 0;
 }
 

Python/import.c

@@ -858,7 +858,7 @@ find_module(name, path, buf, buflen, p_fp)
 	}
 	else if (PyString_Check(path)) {
 		/* Submodule of frozen package */
-		if (PyString_Size(path) + 1 + strlen(name) >= buflen) {
+		if (PyString_Size(path) + 1 + strlen(name) >= (unsigned int)buflen) {
 			PyErr_SetString(PyExc_ImportError,
 					"full frozen module name too long");
 			return NULL;

Python/mystrtoul.c

@@ -129,7 +129,7 @@ int		base;
 	result = result * base + c;
 #ifndef MPW
 	if(base == 10) {
-		if(((long)(result - c) / base != temp))	/* overflow */
+		if(((long)(result - c) / base != (long)temp))	/* overflow */
 			ovf = 1;
 	}
 	else {