win32 build; add -r option

kern/devdraw.c

@@ -1312,7 +1312,7 @@ printmesg(char *fmt, uchar *a, int plsprnt)
 		SET(p);
 		USED(fmt);
 		USED(a);
-		USED(buf);
+		p = buf;
 		USED(p);
 		USED(q);
 		USED(s);

kern/devfs-win32.c

@@ -1,3 +1,8 @@
+/*
+ * Disable Unicode until the calls to FindFirstFile etc
+ * are changed to use wide character strings.
+ */
+#undef UNICODE
 #include	<windows.h>
 #include	<sys/types.h>
 #include	<sys/stat.h>
@@ -593,7 +598,7 @@ fsdirread(Chan *c, uchar *va, int count, ulong offset)
 		d.length = stbuf.st_size;
 		d.type = 'U';
 		d.dev = c->dev;
-		n = convD2M(&d, (char*)va+i, count-i);
+		n = convD2M(&d, (uchar*)va+i, count-i);
 		if(n == BIT16SZ){
 			strcpy(uif->nextname, de);
 			break;
@@ -634,7 +639,7 @@ readdir(char *name, DIR *d)
 		if(FindNextFile(d->handle, &d->wfd) == FALSE)
 			return 0;
 	}
-	strcpy(name, d->wfd.cFileName);
+	strcpy(name, (char*)d->wfd.cFileName);
 	d->index++;
 
 	return 1;

kern/devip-win32.c

@@ -178,7 +178,7 @@ hostlookup(char *host)
 
 	he = gethostbyname(host);
 	if(he != 0 && he->h_addr_list[0]) {
-		p = he->h_addr_list[0];
+		p = (uchar*)he->h_addr_list[0];
 		sprint(buf, "%ud.%ud.%ud.%ud", p[0], p[1], p[2], p[3]);
 	} else
 		strcpy(buf, host);