-extern char *tags[TLast], stext[1024];
-extern int tsel, screen, sx, sy, sw, sh, bx, by, bw, bh, mw;
+extern const char *tags[];
+extern char stext[1024];
+extern int screen, sx, sy, sw, sh, bx, by, bw, bh, mw;
+extern unsigned int ntags, numlockmask;