patch 8.1.2171: mouse support not always available
Problem: Mouse support not always available.
Solution: Enable mouse support also in tiny version. Do not define
FEAT_MOUSE_XTERM on MS-Windows (didn't really work).
diff --git a/src/option.h b/src/option.h
index aaa9443..254ca6a 100644
--- a/src/option.h
+++ b/src/option.h
@@ -979,7 +979,7 @@
# define TBIS_GIANT 0x20
#endif
EXTERN long p_ttyscroll; // 'ttyscroll'
-#if defined(FEAT_MOUSE) && (defined(UNIX) || defined(VMS))
+#if defined(UNIX) || defined(VMS)
EXTERN char_u *p_ttym; // 'ttymouse'
EXTERN unsigned ttym_flags;
# define TTYM_XTERM 0x01