diff --git a/src/os_win32.h b/src/os_win32.h
index ce6f6d4..42cbab5 100644
--- a/src/os_win32.h
+++ b/src/os_win32.h
@@ -57,14 +57,11 @@
 
 #define FEAT_SHORTCUT		/* resolve shortcuts */
 
-#if !defined(__MINGW32__) \
-	&& !defined(__CYGWIN__) \
-	&& (!defined(__BORLANDC__) || __BORLANDC__ >= 0x550) \
+#if (!defined(__BORLANDC__) || __BORLANDC__ >= 0x550) \
 	&& (!defined(_MSC_VER) || _MSC_VER > 1020)
 /*
  * Access Control List (actually security info).
- * Mingw and Cygwin don't have the acl stuff.
- * Borland only in version 5.5 and later.
+ * Borland has the acl stuff only in version 5.5 and later.
  * MSVC in 5.0, not in 4.2, don't know about 4.3.
  */
 # define HAVE_ACL