updated for version 7.0166
diff --git a/src/misc1.c b/src/misc1.c
index 2c42eb9..bef297c 100644
--- a/src/misc1.c
+++ b/src/misc1.c
@@ -8576,7 +8576,7 @@
     }
 
     /* compile the regexp into a program */
-#ifdef MACOS_X /* Can/Should we use CASE_INSENSITIVE_FILENAME instead ?*/
+#ifdef CASE_INSENSITIVE_FILENAME
     regmatch.rm_ic = TRUE;		/* Behave like Terminal.app */
 #else
     regmatch.rm_ic = FALSE;		/* Don't ever ignore case */