--- etags.c.orig	2011-04-05 05:46:44.000000000 +0200
+++ etags.c	2011-08-24 11:39:31.512910651 +0200
@@ -4112,6 +4112,9 @@
       if (LOOKING_AT_NOCASE (dbp, "recursive"))
 	dbp = skip_spaces (dbp);
 
+      if (LOOKING_AT_NOCASE (dbp, "pure"))
+	dbp = skip_spaces (dbp);
+
       switch (lowcase (*dbp))
 	{
 	case 'i':