diff -Nuar a/config.c b/config.c
--- a/config.c	2017-10-12 16:05:41.000000000 +0200
+++ b/config.c	2017-10-14 18:52:56.829467653 +0200
@@ -432,7 +432,9 @@
 	int i;
 
 	/* Check if fname is '.' or '..'; if so, return false */
-	if (fname[0] == '.' && (!fname[1] || (fname[1] == '.' && !fname[2])))
+  /* Don't include 'hidden' files either; this breaks Gentoo
+     portage config file management http://bugs.gentoo.org/87683 */
+  if (fname[0] == '.')
 		return 0;
 
 	/* Check if fname is ending in a taboo-extension; if so, return false */