diff --git a/winsup/Makefile.common b/winsup/Makefile.common
index ea2b004a5..8e5bbda9d 100644
--- a/winsup/Makefile.common
+++ b/winsup/Makefile.common
@@ -18,7 +18,6 @@ override srcdir:=${shell cd $(srcdir); pwd}
 ifneq (,${filter-out /%,$(srcdir)})
     updir:=$(srcdir)/..
     updir1:=$(updir)/..
-    aux_dir:=$(updir)/../..
 else
     updir:=${patsubst %:::,%,${patsubst %/:::,%,$(dir $(srcdir)):::}}
 ifneq (,${findstring /,$(updir)})
@@ -26,11 +25,6 @@ ifneq (,${findstring /,$(updir)})
 else
     updir1:=$(updir)/..
 endif
-ifneq (,${findstring /,$(updir1)})
-    aux_dir:=${patsubst %:::,%,${patsubst %/:::,%,$(dir $(updir1)):::}}
-else
-    aux_dir:=$(updir1)/..
-endif
 endif
 
 pwd:=${shell pwd}