Index: groff-1.20.1/src/roff/nroff/nroff.sh
===================================================================
--- groff-1.20.1.orig/src/roff/nroff/nroff.sh	2010-08-23 15:04:18.000000000 +0200
+++ groff-1.20.1/src/roff/nroff/nroff.sh	2010-08-23 15:46:28.313156532 +0200
@@ -41,7 +41,7 @@
   IBM-1047)
     Tloc=cp1047 ;;
   *)
-    case "${LC_ALL-${LC_CTYPE-${LANG}}}" in
+    case "${LC_ALL:-${LC_CTYPE:-${LANG}}}" in
       *.UTF-8)
         Tloc=utf8 ;;
       iso_8859_1 | *.ISO-8859-1 | *.ISO8859-1 | \