Regen.

diff --git a/tests/wrapper.in b/tests/wrapper.in
index 27d59c0cc6cbc03136f1509aac2bee64bfe78445..6729d74ba6cb7ac88185e16c6d428b6e429a7d10 100755 (executable)
--- a/tests/wrapper.in
+++ b/tests/wrapper.in
@@ -13,9 +13,10 @@ if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
 elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
   set -o posix
 fi
+DUALCASE=1; export DUALCASE # for MKS sh
 
 # Support unset when possible.
-if ((MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
   as_unset=unset
 else
   as_unset=false