-(set +x; test -n "`(LANG=C; export LANG) 2>&1`") &&
- { $as_unset LANG || test "${LANG+set}" != set; } ||
- { LANG=C; export LANG; }
-(set +x; test -n "`(LC_ALL=C; export LC_ALL) 2>&1`") &&
- { $as_unset LC_ALL || test "${LC_ALL+set}" != set; } ||
- { LC_ALL=C; export LC_ALL; }
-(set +x; test -n "`(LC_TIME=C; export LC_TIME) 2>&1`") &&
- { $as_unset LC_TIME || test "${LC_TIME+set}" != set; } ||
- { LC_TIME=C; export LC_TIME; }
-(set +x; test -n "`(LC_CTYPE=C; export LC_CTYPE) 2>&1`") &&
- { $as_unset LC_CTYPE || test "${LC_CTYPE+set}" != set; } ||
- { LC_CTYPE=C; export LC_CTYPE; }
-(set +x; test -n "`(LANGUAGE=C; export LANGUAGE) 2>&1`") &&
- { $as_unset LANGUAGE || test "${LANGUAGE+set}" != set; } ||
- { LANGUAGE=C; export LANGUAGE; }
-(set +x; test -n "`(LC_COLLATE=C; export LC_COLLATE) 2>&1`") &&
- { $as_unset LC_COLLATE || test "${LC_COLLATE+set}" != set; } ||
- { LC_COLLATE=C; export LC_COLLATE; }
-(set +x; test -n "`(LC_NUMERIC=C; export LC_NUMERIC) 2>&1`") &&
- { $as_unset LC_NUMERIC || test "${LC_NUMERIC+set}" != set; } ||
- { LC_NUMERIC=C; export LC_NUMERIC; }
-(set +x; test -n "`(LC_MESSAGES=C; export LC_MESSAGES) 2>&1`") &&
- { $as_unset LC_MESSAGES || test "${LC_MESSAGES+set}" != set; } ||
- { LC_MESSAGES=C; export LC_MESSAGES; }
+
+# Work around bugs in pre-3.0 UWIN ksh.
+$as_unset ENV MAIL MAILPATH
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+for as_var in \
+ LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \
+ LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \
+ LC_TELEPHONE LC_TIME
+do
+ if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then
+ eval $as_var=C; export $as_var
+ else
+ $as_unset $as_var
+ fi
+done
+
+# Required to use basename.
+if expr a : '\(a\)' >/dev/null 2>&1; then
+ as_expr=expr
+else
+ as_expr=false
+fi
+
+if (basename /) >/dev/null 2>&1 && test "X`basename / 2>&1`" = "X/"; then
+ as_basename=basename
+else
+ as_basename=false
+fi