TERM=dumb
export LANG LC_ALL PAGER TERM TZ
EDITOR=:
-unset VISUAL
-unset EMAIL
-unset LANGUAGE
-unset $(perl -e '
+# A call to "unset" with no arguments causes at least Solaris 10
+# /usr/xpg4/bin/sh and /bin/ksh to bail out. So keep the unsets
+# deriving from the command substitution clustered with the other
+# ones.
+unset VISUAL EMAIL LANGUAGE COLUMNS $(perl -e '
my @env = keys %ENV;
my $ok = join("|", qw(
TRACE
;;
esac
+( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
test -z "$NO_PERL" && test_set_prereq PERL
test -z "$NO_PYTHON" && test_set_prereq PYTHON
test -n "$USE_LIBPCRE" && test_set_prereq LIBPCRE