#!/bin/sh
# Case-insensitive grep with a 0-size input file would fail in grep up to 2.6.3
. "${srcdir=.}/init.sh"; path_prepend_ ../src

require_en_utf8_locale_

LC_ALL=en_US.UTF-8
export LC_ALL

echo x | returns_ 1 grep -f /dev/null || fail=1
echo x | returns_ 1 grep -if /dev/null || fail=1
echo x | returns_ 1 grep -Ff /dev/null || fail=1
echo x | returns_ 1 grep -Fif /dev/null || fail=1

returns_ 1 grep -f /dev/null < /dev/null || fail=1
returns_ 1 grep -if /dev/null < /dev/null || fail=1
returns_ 1 grep -Ff /dev/null < /dev/null || fail=1
returns_ 1 grep -Fif /dev/null < /dev/null || fail=1

Exit $fail