\"unread\"]}]"
test_begin_subtest "Search message: json, 64-bit timestamp"
-if [ $NOTMUCH_HAVE_64BIT_TIME_T -ne 1 ]; then
+if [ "${NOTMUCH_HAVE_64BIT_TIME_T-0}" != "1" ]; then
test_subtest_known_broken
fi
add_message "[subject]=\"json-search-64bit-timestamp-subject\"" "[date]=\"Tue, 01 Jan 2999 12:00:00 -0000\"" "[body]=\"json-search-64bit-timestamp-message\""