ln -s x y 2>/dev/null && test -h y 2>/dev/null && test_set_prereq SYMLINKS
rm -f y
+# convert variable from configure to more convenient form
+case "$NOTMUCH_DEFAULT_XAPIAN_BACKEND" in
+ glass)
+ db_ending=glass
+ ;;
+ chert)
+ db_ending=DB
+ ;;
+ *)
+ error "Unknown Xapian backend $NOTMUCH_DEFAULT_XAPIAN_BACKEND"
+esac
# declare prerequisites for external binaries used in tests
test_declare_external_prereq dtach
test_declare_external_prereq emacs