Get rid of aclocal warning:
/usr/share/aclocal/KXL.m4:6: warning: underquoted definition of AM_PATH_KXL
--- a/KXL.m4
+++ b/KXL.m4
@@ -5,3 +5,3 @@
 dnl
-AC_DEFUN(AM_PATH_KXL,
+AC_DEFUN([AM_PATH_KXL],
 [dnl