-dnl Check for Augeas.
-AC_CHECK_LIB([augeas],[aug_match],,[
- AC_MSG_ERROR([Augeas library not found])
- ])
-
-dnl Check for functions not available in earlier versions of Augeas.
-AC_CHECK_FUNC([aug_load aug_defvar aug_defnode])
+dnl Check for Augeas (now optional).
+AC_CHECK_LIB([augeas],[aug_match],[
+ LIBS="-laugeas $LIBS"
+ have_augeas=yes
+ dnl Check for functions not available in earlier versions of Augeas.
+ AC_CHECK_FUNCS([aug_load aug_defvar aug_defnode])
+ ],[have_augeas=no])
+if test "x$have_augeas" = "xyes"; then
+ AC_DEFINE([HAVE_AUGEAS],[1],[Define to 1 if you have Augeas])
+fi