PKG_CHECK_MODULES([LIBXML2], [libxml-2.0])
dnl Check for Augeas C library.
-PKG_CHECK_MODULES([AUGEAS], [augeas])
+PKG_CHECK_MODULES([AUGEAS], [augeas >= 1.2.0])
dnl Check for aug_source function, added in Augeas 1.8.0.
old_LIBS="$LIBS"
-LIBS="$AUGEAS_LIBS"
+LIBS="$AUGEAS_LIBS $LIBS"
AC_CHECK_FUNCS([aug_source])
LIBS="$old_LIBS"