dnl Process this file with autoconf to produce a configure script.
-AC_INIT(ocaml-augeas,0.4)
+AC_CONFIG_MACRO_DIR([m4])
+
+AC_INIT(ocaml-augeas,0.5)
dnl Check for basic C environment.
AC_PROG_CC
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 $LIBS"
+AC_CHECK_FUNCS([aug_source])
+LIBS="$old_LIBS"
dnl Produce output files.
AC_CONFIG_HEADERS([config.h])