diff --git a/configure.ac b/configure.ac
index 556493f..ff6af70 100644
--- a/configure.ac
+++ b/configure.ac
@@ -27,7 +27,7 @@ AC_CANONICAL_BUILD
 AC_CANONICAL_HOST
 AC_ISC_POSIX
 
-AM_INIT_AUTOMAKE(1.6 dist-bzip2)
+AM_INIT_AUTOMAKE(1.6 foreign subdir-objects dist-bzip2)
 AM_CONFIG_HEADER(config.h)
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])