--- a/Makefile.am
+++ b/Makefile.am
@@ -1,3 +1,5 @@
+AUTOMAKE_OPTIONS = foreign
+
 EXTRA_DIST = ChangeLog
 INCLUDES = -I${top_srcdir}/include
 SUBDIRS = doc include src test
--- a/configure.ac
+++ b/configure.ac
@@ -254,6 +254,7 @@ main(void) {
 ]
 , [ AC_MSG_RESULT([yes]) AC_DEFINE(USE_$1, 1, [Define to use $1 with setsockopt()]) ]
 , [ AC_MSG_RESULT([no]) ]
+, [ AC_MSG_RESULT([yes (cross)]) AC_DEFINE(USE_$1, 1, [Define to use $1 with setsockopt()]) ]
 )
 ])