autogen before cross building
diff --git a/.travis/build.sh b/.travis/build.sh
index d9d3321..f8f78a2 100755
--- a/.travis/build.sh
+++ b/.travis/build.sh
@@ -63,6 +63,7 @@ case "$HOST" in
build_cfarm
;;
sh4-linux-gnu | s390x-linux-gnu )
+ ./autogen.sh
build_cross_linux
;;
*)