diff -Nurd -x'*~' libidn-1.32.orig/java/src/main/java/gnu/inet/encoding/Makefile.am libidn-1.32/java/src/main/java/gnu/inet/encoding/Makefile.am
--- libidn-1.32.orig/java/src/main/java/gnu/inet/encoding/Makefile.am	2015-07-07 16:59:35.000000000 -0400
+++ libidn-1.32/java/src/main/java/gnu/inet/encoding/Makefile.am	2015-09-06 05:52:12.000000000 -0400
@@ -16,6 +16,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+AM_JAVACFLAGS = -target 1.7 -source 1.7
 JAVAROOT = $(top_builddir)/java/src/main/java
 
 if JAVA