In autogen.sh, use 'aclocal --system-acdir' rather than 'aclocal --acdir'.
'--acdir' was deprecated in automake 1.11 and removed in automake 1.13.
#!/bin/sh -e
-/usr/bin/aclocal --acdir=..
+/usr/bin/aclocal --system-acdir=..
/usr/bin/autoconf -f
exec /bin/rm -rf autom4te.cache
#!/bin/sh -e
-/usr/bin/aclocal --acdir=..
+/usr/bin/aclocal --system-acdir=..
/usr/bin/autoconf -f
exec /bin/rm -rf autom4te.cache
#!/bin/sh -e
-/usr/bin/aclocal --acdir=..
+/usr/bin/aclocal --system-acdir=..
/usr/bin/autoconf -f
exec /bin/rm -rf autom4te.cache