erlang: Use Automake SUBDIRS instead of a manual forwarding rule

Previously, lib/erl/Makefile.am would forward rules like "all" and
"clean" to the src subdir by manually invoking a submake.  However,
specifying src as a SUBDIR accomplishes this more easily and also
ensures that other rules like "distclean" work.

git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@1004510 13f79535-47bb-0310-9956-ffa450edef68
1 file changed