thrift: fixes compilation issues

Apply upstreamed patches:
https://issues.apache.org/jira/browse/THRIFT-2229
https://issues.apache.org/jira/browse/THRIFT-2367

Fixes:
http://autobuild.buildroot.net/results/efb/efbbae54b5a16b26cac7fcc69ea99bb6f8661fe8/build-end.log
http://autobuild.buildroot.net/results/f83/f837440fdf8b3bddfc6cc548902a0453640fa6b4/build-end.log



[Romain: patch 05 rebased on top of thrift-0.9.1]
Signed-off-by: Romain Naour <romain.naour@openwide.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>