THRIFT-901. hs: Allow the bindings to compile without -fglasgow-exts and with -Wall -Werror

This patch makes the bindings compile with pedantic warning levels, and individually declares each required language extension.

Patch: Christian Lavoie

git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@998955 13f79535-47bb-0310-9956-ffa450edef68
8 files changed