Compile with -fvisibility=hidden #21
Merged
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Ref: msgpack/msgpack-ruby#314 (comment)
We experienced some weird segfault in
msgpack_buffer_markwe couldn't explain.Until we noticed that the object being marked wasn't a
MessagePack::Bufferbut aStackFrames::Buffer.Both
msgpackandstackframeswere using the same symbol name to declare their respective buffer type, and the msgpack one was registered first.This is the counterpart of msgpack/msgpack-ruby#317 and generally speaking all gems should compile with
-fvisibility=hidden.