Use more libstdc++ specific macro
authorTommy Nguyen <remyabel@gmail.com>
Mon, 17 Jul 2017 20:03:48 +0000 (13:03 -0700)
committerFacebook Github Bot <facebook-github-bot@users.noreply.github.com>
Mon, 17 Jul 2017 20:08:14 +0000 (13:08 -0700)
commit38916b961dd38daaec5df57c1eff94b88aff9375
tree3aa9ae12f4963e8b70c1a9408cae717b6161a653
parent0661c282f72d924c69b969f2f3c15dd1d5851917
Use more libstdc++ specific macro

Summary:
- The __GNUC__ macro is used by other compilers like Clang and
  ICC, but ext/stdio_filebuf.h is a libstdc++ only extension.

fixes #636
Closes https://github.com/facebook/folly/pull/637

Reviewed By: yfeldblum

Differential Revision: D5434532

Pulled By: Orvid

fbshipit-source-id: ce4f966a74aa9f82ae907c67807ac87ec1588173
folly/experimental/symbolizer/Symbolizer.cpp