libuv/libuv — pull request #76 by bnoordhuis (2014-12-20 21:04:51+00:00)
Title: build: remove clang and gcc_version gyp defines

The clang and gcc_version defines were used to:

1. Conditionally enable -fvisibility=hidden, a switch introduced in
gcc 4.0. Because 4.2 is the minimum supported version, we can
make it unconditional. People that want to build with older
versions, can use '-Dvisibility='.

2. To conditionally enable -Wno-dollar-in-identifier-extension,
an Apple extension that suppressed warnings about sigils in
dtrace probe names. Dtrace probes were removed in cb514002.

R=@saghul