facebook/hhvm — pull request #2833 by adrianlang (2014-06-02 13:38:39+00:00)
Title: Correct arg type in Scanner::read declaration

Flex uses yy_size_t since 2.5.36 (see [1]). This fixes compilation on
an amd64 Debian Jessie for me.

[1] http://sourceforge.net/p/flex/flex/ci/9ba3187a537d6a58d345f2874d06087fd4050399/