Log Message:
Import gflags-2.1.2 as devel/gflags.

The gflags package contains a library that implements commandline flags
processing. As such it's a replacement for getopt(). It has increased
flexibility, including built-in support for C++ types like string, and the
ability to define flags in the source file in which they're used.

Package from pkgsrc-wip with bacon4000@gmail.com as the MAINTAINER.
devel/snappy can use this along with other packages in the dependency chain
for caffe.