Depends on PR #7098
With gflags available, glog's compilation behaves differently and
includes gflags specific code. This code allows customizing logging in
programs that use glog, using command command line parameters.
Compile tested: openwrt-18.06 for ipq40xx, ipq806x, x86 and ar71xx
Run tested: Tested on devices running on the above architectures.
Signed-off-by: Amol Bhave <ambhave@fb.com>