==> git log -n1 <==
commit 80a37e0782d2d702d52234b62dd4b9ec74fd2c95
Merge: 3d2f72b 4a4c67b
Author: Jisi Liu <liujisi@google.com>
Date:   Tue Aug 15 16:39:12 2017 -0700

    Merge pull request #3495 from pherl/c++11
    
    Add std::forward and std::move autoconf check
==> git describe --tags --dirty <==
v3.4.0
==> git status <==
# HEAD detached at v3.4.0
# Untracked files:
#   (use "git add <file>..." to include in what will be committed)
#
#	conda_build.sh
nothing added to commit but untracked files present (use "git add" to track)
