Add boost.m4

Signed-off-by: LAN Xingcan <lanxingcan@gmail.com>
Add c++11 check

Signed-off-by: LAN Xingcan <lanxingcan@gmail.com>
Use $PROJECT_ROOT/m4 for local m4 dir

This allow VCS to neatly ignore build-aux/*

Signed-off-by: LAN Xingcan <lanxingcan@gmail.com>
Add clang_complete_setup.sh

Signed-off-by: LAN Xingcan <lanxingcan@gmail.com>
add example

Signed-off-by: LAN Xingcan <lanxingcan@gmail.com>