CFFLAGS & CXXFAGS

[nottwy]

In your Makefile, it is：

CFLAGS = -std=gnu99 -O3
CXXFLAGS = -std=c++98 -O3

I have to change them into:

CFLAGS = -std=gnu++11 -O3
CXXFLAGS = -std=c++11 -O3

Then I can compile parts of your code.

But I can't step through the compiling stage of SGA.

There are lost of error information with "Undefine" in it.
I get your code with git clone -b master --recursive https://xxxx.git.