Ok..
i have read the FM...
problem solved
thanks!
CXX checkpoints.o
In file included from checkpoints.cpp:7:0:
main.h:22:29: fatal error: PoWCore/src/PoW.h: No such file or directory
#include "PoWCore/src/PoW.h"
^
compilation terminated.

You can read more, and then immediately shout. What is wrong?
How did you fix this? I'm having the same issue.
Within the Gapcoin main directory do:
git submodule init
git submodule update
Thanks, I got the GPU miner v3, and I'm getting this on my Linux system with an Nvidia 750ti
./gapminer-gpu: /usr/lib/libOpenCL.so.1: no version information available (required by ./gapminer-gpu)
./gapminer-gpu: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.16' not found (required by ./gapminer-gpu)
./gapminer-gpu: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.17' not found (required by ./gapminer-gpu)