How to build gatttool

[arkadiy-telegin]

Could you please add the instructions to build the gatttool to the README.md?

After building the main package as described in README.md, I tried to build examples/gatttool using the same commands:

cd examples/gatttool
mkdir build && cd build
cmake ..
make

However when running cmake .. it produces the following error:

CMake Error at /usr/share/cmake/Modules/FindPkgConfig.cmake:890 (message):
  None of the required 'gattlib' found
Call Stack (most recent call first):
  CMakeLists.txt:26 (pkg_search_module)

Thanks!

[HTCmivi]

In your build directory you should be able to run the code from the terminal directly ->
/build# ./examples/discover/discover D2:1F:73:D5:6A:81
To access gattlib outside of the repo, type ->
sudo make install
This will install the library in the expected folder (usr/local/lib)
Then you need to ensure that usr/local/lib is in your library path ->
export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/local/lib"
With that the library should be available and the "None of the required 'gattlib' found" error should not appear again.