To build software:
cmake .
make
Good luck!
Recipe for converting a directory:
git mv Makefile Makefile.old
then add a CMakeLists.txt by converting stuff in Makefile to CMake syntax.
Make sure to hook up your new CMakeLists.txt to upper directory by inserting add_subdirectory calls when appropriate.
Look at CMakeLists.txt in /Linux/build and /Linux/project/demo for examples.