changed CMake to assume yaml cpp is installed

CMakeLists.txt

@@ -1,26 +1,25 @@
+include(util/CMakeLists.txt)
+
+set(CMAKE_CXX_STANDARD 20)
+
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D__FILENAME__='\"$(subst ${CMAKE_SOURCE_DIR}/,,$(abspath $<))\"'")
+add_definitions(-DLOG_DEBUG)
+
 cmake_minimum_required(VERSION 3.0...3.22)
+
+set(CMAKE_BUILD_TYPE Debug)
+
 project(
   Minigrid2PRISM
   VERSION 0.1
   LANGUAGES CXX)
-set(CMAKE_CXX_STANDARD 20)
 
-include(util/CMakeLists.txt)
-include(FetchContent)
-
-FetchContent_Declare(
-  yaml-cpp
-  GIT_REPOSITORY https://github.com/jbeder/yaml-cpp.git
-  GIT_TAG master
-  OVERRIDE_FIND_PACKAGE
-)
-FetchContent_GetProperties(yaml-cpp)
-if(NOT yaml-cpp_POPULATED)
-  message(STATUS "Fetching yaml-cpp...")
-  FetchContent_Populate(yaml-cpp)
-  add_subdirectory(${yaml-cpp_SOURCE_DIR} ${yaml-cpp_BINARY_DIR})
-endif()
-FetchContent_MakeAvailable(yaml-cpp)
-
-add_executable(main ${SRCS} main.cpp)
+find_package(yaml-cpp)
+
+add_executable(main
+               ${SRCS}
+               main.cpp
+               )
+
 target_link_libraries(main pthread yaml-cpp::yaml-cpp)
+