Fixed bug due to which pru-gcc was called with incorrect include path…

…, changed set_target_properties with target_compile_definitions

CMakeLists.txt

@@ -66,7 +66,7 @@ ADD_FLEX_BISON_DEPENDENCY(lexer parser)
 
 # Add executables
 add_executable(${PROJECT_NAME}-${CMAKE_PROJECT_VERSION} ${PROJECT_FILES} ${BISON_parser_OUTPUTS} ${FLEX_lexer_OUTPUTS})
-set_target_properties(${PROJECT_NAME}-${CMAKE_PROJECT_VERSION} PROPERTIES COMPILE_FLAGS "-DINSTALL_PATH=${CMAKE_INSTALL_PREFIX}" COMPILE_FLAGS "-DVERSION_NUMBER=${CMAKE_PROJECT_VERSION}")
+target_compile_definitions(${PROJECT_NAME}-${CMAKE_PROJECT_VERSION} PRIVATE INSTALL_PATH=${CMAKE_INSTALL_PREFIX} VERSION_NUMBER=${CMAKE_PROJECT_VERSION})
 target_include_directories(${PROJECT_NAME}-${CMAKE_PROJECT_VERSION} PUBLIC 
   $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
   $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/third-party>