factor out paths to demo config files

Signed-off-by: Gwenn Le Bihan <[email protected]>

Author: gwennlbh

CMakeLists.txt

@@ -146,12 +146,13 @@ endif(BUILD_PYTHON_INTERFACE)
 macro(create_demo source)
 
   set(demo_name ${PROJECT_NAME}_${source})
+  set(DEMO_ROOT "${PROJECT_SOURCE_DIR}/demos")
   add_executable(${demo_name} demos/${source}.cpp)
   target_link_libraries(${demo_name} ${PROJECT_NAME})
   target_compile_definitions(
     ${demo_name}
-    PUBLIC CONFIG_SOLO12_YAML="${PROJECT_SOURCE_DIR}/demos/config_solo12.yaml"
-    PUBLIC CONFIG_TESTBENCH_YAML="${PROJECT_SOURCE_DIR}/demos/config_testbench.yaml")
+    PUBLIC CONFIG_SOLO12_YAML="${DEMO_ROOT}/config_solo12.yaml"
+    PUBLIC CONFIG_TESTBENCH_YAML="${DEMO_ROOT}/config_testbench.yaml")
   install(TARGETS ${demo_name} DESTINATION bin)
 
 endmacro(create_demo source)