WIP: more proper

Signed-off-by: Máté Tokodi [email protected]

Author: matetokodi

build/walrus.cmake

@@ -71,7 +71,7 @@ IF (WALRUS_GC)
         SET (CMAKE_CXX_COMPILER_ID "Clang")
     ENDIF()
     ADD_SUBDIRECTORY (third_party/GCutil)
-    IF (RESET_COMPILER_ID)
+    IF (DEFINED RESET_COMPILER_ID)
         SET (CMAKE_CXX_COMPILER_ID ${RESET_COMPILER_ID})
     ENDIF()
     SET (WALRUS_LIBRARIES ${WALRUS_LIBRARIES} gc-lib)