Revert "CMAKE_COMPILE_WARNING_AS_ERROR does not seem to work"

This reverts commit 6ce457e.

Author: vszakats

CMakeLists.txt

@@ -47,7 +47,9 @@ set(_picky "")
 
 option(TRURL_WERROR "Turn compiler warnings into errors" OFF)
 if(TRURL_WERROR)
-  if(MSVC)
+  if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.24)
+    set(CMAKE_COMPILE_WARNING_AS_ERROR ON)
+  elseif(MSVC)
     list(APPEND _picky "-WX")
   else()  # llvm/clang and gcc style options
     list(APPEND _picky "-Werror")