[cling] Enable conforming preprocessor with MSVC

hahnjo · devajithvs · commit 9c7b3bc0d2e2 · 2024-08-28T17:44:36.000+02:00
diff --git a/interpreter/cling/CMakeLists.txt b/interpreter/cling/CMakeLists.txt
@@ -249,6 +249,7 @@ endif()
 
 if(MSVC)
   add_definitions(/DNOMINMAX)
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /Zc:preprocessor")
 endif()
 
 if (APPLE)
