Index: CMakeLists.txt
===================================================================
--- CMakeLists.txt
+++ CMakeLists.txt
@@ -669,7 +669,7 @@
       if("${${variableName}}" STREQUAL "")
         set(value "")
       else()
-        string(REPLACE ";" "\;" value ${${variableName}})
+        string(REPLACE ";" "," value ${${variableName}})
       endif()
       list(APPEND PASSTHROUGH_VARIABLES
         -D${variableName}=${value})
@@ -697,6 +697,7 @@
     USES_TERMINAL_CONFIGURE 1
     USES_TERMINAL_BUILD 1
     USES_TERMINAL_INSTALL 1
+    LIST_SEPARATOR ,
     )
 
   # exclude really-install from main target