cmake: Only install graphqljson when USE_RAPIDJSON is set

Signed-off-by: Marc Bodmer <marc.bodmer@securiton.ch>

Author: mbodmer

CMakeLists.txt

@@ -155,12 +155,20 @@ endif()
 
 install(TARGETS
     graphqlservice
-    graphqljson
   EXPORT cppgraphqlgen-targets
   RUNTIME DESTINATION bin
   ARCHIVE DESTINATION lib
   LIBRARY DESTINATION lib)
 
+if(USE_RAPIDJSON)
+  install(TARGETS
+      graphqljson
+    EXPORT cppgraphqlgen-targets
+    RUNTIME DESTINATION bin
+    ARCHIVE DESTINATION lib
+    LIBRARY DESTINATION lib)
+endif()
+
 set(CMAKE_INSTALL_TOOLSDIR ${CMAKE_INSTALL_PREFIX}/bin/${PROJECT_NAME}
   CACHE PATH "Install schemagen to this directory.")