fix build error

src/version.cxx

@@ -30,10 +30,10 @@ namespace NAMESPACE {
     return README;
   }
   std::string logo() {
-    return PROJECT_LOGO;
+    return PACKAGE_LOGO;
   }
   std::string icon() {
-    return PROJECT_ICON;
+    return PACKAGE_ICON;
   }
   const std::string WHAT("#(@) " PACKAGE_STRING);
   const std::string IDENT("$Id: " PACKAGE_STRING);