[Bug-apl] Another trivial g++ 8.1.1 incompatibility

[Chris Moller]

This is the same as the last batch--don't know how I  missed it the first time:

Index: Svar_DB.cc
===================================================================
--- Svar_DB.cc  (revision 1055)
+++ Svar_DB.cc  (working copy)
@@ -316,7 +316,8 @@
                                                del, log);
    if (response)
       {
-        memcpy(&cache, response->get__SVAR_RECORD_IS__record().data(),
+        memcpy(static_cast <void *>(&cache),
+              response->get__SVAR_RECORD_IS__record().data(),
                sizeof(Svar_record));
         delete response;
       }