gerris @0.9.2-20131206_5: configure: error: Pointers cannot be stored in doubles on this architecture

[nilason (Nicklas Larsson)]

Configuration fails on macOS 14/arm64 with the message:

checking whether pointers can be stored in doubles... no
configure: error: 
*** Pointers cannot be stored in doubles on this architecture.

The configure testing code that fails:

main () {
  if (sizeof (void *) > sizeof (double))
    return 1;
  return 0;
}

[jmroot (Joshua Root)]

The proximate cause is likely just the missing type signature for main(), but storing pointers in doubles is a pretty horrifying thing to do in the first place.