/MP flag with VS2005


New member
Anyone using the /MP flag with VS2k5 to force multi-threaded builds? It gives a nice saving in compile time, but it seems to suffer from a weird problem where it will decide the project needs to do a rebuild-all every time it compiles. Take the flag off and after a further rebuild it will be back to normal.

I realise this is an unsupported feature in 2k5, but I can't seem to find anything online about this problem.