fix for build.h regeneration failure when compiling on Windows
fix for build.h regeneration failure when compiling on Windows

- as the "||" operator is not known to qmake use "|" instead,
  which ensures the code in brackets does never get executed on Windows

MidasPaymentLTD/midascoin,MidasPaymentLTD/midascoin,MidasPaymentLTD/midascoin,MidasPaymentLTD/midascoin,MidasPaymentLTD/midascoin