Hi Thomas, I think your understanding is correct : "#ifdef <undefined switch>"
or "#if defined(<undefined switch>)" Are ok while "#if <undefined switch>" or "#elif <undefined switch>" Lead to the compile error on gcc with current warnings. Best regards, Matthias > >> > > This looks okay to me although I could imagine this issue coming back again > > with ongoing edits that add "ifdef __solaris" or similar. > > > > If I understand this problem correctly (and I might not) the problem > is with "#if <undefined switch>", not with "#ifdef <undefined > switch>". > > ..thomas > > > -Alan
