On 11/16/2012 11:52 AM US Central Time, Yauheni Zelenko wrote:

But why warnings flags are mixed with optimization ones? I think these options should be independent.

They are, unfortunately, not independent. Some compilers throw some errors only when the optimization flag is specified. That's the reason why we have both options --enable-strict and --enable-strict=noopt. -- Pavan -- Pavan Balaji http://www.mcs.anl.gov/~balaji