Re: [bug #40226] Weird failure on Windows with OUTPUT_SYNC_TARGET

[Paul Smith]

On Sun, 2013-11-24 at 12:35 +0200, Eddy Petrișor wrote:
> Since you just worked on this, and the new type overwrites in case of
> repetition, does it make sense to overwrite instead of error? I think
> that for profiling this type of behaviour would be better.
> 
Sorry, but I didn't understand that.

For the current options, I definitely want to allow for multiple
instances without an error.  Consider if some setting for -O was defined
in the MAKEFLAGS environment variable, and another setting was defined
on the command line, for example, overriding it.  This is a common and
expected situation and we don't want to throw an error.