[116291] trunk/dports/_resources/port1.0/group/debug-1.0.tcl

[Rainer Müller]

On 2014-01-24 18:24, Sean Farley wrote:
> 
> raimue at macports.org writes:
> 
>> On 2014-01-24 17:51, Sean Farley wrote:
>>>
>>> egall at gwmail.gwu.edu writes:
>>>
>>>> Just so it can remove it with the `+debug` variant that it adds, it looks
>>>> like...
>>>
>>> Eric is correct. In hindsight, I am now doubting adding
>>> -mtune=native. Maybe just the -O3 -Ofast etc.?
>>
>> For a debug target, I would expect the contrary. Optimization may
>> reorder code, causing your debugger to jump in weird ways in your
>> high-level code when stepping. Also it will inline code when possible,
>> removing function calls and the corresponding symbols, so you can't
>> break on them anymore.
> 
> So, one of the confusing things about this portgroup is that it adds
> optimization flags by default and then removes them if the +debug
> variant is selected.

Ah, I completely misunderstood this. Now I actually looked at the code.
Sorry, should have checked that earlier.

But why do you want to add optimizations in this port group by default?

Rainer