[Ffmpeg-devel] [PATCH] fomit-frame-pointer disable when optimizations disabled

Graham Booker ffmpeglist
Mon Jul 24 20:12:58 CEST 2006

On Jul 24, 2006, at 2:01 AM, Rich Felker wrote:

> On Mon, Jul 24, 2006 at 09:35:45AM +1000, Nigel Pearson wrote:
>>> I found that when -fomit-frame-pointer is enabled, it is very
>>> difficult to trace within ffmpeg using gdb.  The following patch
>>> modifies the configure script so that if the user disables
>>> optimizations, then the -fomit-frame-pointer is not used.  Since
>>> omitting the frame pointer is an optimization in my mind, I figured
>>> this would be a good way to switch on it.
>> 1) Agree that it should only be in there if optimising
>> (which hopefully means not debugging).
> Optimization does not imply not debugging. I've never disabled
> optimizations for the sake of debugging, or any other purpose except
> working around or testing for gcc bugs. Disabling -fomit-frame-pointer
> needs to be done by --enable-debug or something like that...

What is wrong with disabling an optimization when the user want  
optimizations disabled?  This patch only disables -fomit-frame- 
pointer if the configure is passed --disable-opts, and no other time.

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