[FFmpeg-cvslog] r16488 - in trunk: configure libavutil/mem.c

[Måns Rullgård]

Uoti Urpala <uoti.urpala at pp1.inet.fi> writes:

> On Sun, 2009-01-11 at 17:37 +0000, M?ns Rullg?rd wrote:
>> Ramiro Polla <ramiro at lisha.ufsc.br> writes:
>> > The purpose is that a plain ./configure with gcc 2.95 should work or at 
>> > least warn the user that he'll encounter problems with SSE code. It used 
>> > to be silently disabled in cpuid.c, now it'll be explicit.
>> 
>> The problem, as I've understood it, is not with SSE as such, but that
>> certain functions in libavcodec, which happen to use SSE, don't work
>> correctly when built with gcc 2.95.
>> 
>> Either way, checking the value of __GNUC__ in configure is just silly.
>> It can just as easily be done in the code.
>
> Where in the code? If you mean adding a check to every function that
> uses SSE, or manually inspecting them all and placing checks in some of
> them, that can certainly not be done as easily and not without
> cluttering the code.

What is the specific feature this code requires which gcc 2.95 doesn't
provide?

-- 
M?ns Rullg?rd
mans at mansr.com