[FFmpeg-devel] [PATCH] Fix compilation when only MPEG-1encoder is enabled

[Panagiotis Issaris]

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Hi,

Michael Niedermayer wrote:
> On Thu, May 10, 2007 at 04:06:24PM +0200, Panagiotis Issaris wrote:
> [...]
>> I remember reading about this some years ago, but never saw anyone use
>> it before the codec registration cleanup patches. One thing I'm
>> wondering about though, could there be compilers that are stupid enough
>> to just keep the code there even if the " if(0 and" is there?
> 
> gcc with -O0 ?

Doesn't seem so.

This seems to compile fine with gcc -O0:
int main()
{
    if (0)
        foobar();
}

I also tried with an explicit (0 && some_variable) instead of the pure
if(0). Or is that still an insufficient test?

With friendly regards,
Takis
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