[FFmpeg-devel] [RFC] Alternative way of generating dependencies

François Revol revol
Tue Oct 28 00:55:59 CET 2008

> Hi,
> While I was catching up with the ffmpeg-devel mailinglist yesterday, 
> I 
> stumbled upon a thread about suncc's dependency generation. As every 
> compiler seems to act slightly different, I thought about a more 
> generic 
> way to generate dependencies and came up with the following solution 
> (see 
> attached patch). It's not meant for direct inclusion in SVN and 
> perhaps 
> needs some work to integrate nicely into the current build system, 
> hence 
> the [RFC] in the subject.
> It has been tested and works correctly with the following compilers 
> and 
> preprocessors:
> gcc -E		(GNU, versions 3.4.6 and 4.2.3)

Did you try with 2.95? Yes, some people still do (and must) use it.
I suppose -E should work even there but it'd need some testing...

You might want to match for ^# on sed, to only get # at beginning of 


More information about the ffmpeg-devel mailing list