[FFmpeg-devel] Autodetecting support for "PRId64"

Diego Biurrun diego
Mon Dec 3 13:36:38 CET 2007

On Mon, Dec 03, 2007 at 11:51:47AM +0100, Diego Biurrun wrote:
> On Mon, Dec 03, 2007 at 11:16:28AM +0100, carlo.bramix wrote:
> > I tried to compile ffmpeg for working under AROS (see http://aros.sourceforge.net for more details) but I had some initial troubles.
> > The problem was caused by the unrecognized "PRId64" escape from my GCC.
> > Actually I solved it by adding this line:
> > 
> > -DPRIx64=\"%llx\" -DPRId64=\"%lld\" -DPRIu64=\"%llu\" -DPRIdFAST16=\"%hd\" -DPRIdFAST32=\"%ld\"
> > 
> > to OPTFLAGS into generated config.mak.
> > I also discovered that it could also be done by adding them with "--extra-cflags" to configure script.
> > However, my suggestion for the future would be a simple, quick test at configure time for adding this line automatically.
> > It would be nice that configure will do a:
> > "checking /"PRId64/" support..."
> > and if it isn't detected it will add the fix.
> > I understand that it can be fixed manually as I did, but afterall the
> > computer has been made for working instead the man, so why not doing it?
> How about fixing AROS?  You just need to add those definitions to the
> proper system header, inttypes.h I think.

Note that this is not more work than patching FFmpeg, but fixes all
applications that rely on this, not just FFmpeg.


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