[Ffmpeg-devel] ffmpeg doesn't compile on Mac OS X anymore...

[Diego Biurrun]

Lina, could you please look into this?  Your patch is causing some
problems...

On Fri, Oct 07, 2005 at 11:28:05PM +0100, Patrice Bensoussan wrote:
> >On Thu, Oct 06, 2005 at 09:15:09PM +0100, Patrice Bensoussan wrote:
> >>
> >> It looks like there are two issues when trying to compile on Mac  
> >> OS X Tiger :
> >>
> >> 1/ When using gcc 3.3, I reach the linking stage but get :
> >>
> >> cc -Wl,-dynamic,-search_paths_first -dynamiclib -Wl,-single_module,-
> >> undefined,dynamic_lookup -flat_namespace -Wl,-install_name,/usr/local/
> >> lib/vhook/null.dylib -g -o null.dylib null.o
> >> ld: flag: -undefined dynamic_lookup can't be used with
> >> MACOSX_DEPLOYMENT_TARGET environment variable set to: 10.1
> >> /usr/bin/libtool: internal link edit command failed
> >> make[1]: *** [null.dylib] Error 1
> >
> >Yes, that's an issue.  You can work around it with
> >
> >export MACOSX_DEPLOYMENT_TARGET=10.3
> >
> >Does anybody know how to fix this properly
> 
> Good question... I've had a quick look at the man page for ld, and
> i'm wondering why we are using -undefined,dynamic_lookup - 
> flat_namespace.
> It looks like this is what is causing this new error to appear.
> Also, wondering if the created binary would actually run on 10.2 if
> we set this variable to 10.3 :/

Umm, removing -flat_namespace does not solve the problem...

> >> 2/ When using gcc 4.0, compilation aborts with the error (this is
> >> only a warning with gcc 3)
> >> make[1]: *** [mathematics.o] Error 1
> >>
> >That's strange, does the lrintf check in configure fail for you then?
> 
> Well not sure how to see this in configure,

put

  set -v
  set -x

before the lrintf check on line 978 and show me the console output.

Oh, you probably want to put

  set +v
  set +x

after the lrint check to get rid of the verbosity again.

Diego