[Libav-user] undefined reference to av_frame_alloc/free

[Gonzalo Garramuno]

On 28/05/14 23:46, Jason Blum wrote:
>
> I shouldn't need to link avutil explicitly to use av_malloc( ), right? 
> Or has that been changed in more recent ffmpeg versions?
>
No, you must link it.  It was always like that.
> Unfortunately I have no idea what is controlling the linking order in 
> a ROS catkin build. I will ask about that in the ROS help mailing lists.
>
Can you print out the verbose command that cmake creates, instead of 
just the parsing of the file as you did before?  That is, VERBOSE=1.