Quote Originally Posted by high_flyer View Post
The link error does not complain about not finding the libs - but not finding references in them.
This is probably due to wrong version of the libs.
You can use grep to see if the symbols really are missing in the respective libs.
Yes they are in.

nm /home/tang/Projects/OE/build/Aips/../tmp/sysroots/armv7a-angstrom-linux-gnueabi/usr/lib/libgplayer.a | grep gplayer
00000394 T gplayer
00000000 t gplayer_callback
nm ../tmp/sysroots/armv7a-angstrom-linux-gnueabi/usr/lib/libavformat.so |grep av_register_all
00016910 T av_register_all