In revision 4996 of pjproject I get a linking errors when building after I configured with the flag: --disable-video The linking errors I get is: /some-path/pjsip/lib/libpjsua2-x86_64-unknown-linux-gnu.a(media.o): In function `pj::VideoWindow::getInfo() const': media.cpp:(.text+0xe71c): undefined reference to `pjsua_vid_win_get_info' /some-path/pjsip/lib/libpjsua2-x86_64-unknown-linux-gnu.a(media.o): In function `pj::VideoWindow::Show(bool)': media.cpp:(.text+0xeb1f): undefined reference to `pjsua_vid_win_set_show' /some-path/pjsip/lib/libpjsua2-x86_64-unknown-linux-gnu.a(media.o): In function `pj::VideoWindow::setPos(pj::MediaCoordinate const&)': media.cpp:(.text+0xeecd): undefined reference to `pjsua_vid_win_set_pos' /some-path/pjsip/lib/libpjsua2-x86_64-unknown-linux-gnu.a(media.o): In function `pj::VideoWindow::setSize(pj::MediaSize const&)': media.cpp:(.text+0xf2ad): undefined reference to `pjsua_vid_win_set_size' /some-path/pjsip/lib/libpjsua2-x86_64-unknown-linux-gnu.a(media.o): In function `pj::VideoWindow::rotate(int)': media.cpp:(.text+0xf64b): undefined reference to `pjsua_vid_win_rotate' /some-path/pjsip/lib/libpjsua2-x86_64-unknown-linux-gnu.a(media.o): In function `pj::VideoWindow::setWindow(pj::VideoWindowHandle const&)': media.cpp:(.text+0xfa05): undefined reference to `pjsua_vid_win_set_win' It works fine in revision 4995. Cheers, Dan