Bug#721894: libav: FTBFS with opencv 2.4

[Sebastian Ramacher]

Control: reassign -1 libopencv-dev 2.4.6.1+dfsg-0exp2
Control: retitle -1 libopencv-dev: broken pkg-config file, causes other packages to FTBFS
Control: severity -1 serious
Control: affects -1 src:libav
Control: forwarded -1 http://code.opencv.org/issues/1925

On 2013-09-06 09:37:48, Nobuhiro Iwamatsu wrote:
> Hi,
> 
> output of "pkg-config --cflags --libs libopencv" is following:
> 
> ---
> iwamatsu at debian:~/opencv/libav/libav-9.8$ pkg-config --cflags --libs opencv
> -I/usr/include/opencv  /usr/lib/x86_64-linux-gnu/libopencv_calib3d.so
> /usr/lib/x86_64-linux-gnu/libopencv_contrib.so
> /usr/lib/x86_64-linux-gnu/libopencv_core.so
> /usr/lib/x86_64-linux-gnu/libopencv_features2d.so
> /usr/lib/x86_64-linux-gnu/libopencv_flann.so
> /usr/lib/x86_64-linux-gnu/libopencv_gpu.so
> /usr/lib/x86_64-linux-gnu/libopencv_highgui.so
> /usr/lib/x86_64-linux-gnu/libopencv_imgproc.so
> /usr/lib/x86_64-linux-gnu/libopencv_legacy.so
> /usr/lib/x86_64-linux-gnu/libopencv_ml.so
> /usr/lib/x86_64-linux-gnu/libopencv_objdetect.so
> /usr/lib/x86_64-linux-gnu/libopencv_photo.so
> /usr/lib/x86_64-linux-gnu/libopencv_stitching.so
> /usr/lib/x86_64-linux-gnu/libopencv_superres.so
> /usr/lib/x86_64-linux-gnu/libopencv_ts.so
> /usr/lib/x86_64-linux-gnu/libopencv_video.so
> /usr/lib/x86_64-linux-gnu/libopencv_videostab.so
> ---
> 
> Changes from opencv 2.3, opencv.pc format has been changed.
> Opencv2.4 came to include the path to the library and does not use -l and -L.
> 
> opencv2.3:
> ---
> Name: OpenCV
> Description: Open Source Computer Vision Library
> Version: 2.3.1
> Libs: -L${libdir} -lopencv_core -lopencv_imgproc -lopencv_highgui
> -lopencv_ml -lopencv_video -lopencv_features2d -lopencv_calib3d
> -lopencv_objdetect -lopencv_contrib -lopencv_legacy -lopencv_flann
> Cflags: -I${includedir_old} -I${includedir_new}
> ---
> 
> opencv2.4:
> ---
> Name: OpenCV
> Description: Open Source Computer Vision Library
> Version: 2.4.6.1
> Libs:  ${exec_prefix}/lib/x86_64-linux-gnu/libopencv_calib3d.so
> ${exec_prefix}/lib/x86_64-linux-gnu/libopencv_contrib.so
> ${exec_prefix}/lib/x86_64-linux-gnu/libopencv_core.so
> ${exec_prefix}/lib/x86_64-linux-gnu/libopencv_features2d.so
> ${exec_prefix}/lib/x86_64-linux-gnu/libopencv_flann.so
> ${exec_prefix}/lib/x86_64-linux-gnu/libopencv_gpu.so
> ${exec_prefix}/lib/x86_64-linux-gnu/libopencv_highgui.so
> ${exec_prefix}/lib/x86_64-linux-gnu/libopencv_imgproc.so
> ${exec_prefix}/lib/x86_64-linux-gnu/libopencv_legacy.so
> ${exec_prefix}/lib/x86_64-linux-gnu/libopencv_ml.so
> ${exec_prefix}/lib/x86_64-linux-gnu/libopencv_objdetect.so
> ${exec_prefix}/lib/x86_64-linux-gnu/libopencv_photo.so
> ${exec_prefix}/lib/x86_64-linux-gnu/libopencv_stitching.so
> ${exec_prefix}/lib/x86_64-linux-gnu/libopencv_superres.so
> ${exec_prefix}/lib/x86_64-linux-gnu/libopencv_ts.so
> ${exec_prefix}/lib/x86_64-linux-gnu/libopencv_video.so
> ${exec_prefix}/lib/x86_64-linux-gnu/libopencv_videostab.so
> Cflags: -I${includedir_old} -I${includedir_new}
> ---

That's wrong and broken. That's a bug in opencv, not in libav. Here is
the uptream bug report: http://code.opencv.org/issues/1925.

Fixing opencv's pkg-config file makes libav build again.

Reassigning this bug to libopencv-dev, raising the severity and marking
libav as affected.

Regards
-- 
Sebastian Ramacher
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 836 bytes
Desc: Digital signature
URL: <http://lists.alioth.debian.org/pipermail/pkg-multimedia-maintainers/attachments/20130906/5ff58a4b/attachment.sig>