Arch Linux

Please test 2.4.9-2 and see if your java cv code builds and runs as expected.

This patch has broken my project:


CMake Error at /usr/share/opencv/OpenCVModules.cmake:120 (message):
The imported target "opencv_java" references the file

"/usr/share/OpenCV/java/libopencv_java249.so"

but this file does not exist. Possible reasons include:

* The file was deleted, renamed, or moved to another location.

* An install or uninstall procedure did not complete successfully.

* The installation package was faulty and contained

"/usr/share/opencv/OpenCVModules.cmake"

but not all the files it references.

Call Stack (most recent call first):
/usr/share/opencv/OpenCVConfig.cmake:49 (include)


I think you must change the file fsh.patch and add the java directory name.

It broke my project too. The path reference in the error message is incorrect.
Instead of this:
/usr/share/OpenCV/java/libopencv_java249.so
It should be this (mind the casing):
/usr/share/opencv/java/libopencv_java249.so

Actually, the absence of a patch has broken your projects, thanks to upstream. The patch you suspect is not applied; take a look at the PKGBUILD. Upstream did not listen to me when I told them about the problems of a mixed-case directory naming scheme. [1]

I chose to abandon the patch the last time I updated the package because it was looking to become a huge maintenance burden due to the sheer size of changes that go into opencv on every other release. However, the only case then was frei0r.

From a quick glance it looks like upstream finally realized the problem and _almost_ solved their mixed-case mess (except corner cases they forgot about). Please confirm with me that /usr/share/OpenCV no longer exists since the 2.4.9 release.

I take it that those of you reporting this are not concerned with the java support, and this update has simply broken your traditional cv setup. Confirm that and I will revert the update. In the meantime, you can install -1 from your local cache if available.

[1] http://code.opencv.org/issues/2512

I confirm both of those. /usr/share/OpenCV doesn't exist in 2.4.9 and the update has broken my traditional (not Java-related) cv setup.

Please test that things are back to normal. I will continue work on this FR in [testing].

My project works again with 2.4.9-3.

A theorically working PKGBUILD can be found at: https://aur4.archlinux.org/packages/opencv-java/
My package does just save Java files, so it does not conflict with the official package.
For the official sources, the edits that should be done for building the Java library are:
- Setting JAVA_HOME (see in prepare())
- Adding Java-related things in makedepends() ('apache-ant' and 'java-environment')