How to install OpenCV on Arch

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@Judas, how do you install the aur package? I guess you are using yaourt or another pacman wrapper, right? As Steven suggested try to compile everything from scratch.

1. fist download manually the PKGBUILD file from aur
2. go to the path where you have downloaded the file and decompress it
3. get into the uzipped folder
4. open a console in this path
5. and run the following command makepkg -s and wait for the source code to compile. This will create file, the package, with extention .xz
6. when it is done in the same path from the console run pacman -U <name_of_package>.xz in order to install the compiled package

this should be quite straight forward. By modifying the PKGBUILD you might want to include more libraries into the package (e.g. Qt, extra_modules, etc).

If you still have issues I would suggest you to write in the official forum of Antegros, since in the Arch forum they answer only to clean Arch installations.