set PKG_CONFIG_PATH in cmake

Question

I have built opencv locally and installed it to a local directory (not the system default ). opencv.pc is present under a folder pkgconfig in this local folder. How

Answer 1

You could set PKG_CONFIG_PATH with the CMake line:

set(ENV{PKG_CONFIG_PATH} "$ENV{PKG_CONFIG_PATH}:/my/path/to/pkgconfig")

I did this workaround in this file

Interestingly, it seems CMake 3.1 extends PKG_CONFIG_PATH with some CMake variable see: https://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=3df51470