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I have an external SDK which has all the libs and includes on.

Now to make it work, I need to set CMAKE_PREFIX_PATH with my path, so I'm trying to set the variable inside of CMake file like this:

set(CMAKE_PREFIX_PATH "/my/path/to/SDK")
But for some reason is not working as I would expect because it's not going to find some packages with the function pkg_check_modules.
On the other hand, I've I'm going into terminal and I will call CMake like this, everything is fine and this's going to work as intended.
cmake -DCMAKE_PREFIX_PATH=/my/path/to/SDK ..
Here it's a part of my CMake file:
cmake_minimum_required(VERSION 2.8.7)
set(PKG_CONFIG_USE_CMAKE_PREFIX_PATH ON)
set(CMAKE_PREFIX_PATH "/my/path/to/SDK")
project(wayland_egl C CXX)
include(FindPkgConfig)
pkg_check_modules(WLCLIENT REQUIRED wayland-webos-client)
include_directories(${WLCLIENT_INCLUDE_DIRS})
Could one of you guys explain to me why is this happening and how can I fix my CMake file to work it properly?
                Did you set the PKG_CONFIG_USE_CMAKE_PREFIX_PATH variable to 1 to indicate to pkg_check_modules to add the paths in CMAKE_PREFIX_PATH to the search?
– Kevin
                Feb 12, 2020 at 12:37
        
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