C++ – Add the installation prefix of “Qt5Widgets” to CMAKE_PREFIX_PATH

c++cmakeqt

I don't know a lot about cmake, I'm trying to build a client using cmake and Qt. Getting the following error:

CMake Error at alethzero/CMakeLists.txt:26 (find_package): By not
providing "FindQt5Widgets.cmake" in CMAKE_MODULE_PATH this project
has asked CMake to find a package configuration file provided by
"Qt5Widgets", but CMake did not find one.

Could not find a package configuration file provided by "Qt5Widgets"
with any of the following names:

Qt5WidgetsConfig.cmake
qt5widgets-config.cmake

Add the installation prefix of "Qt5Widgets" to CMAKE_PREFIX_PATH or
set "Qt5Widgets_DIR" to a directory containing one of the above
files. If "Qt5Widgets" provides a separate development package or
SDK, be sure it has been installed.

— Configuring incomplete, errors occurred!

As far as I understand, I need to add the QT path to CMake. How do I do it? I have Qt installed in /home/user/Programs. All the explanations I find are "just do this or that". I need the exact Terminal commands so I can just learn how to do it in the future.

Thanks!

UPDATE: export CMAKE_PREFIX_PATH=/home/user/Programs did not help me.

Best Solution

Well, here you have a solution for Windows: How to find qt5 CMake module on windows

set (CMAKE_PREFIX_PATH "C:\\Qt\\Qt5.0.1\\5.0.1\\msvc2010\\")

For your environment, I think you will have to change the path where Qt is located...

Maybe this will help you:
https://github.com/Cockatrice/Cockatrice/issues/205

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