....
-- Looking for IceConnectionNumber in ICE - found
-- Found X11: /usr/lib/arm-linux-gnueabihf/libX11.so
-- Found OpenGL: /usr/local/lib/libGL.so
-- Found PkgConfig: /usr/bin/pkg-config (found version "0.26")
-- Found EGL: /usr/lib/arm-linux-gnueabihf/libEGL.so (found version "1.4")
-- Found epoxy: /usr/lib/arm-linux-gnueabihf/libepoxy.so

....

-- The following OPTIONAL packages have been found:

 * Qt5Test (required version >= 5.3.0) , Required for building tests
   Required for tests
 * Qt5Xml (required version >= 5.2.0)
 * KF5Auth (required version >= 5.1.0)
 * KF5Codecs (required version >= 5.1.0)
 * KF5GuiAddons (required version >= 5.1.0)
 * KF5DBusAddons (required version >= 5.1.0)
 * KF5ItemViews (required version >= 5.1.0)
 * KF5IconThemes (required version >= 5.1.0)
 * KF5Sonnet (required version >= 5.1.0)
 * KF5TextWidgets (required version >= 5.1.0)
 * KF5Attica (required version >= 5.1.0)
 * KF5Bookmarks (required version >= 5.1.0)
 * KF5JobWidgets (required version >= 5.1.0)
 * KF5Solid (required version >= 5.1.0)
 * KF5Archive (required version >= 5.1.0)
 * KF5Activities , Enable building of KWin with kactivities support
   Enable building of KWin with kactivities support
 * KF5DocTools , Enable building documentation
   Enable building documentation
 * EGL , A platform-agnostic mechanism for creating rendering surfaces for use with other graphics libraries, such as OpenGL|ES and OpenVG. , <https://www.khronos.org/egl/>
   Required to build KWin with EGL support

...


-- The following REQUIRED packages have been found:

 * Qt5Concurrent
 * Qt5Core
 * Qt5DBus
 * Qt5Network (required version >= 5.3.2)
 * Qt5Qml (required version >= 5.3.2)
 * Qt5Gui (required version >= 5.3.2)
 * Qt5Quick
 * Qt5Script
 * Qt5UiTools
 * Qt5Widgets
 * Qt5X11Extras
 * Qt5 (required version >= 5.3.0)
 * KF5Config
 * KF5ConfigWidgets
 * KF5CoreAddons
 * KF5Crash
 * KF5GlobalAccel
 * Gettext
 * KF5I18n
 * KF5Init
 * KF5Notifications
 * KF5Service
 * ECM (required version >= 0.0.9)
 * KF5Plasma
 * KF5WidgetsAddons
 * KF5WindowSystem
 * KF5Completion
 * KF5Declarative
 * KF5KCMUtils
 * KF5KIO
 * KF5NewStuff
 * KF5XmlGui
 * KF5
 * OpenGL , The OpenGL libraries , <http://www.opengl.org>
 * epoxy , libepoxy , <http://github.com/anholt/libepoxy>
   OpenGL dispatch library
 * X11 , X11 libraries , <http://www.x.org>
 * XCB , X protocol C-language Binding , <http://xcb.freedesktop.org>

Building KWin with OpenGL support
-- Looking for include file unistd.h
-- Looking for include file unistd.h - found