missing dependency checks for examples

../qt5/configure -confirm-license -prefix /usr -hostprefix /opt/emlix/test -hostbindir /opt/emlix/test/bin -hostdatadir /opt/emlix/test -bindir /usr/bin -libdir /usr/lib -libexecdir /usr/libexec -headerdir /usr/include/qt5 -archdatadir /usr/lib/qt5 -datadir /usr/share/qt5 -plugindir /usr/lib/qt5/plugins -importdir /usr/lib/qt5/imports -translationdir /usr/share/qt5/translations -xplatform emlix/linux-i386-g++ -release -opensource -shared -pch -pkg-config -platform linux-g++ -plugin-sql-sqlite -v -no-rpath -nomake tools -sysroot /opt/emlix/test/sysroot -no-sse2 -examplesdir /usr/qt5/examples -make examples -skip svg -skip activeqt -skip location -skip wayland -skip 3d -skip graphicaleffects -skip quickcontrols -skip x11extras -skip macextras -skip winextras -skip androidextras -skip webengine -skip canvas3d -skip webview -skip quickcontrols2 -skip purchasing -skip charts -skip datavis3d -skip virtualkeyboard -skip gamepad -skip speech -skip networkauth -no-gui -no-widgets -alsa -no-cups -dbus-linked -no-directfb -fontconfig -system-freetype -glib -no-gstreamer -no-iconv -no-icu -system-libjpeg -system-libpng -openssl-linked -system-pcre -system-sqlite -tslib -libudev -no-xcb -no-xinput2 -no-xrender -system-zlib

make[3]: Leaving directory `/tmp/e2/build/build/qtbase/examples/embedded'
cd gui/ && ( test -e Makefile || /tmp/e2/build/build/qtbase/bin/qmake -o Makefile /tmp/e2/build/qt-everywhere-opensource-src-5.8.0-beta/qtbase/examples/gui/gui.pro -qtconf /tmp/e2/build/build/qtbase/bin/qt.conf -- -confirm-license -prefix /usr -hostprefix /opt/emlix/test -hostbindir /opt/emlix/test/bin -hostdatadir /opt/emlix/test -bindir /usr/bin -libdir /usr/lib -libexecdir /usr/libexec -headerdir /usr/include/qt5 -archdatadir /usr/lib/qt5 -datadir /usr/share/qt5 -plugindir /usr/lib/qt5/plugins -importdir /usr/lib/qt5/imports -translationdir /usr/share/qt5/translations -xplatform emlix/linux-i386-g++ -release -opensource -shared -pch -pkg-config -platform linux-g++ -plugin-sql-sqlite -v -no-rpath -nomake tools -sysroot /opt/emlix/test/sysroot -no-sse2 -examplesdir /usr/qt5/examples -make examples -skip svg -skip activeqt -skip location -skip wayland -skip 3d -skip graphicaleffects -skip quickcontrols -skip x11extras -skip macextras -skip winextras -skip androidextras -skip webengine -skip canvas3d -skip webview -skip quickcontrols2 -skip purchasing -skip charts -skip datavis3d -skip virtualkeyboard -skip gamepad -skip speech -skip networkauth -no-gui -no-widgets -alsa -no-cups -dbus-linked -no-directfb -fontconfig -system-freetype -glib -no-gstreamer -no-iconv -no-icu -system-libjpeg -system-libpng -openssl-linked -system-pcre -system-sqlite -tslib -libudev -no-xcb -no-xinput2 -no-xrender -system-zlib ) && make -f Makefile 
Project ERROR: Could not find feature opengl.