$ tce-load -wi compiletc cmake libgcrypt-dev qt-5.x-dev zlib_base-dev

-> per TC wiki, for maximum compatibility:
$ export CFLAGS="-mtune=generic -Os -pipe"
$ export CXXFLAGS="-mtune=generic -Os -pipe"
$ export LDFLAGS="-Wl,-O1"

$ cmake -DCMAKE_INSTALL_PREFIX=/usr/local -DCMAKE_BUILD_TYPE=Release -DWITH_GUI_TESTS=ON -DWITH_CXX11=ON
$ make
$ mkdir /opt/dest; sudo make DESTDIR=/opt/dest install