Instale as bibliotecas de desenvolvimento usando
sudo apt-get install libqt5webkit5-dev
para obter
Qt5WebKitWidgetsConfig.cmake
qt5webkitwidgets-config.cmake
e inicie cmake -DCMAKE_INSTALL_PREFIX=/usr
novamente
Exemplo de saída
~/tmp/KanColleTool.git] master ± cmake -DCMAKE_INSTALL_PREFIX=/usr
-- The C compiler identification is GNU 4.9.2
-- The CXX compiler identification is GNU 4.9.2
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Configuring done
-- Generating done
-- Build files have been written to: /home/aboettger/tmp/KanColleTool.git