Просто не знаю, що і робити, окрім як встановити JDownloader. Якщо допоможе, реакція моєї системи на cmake:
[yurchor@localhost build]$ cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr ..
-- The C compiler identification is GNU
-- The CXX compiler identification is GNU
-- Check for working C compiler: /usr/bin/gcc
-- Check for working C compiler: /usr/bin/gcc -- 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
-- Looking for Q_WS_X11
-- Looking for Q_WS_X11 - found
-- Looking for Q_WS_WIN
-- Looking for Q_WS_WIN - not found.
-- Looking for Q_WS_QWS
-- Looking for Q_WS_QWS - not found.
-- Looking for Q_WS_MAC
-- Looking for Q_WS_MAC - not found.
-- Found Qt-Version 4.5.0
-- Found OpenSSL: /usr/lib/libssl.so
-- Looking for _POSIX_TIMERS
-- Looking for _POSIX_TIMERS - found
-- Looking for include files HAVE_SYS_EPOLL_H
-- Looking for include files HAVE_SYS_EPOLL_H - found
-- Looking for kqueue
-- Looking for kqueue - not found
-- Configuring done
-- Generating done
-- Build files have been written to: /home/yurchor/Install/Internet/Fatrat/git/fatrat/build