Como instalo o Qjackctl a partir do código-fonte?

Question

Por favor, indique o código exato para:

./configure [--prefix=prefix]

Eu não sei como colocar o prefixo.

A página do forumforge do Qjackctl afirma:

The installation procedure follows the standard for source distributions. In the extracted source directory, just do:

./configure [--prefix=prefix]
make

and optionally as root:

[sudo] make install

This procedure will end installing the following files:

prefix/bin/qjackctl
prefix/share/applications/qjackctl.desktop
prefix/share/icons/hicolor/32x32/apps/qjackctl.png
prefix/share/qjackctl/translations/qjackctl_*.qm
prefix/share/man/man1/qjackctl.1

Just launch prefix/bin/qjackctl and you're off (hopefully). Note that the default installation path prefix is /usr/local.

Eu tentei como abaixo, mas isso falha ...

kirby@kirby-Aspire-ES1-433:~/Desktop$ ls
qjackctl-0.5.0  qjackctl-0.5.0.tar.gz
kirby@kirby-Aspire-ES1-433:~/Desktop$ cd qjackctl-0.5.0
kirby@kirby-Aspire-ES1-433:~/Desktop/qjackctl-0.5.0$ ./configure --prefix=/bin/qjackctl
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking how to run the C preprocessor... gcc -E
checking for g++... g++
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking how to run the C++ preprocessor... g++ -E
checking for pkg-config... /usr/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for g++ major version... 7
checking for qmake-qt5... no
checking for qmake... /usr/bin/qmake
checking for Qt major version... qmake: could not exec '/usr/lib/x86_64-linux-gnu/qt4/bin/qmake': No such file or directory
0
configure: error: qmake-qt5 not found in current PATH. Maybe QT development environment isn't available. (qt5-devel)
kirby@kirby-Aspire-ES1-433:~/Desktop/qjackctl-0.5.0$ 

Como corrigir isso?