Instale o plugin .tar.gz widowck

Question

-Eu baixei o arquivo xfce4-windowck-plugin-0.4.4

-Eu extraí o arquivo

-Eu abro o arquivo README dentro Eu encontrei escrito:

Generate Run ./autogen.sh --prefix=usr (you need to have xfce4-dev-tools installed)

Installation

1) Install dependencies: - For debian/ubuntu see debian/control folder and follow debian packaging guidlines - For Arch linux see Arch/PKGBUILD

2) Generate common makefiles:

# ./autogen.sh --prefix=usr

3) compile and install the plugin

# make
# sudo make install

The file 'INSTALL' contains generic installation instructions. For more detailed information, visit the plugin website at http://goodies.xfce.org/projects/panel-plugins/xfce4-windowck-plugin

-este é o resultado do primeiro comando: ./autogen.sh --prefix=usr

xdt-autogen: It is recommended to use IT_PROG_INTLTOOL([0.35.0])
             in your configure.ac file and remove AC_PROG_INTLTOOL

             See http://bugzilla.xfce.org/show_bug.cgi?id=8930 for
             more information.

xdt-autogen: You must have "glib2" installed. You can get if from
             ftp://ftp.gtk.org/pub/gtk/.

-Eu já instalei as ferramentas dev do xfce4; o terminal me perguntou antes do glib 2.

Me ajude eu me lembro de já ter instalado este pacote não me lembro como. Sou iniciante tenho formatado o pc e agora não consigo reinstalar este pacote