tce-load -i compiletc gtk3-dev gtk3-gir gobject-introspection-dev startup-notification-dev intltool

cd libwnck-3.24.1

CC="gcc -flto -fuse-linker-plugin -mtune=generic -Os -pipe" CXX="g++ -flto -fuse-linker-plugin -mtune=generic -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --localstatedir=/var --disable-static

find . -name Makefile -type f -exec sed -i 's/-g -O2//g' {} \;

make
sudo make install

              libwnck 3.24.1
              ==============

        prefix:                       /usr/local
        exec_prefix:                  ${prefix}
        libdir:                       ${exec_prefix}/lib
        bindir:                       ${exec_prefix}/bin
        sbindir:                      ${exec_prefix}/sbin
        sysconfdir:                   ${prefix}/etc
        localstatedir:                /var
        datadir:                      ${datarootdir}
        source code location:         .
        compiler:                     gcc -flto -fuse-linker-plugin -mtune=generic -Os -pipe
        cflags:                       -g -O2
        Maintainer mode:              no
        Use *_DISABLE_DEPRECATED:     no

        Startup notification support: yes
        XRes support:                 yes
        Build introspection support:  yes
        Build gtk-doc documentation:  no
        Install wnck-based tools:     yes