tce-load -i glib2-dev gobject-introspection-dev intltool

cd gsettings-desktop-schemas-3.16.1

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 --enable-introspection=yes --localstatedir=/var

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

make
make install

/tmp/pkg/usr/local/share/glib-2.0/schemas/org.gnome.desktop.interface.gschema.xml
<default>'Adwaita'</default> <default>'gnome'</default> line 62 only

<key type="b" name="clock-show-date">
      <default>true</default>

              gsettings-desktop-schemas 3.16.1
              ================================

        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:               .
        Maintainer mode:                    yes