tce-load -i compiletc itstool intltool gobject-introspection-dev accountsservice-dev libcanberra-dev linux-pam-dev iso-codes

cd gdm-3.28.2

patch -Np1 -i ../gdm-3.28.2_gdm-elogind_gdm-common.c.patch
patch -Np1 -i ../gdm-3.28.2_gdm-elogind_gdm-log.c.patch
patch -Np1 -i ../gdm-3.28.2_gdm-elogind_gdm-server.c.patch
patch -Np1 -i ../gdm-3.28.2_gdm-elogind_gdm-session-worker-job.c.patch
patch -Np1 -i ../gdm-3.28.2_gdm-elogind_gdm-session-worker.c.patch
patch -Np1 -i ../gdm-3.28.2_gdm-elogind_gdm-user-switching.c.patch

sudo mkdir /usr/local/include/security
sudo ln -s /tmp/tcloop/linux-pam-dev/usr/local/include/* /usr/local/include/security

cp libatk-1.0.la /usr/local/lib

Edit configure

   X_PATH="/usr/local/bin"
   X_SERVER_PATH="/usr/local/bin"
   X_SERVER="/usr/local/bin/X"

find . -name configure -type f -exec sed -i 's/libsystemd/libelogind/g' {} \;

SYSTEMD_CFLAGS="-I/usr/local/include/elogind" SYSTEMD_LIB="-L/usr/local/lib -lelogind" 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 --disable-static --localstatedir=/var
 --libexecdir=/usr/local/lib/gdm --without-plymouth --with-user=tc --with-group=staff --with-gnome-settings-daemon-directory=/usr/local/lib/gnome-settings-daemon-3.0 --with-check-accelerated-directory=/usr/local/lib/gnome-session --with-at-spi-registryd-directory=/usr/local/lib/at-spi2-core --disable-systemd-journal --enable-gdm-xsession

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

make
sudo make install

sudo install -v -m644 data/gdm.service /lib/systemd/system/gdm.service

                    GDM 3.28.2
                    ============

	prefix:                   /usr/local
	exec_prefix:              ${prefix}
        libdir:                   ${exec_prefix}/lib
        bindir:                   ${exec_prefix}/bin
        sbindir:                  ${exec_prefix}/sbin
        sysconfdir:               ${prefix}/etc
        sysconfsubdir:            gdm
        gdmconfdir:               ${sysconfdir}/${sysconfsubdir}
        dmconfdir:                ${prefix}/etc/dm
        localstatedir:            /var
        datadir:                  ${datarootdir}
	gnome-settings-daemon location: /usr/local/lib/gnome-settings-daemon-3.0
	gnome-session-check-accel location: /usr/local/lib/gnome-session
	source code location:	  .
	compiler:		  gcc -flto -fuse-linker-plugin -mtune=generic -Os -pipe
	cflags:		          -g -O2
        Maintainer mode:          yes

        user:                     tc
        group:                    staff

        dbus-1 system.d dir:      ${prefix}/etc/dbus-1/system.d
        PAM prefix:               ${sysconfdir}
        PAM module dir:           ${libdir}/security
        PAM config:               none
        X server:                 /usr/local/bin/X

        TCP Wrappers support:     no
        Xinerama support:         yes
        XDMCP support:            yes
        SELinux support:          no
        systemd unit dir:         
        plymouth support:         no
        wayland support:          yes
        Build with RBAC:          no
        Initial VT:               1
        Enable documentation:     yes
        Install GDM's Xsession:   no