tce-load -i compiletc cmake ninja gst-plugins-bad-dev gtk3-dev icu65-dev libsecret-dev libsoup-dev ruby-dev gudev-lib-dev enchant-dev geoclue-dev gobject-introspection-dev hicolor-icon-theme gperf perl5 libxslt-dev libnotify-dev gettext harfbuzz-icu-dev gtk3-gir libsoup-gir openjpeg-dev

https://webkitgtk.org/releases/webkitgtk-2.28.2.tar.xz

cd webkitgtk-2.28.2

mkdir build
cd build

cmake -LAH -DCMAKE_C_FLAGS_RELEASE="-mtune=generic -Os -pipe" -DCMAKE_CXX_FLAGS_RELEASE="-mtune=generic -Os -pipe -DNDEBUG" -DCMAKE_INSTALL_PREFIX=/usr/local -DCMAKE_INSTALL_LIBDIR=/usr/local/lib -DCMAKE_INSTALL_LIBEXECDIR=/usr/local/lib -DCMAKE_INSTALL_LOCALSTATEDIR=/var -DCMAKE_BUILD_TYPE=Release -DCMAKE_SKIP_RPATH=ON -DUSE_LD_GOLD=OFF -DENABLE_MINIBROWSER=ON -DUSE_LIBHYPHEN=OFF -DPORT=GTK -DUSE_WOFF2=OFF -Wno-dev -DUSE_WPE_RENDERER=OFF -DENABLE_BUBBLEWRAP_SANDBOX=OFF -DENABLE_GLES2=ON -DCMAKE_VERBOSE_MAKEFILE=TRUE -G Ninja ../

-DENABLE_ACCELERATED_2D_CANVAS [No package 'cairo-gl' found]
-Wno-expansion-to-defined

[lto fails]

ninja -j1 [2h 40m 20s]
sudo ninja install

-- Enabled features:
--  ENABLE_ACCELERATED_2D_CANVAS .................. OFF
--  ENABLE_BUBBLEWRAP_SANDBOX                       OFF
--  ENABLE_DRAG_SUPPORT ........................... ON
--  ENABLE_GLES2                                    ON
--  ENABLE_GTKDOC ................................. OFF
--  ENABLE_INTROSPECTION                            ON
--  ENABLE_MEDIA_SOURCE ........................... ON
--  ENABLE_MINIBROWSER                              ON
--  ENABLE_OPENGL ................................. ON
--  ENABLE_QUARTZ_TARGET                            OFF
--  ENABLE_SHAREABLE_RESOURCE ..................... ON
--  ENABLE_SPELLCHECK                               ON
--  ENABLE_TOUCH_EVENTS ........................... ON
--  ENABLE_VIDEO                                    ON
--  ENABLE_WAYLAND_TARGET ......................... ON
--  ENABLE_WEBDRIVER                                ON
--  ENABLE_WEB_AUDIO .............................. ON
--  ENABLE_WEB_CRYPTO                               ON
--  ENABLE_X11_TARGET ............................. ON
--  USE_LIBHYPHEN                                   OFF
--  USE_LIBNOTIFY ................................. ON
--  USE_LIBSECRET                                   ON
--  USE_OPENJPEG .................................. ON
--  USE_WOFF2                                       OFF
--  USE_WPE_RENDERER .............................. OFF
-- Configuring done