tce-load -i compiletc meson babl-dev bash json-glib-dev pango-dev gdk-pixbuf2-dev gexiv2-dev jasper2-dev libraw-dev librsvg-dev libv4l2-dev luajit-dev openexr-dev SDL2-dev vala-dev libwebp1-dev poppler07-dev 

wget https://download.gimp.org/pub/gegl/0.4/gegl-0.4.26.tar.xz

cd gegl-0.4.26

mkdir build
cd build

CC="gcc -flto -fuse-linker-plugin -march=i486 -mtune=i686 -Os -pipe" CXX="g++ -flto -fuse-linker-plugin -march=i486 -mtune=i686 -Os -pipe" meson --prefix=/usr/local --localstatedir=/var --buildtype=plain -Ddocs=false

[-fno-exceptions -fno-rtti fails]

ninja [1m 6.41s]
sudo ninja install

Optional features:
  GEGL docs:       false
  Build workshop:  false
  Vala support:    true

Optional dependencies:
  asciidoc:        false
  enscript:        false
  mrg:             false
  Ruby:            false
  Luajit:          true
  Cairo:           true
  Pango:           true
  pangocairo:      true
  poppler:         true
  GDKPixbuf:       true
  JPEG:            true
  PNG:             true
  OpenEXR:         true
  rsvg:            true
  SDL:             false
  libraw:          true
  Jasper:          true
  av libs:         false
  V4L:             true
  V4L2:            true
  spiro:           false
  EXIV:            true
  gexiv2:          true
  umfpack:         false
  TIFF             true
  webp:            true
  poly2tri-c:      true (internal)