tce-load -i compiletc meson babl-dev json-glib-dev pango-dev gdk-pixbuf-dev gexiv2-dev jasper-dev libraw-dev librsvg-dev libv4l2-dev sdl2-dev vala-dev libwebp-dev poppler-dev 

wget https://download.gimp.org/pub/gegl/0.4/gegl-0.4.58.tar.xz

cd gegl-0.4.58

sudo cp /tmp/tcloop/gcc_libs-dev/usr/local/lib/libgomp.spec /usr/lib

mkdir build
cd build

CC="gcc -flto -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" CXX="g++ -flto -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" meson --prefix=/usr/local --localstatedir=/var --buildtype=plain -Ddocs=false -Dlibav=disabled

[-fno-exceptions -fno-rtti fails]

ninja [4m 41.70s]
sudo ninja install

gegl 0.4.58

  Directories
    prefix             : /usr/local
    libdir             : lib

  GEGL docs
    GTK-docs reference : False
    GI-docgen reference: False
    Docs (GEGL website): False

  Optional features
    Build workshop     : False
    Introspection      : True
    Vala support       : True

  Optional build utilities
    asciidoc           : False
    dot                : False
    pygobject          : True
    source-highlight   : False
    w3m                : False

  Optional dependencies
    avlibs             : False
    Cairo              : True
    GDKPixbuf          : True
    gexiv2             : True
    Jasper             : True
    lcms               : True
    libnsgif           : True
    libraw             : True
    Luajit             : False
    maxflow            : False
    mrg                : False
    OpenEXR            : False
    openMP             : True
    Pango              : True
    pangocairo         : True
    poly2tri-c         : True
    poppler            : True
    rsvg               : True
    SDL1               : False
    SDL2               : True
    spiro              : False
    TIFF               : True
    umfpack            : False
    V4L                : True
    V4L2               : True
    webp               : True

  Subprojects
    libnsgif           : YES 2 warnings
    poly2tri-c         : YES 1 warnings

  User defined options
    buildtype          : plain
    localstatedir      : /var
    prefix             : /usr/local
    docs               : false
    libav              : disabled