tce-load -i compiletc meson js115-dev gobject-introspection-dev gtk3-dev gtk3-gir gtk4-dev gtk4-gir

wget https://download.gnome.org/sources/gjs/1.78/gjs-1.78.3.tar.xz

cd gjs-1.78.3

mkdir build-gjs
cd build-gjs

CC="gcc -flto -mtune=generic -Os -pipe" CXX="g++ -flto -mtune=generic -Os" meson --prefix=/usr/local --localstatedir=/var --libexecdir=/usr/local/lib --buildtype=plain -Dinstalled_tests=false --wrap-mode=nofallback

[-fno-exceptions fails]

ninja [1m 3.48s]
sudo ninja install

gjs 1.78.3

  Directories
    prefix                : /usr/local
    bindir                : /usr/local/bin
    libdir                : /usr/local/lib
    datadir               : /usr/local/share

  Dependencies
    libffi                : 3.3 (in /usr/local)
    GLib                  : 2.78.1 (in /usr/local)
    GObject introspection : 1.78.1 (in /usr/local)
    SpiderMonkey          : 115.7.0 (in /usr/local, release build)
    Readline              : (library)

  Build options
    Build type            : plain
    Installed tests       : NO
    -Bsymbolic-functions  : YES
    Skip DBus tests       : NO
    Skip GTK tests        : NO
    Extra debug logs      : NO
    Precompiled headers   : YES

  Optional features
    Cairo module          : YES
    Use readline for input: YES
    Profiler (Linux only) : NO
    Dtrace debugging      : NO
    Systemtap debugging   : NO

  User defined options
    buildtype             : plain
    libexecdir            : /usr/local/lib
    localstatedir         : /var
    prefix                : /usr/local
    wrap_mode             : nofallback
    installed_tests       : false