tce-load -i compiletc freetype-dev graphite2-dev icu-dev gobject-introspection-dev

https://github.com/harfbuzz/harfbuzz/releases/download/2.6.8/harfbuzz-2.6.8.tar.xz

cd harfbuzz-2.6.8

CC="gcc -march=armv8-a+crc -Os -pipe" CXX="g++ -march=armv8-a+crc -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --disable-static --localstatedir=/var --with-gobject --with-graphite2

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

make [6m 32.24s]
make install

Build configuration:

Unicode callbacks (you want at least one):
        Builtin                 true
        Glib:                   true
        ICU:                    true

Font callbacks (the more the merrier):
        FreeType:               true

Tools used for command-line utilities:
        Cairo:                  false
        Fontconfig:             false

Additional shapers:
        Graphite2:              true

Platform shapers (not normally needed):
        CoreText:               false
        DirectWrite:            false
        GDI:                    false
        Uniscribe:              false

Other features:
        Documentation:          no
        GObject bindings:       true
        Introspection:          true