tce-load -i compiletc meson libgit2-dev gobject-introspection-dev vala-dev py3.6gobject-dev

https://github.com/GNOME/libgit2-glib/archive/v0.28.0.1.tar.gz

cd libgit2-glib-0.28.0.1

CFLAGS="-flto -fuse-linker-plugin -mtune=generic -Os -pipe" CXXFLAGS="-flto -fuse-linker-plugin -mtune=generic -Os -pipe -fno-exceptions -fno-rtti"  meson --prefix /usr/local --buildtype=plain -Denable-debug=no build

ninja -C build [0m 11.46s]
sudo ninja -C build install

make
make install