emacs.pkgs.sqlite3: build .so file

          };

        });

        sqlite3 = super.sqlite3.overrideAttrs (old: {

          buildInputs = (old.buildInputs or [ ]) ++ [ pkgs.sqlite ];

          postBuild = ''

            pushd working/sqlite3

            make

            popd

          '';

          postInstall = (old.postInstall or "") + "\n" + ''

            pushd source

            outd=$out/share/emacs/site-lisp/elpa/sqlite3-*

            install -m444 -t $outd sqlite3-api.so

            rm $outd/*.c $outd/*.h

            popd

          '';

          meta = old.meta // {

            maintainers = [ lib.maintainers.DamienCassou ];

          };

        });

        libgit = super.libgit.overrideAttrs(attrs: {

          nativeBuildInputs = (attrs.nativeBuildInputs or []) ++ [ pkgs.cmake ];

          buildInputs = attrs.buildInputs ++ [ pkgs.libgit2 ];