How install new package created? How contribute with it?

[Daniel Pimentel]

Hi guix,

I create derivation of package Rage with success.

Steps:
git clone git://git.savannah.gnu.org/guix.git
cd guix
./bootstrap
./configure --with-libgcrypt-prefix=$HOME/.guix-profile/ 
--localstatedir=/var
make
make check
guix download  
http://download.enlightenment.org/rel/apps/rage/rage-0.1.4.tar.gz
/gnu/store/9f75ba59cxfcw8val68xsxqsvj5bxva1-rage-0.1.4.tar.gz
10j3n8crk16jzqz2hn5djx6vms5f6x83qyiaphhqx94h9dgv2mgg

emacs gnu-system.am (added "gnu/packages/rage.scm")
emacs gnu/packages/rage.scm (edit it, a lot of lines)

./pre-inst-env guix build rage -K

Last lines:
configure: creating ./config.status
config.status: creating Makefile
config.status: creating rage.spec
config.status: creating pkgbuild/PKGBUILD
config.status: creating rage_config.h
config.status: executing depfiles commands
configure: WARNING: unrecognized options: --enable-fast-install
------------------------------------------------------------------------
rage 0.1.4
------------------------------------------------------------------------

/gnu/store/hhrqa802r470f0cdah7hsjnv0wknlagf-rage-0.1.4

So, how I install this package? How I contribute to it (new package Rage 
to Guix packages)?

Thanks for all,

--
Daniel Pimentel (d4n1 3:)