Simple configure-make-make_install with Guix

[Jone]

Hello! I'm wondering, how could I operate with unpacked sources?
So far I see only this:

  guix build -f /home/jone/Desktop/template.scm
guix build: error: #<unspecified>: not something we can build

Files:
1. template.scm
(use-modules
 (ice-9 match)
 (srfi srfi-1)
 (guix gexp)
 (guix licenses)
 (guix build-system gnu)
 (guix packages)
 (gnu packages)
 (gnu packages glib)
 (gnu packages gtk)
 (gnu packages audio))
(define-public gvolwheel
  (package
   (name "gvolwheel")
   (version "-1.0")
   (source (local-file "/home/jone/Desktop/gvolwheel-1.0" #:recursive? #t))
   (build-system gnu-build-system)
   (native-inputs
        `(("pkg-config" ,pkg-config)))
   (inputs
        `(("alsa-lib" ,alsa-lib)
          ("gtk+" ,gtk+)))
   (synopsis "test")
   (description "test")
   (home-page "https://sourceforge.net/projects/gvolwheel";)
   (license gpl2)))

2. ls -1 .
aclocal.m4
AUTHORS
ChangeLog
config.guess
config.h.in
config.sub
configure
configure.ac
COPYING
depcomp
INSTALL
install-sh
ltmain.sh
Makefile.am
Makefile.in
missing
mkinstalldirs
NEWS
pixmaps
po
README
src

This is just an example (a little harder than "GNU Hello"). I would like
to learn to build such things.