(use-modules (gnu packages bison)
             (gnu packages flex)
             (gnu packages commencement)
             (gnu packages base)
             (gnu packages python)
             (gnu packages guile)
	     (gnu packages pkg-config))

(packages->manifest
 (list
  bison
  flex
  gcc-toolchain
  gnu-make
  guile-next
  pkg-config
  python
  ))