message: redirect spack output to a file
diff: @@ -92,7 +92,13 @@ def uberenv_install_tpls(prefix,spec,mirror = None):
  cmd = "python ../uberenv.py --prefix %s --spec %s " % (prefix,spec)
  if not mirror is None:
  cmd += "--mirror %s" % mirror
  - return sexe(cmd,echo=True)
  +
  + spack_tpl_build_log = pjoin(prefix,"output.log.spack.tpl.build.%s.txt" % spec)
  + print "[starting tpl install of spec %s]" % spec
  + print "[log file: %s]" % spack_tpl_build_log
  + return sexe(cmd,
  + echo=True,
  + output_file = spack_tpl_build_log)
  def patch_host_configs(prefix):
  """
  