message: SYS_TYPE might not be defined on other platform
diff: @@ -82,7 +82,8 @@ class Hdf5(Package):
  # sanity check in configure, so this doesn't merit a variant.
  extra_args.append("--enable-unsupported")
  - if os.environ['SYS_TYPE'].find("blueos_3") == 0:
  +# if os.environ['SYS_TYPE'].find("blueos_3") == 0:
  + if "blueos_3" in os.getenv('SYS_TYPE', ""):
  extra_args.append('ac_cv_build=powerpc64le-unknown-linux-gnu')
  if '+debug' in spec:
  