SafeFlags28.hs:1:17: error:
    Unknown flag in  {-# OPTIONS_GHC #-} pragma: -trust

SafeFlags28.hs:1:24: error:
    Unknown flag in  {-# OPTIONS_GHC #-} pragma: base,

SafeFlags28.hs:1:30: error:
    Unknown flag in  {-# OPTIONS_GHC #-} pragma: -trust

SafeFlags28.hs:1:37: error:
    Unknown flag in  {-# OPTIONS_GHC #-} pragma: bytestring