-package and -idir in OPTIONS_GHC are ignored, but manual says that they're dynamic

If I put a -package flag in OPTIONS_GHC, GHC ignores it. For example:

test.hs:

{-# OPTIONS_GHC -package base #-}
main = putStrLn "hello"

$ ghc --make -hide-all-packages -o test test.hs
[1 of 1] Compiling Main             ( test.hs, test.o )

test.hs:1:0:
    Failed to load interface for `Prelude':
      it is a member of package base, which is hidden

It also ignores -idir:

test.hs

{-# OPTIONS_GHC -itestdir #-}
import Foo
main = putStrLn "hello"

testdir/Foo.hs

module Foo where

$ ghc --make test.hs

test.hs:2:7:
    Could not find module `Foo':
      Use -v to see a list of the files searched for.

The manual says that both -package and -i are dynamic, and that dynamic flags can be set in OPTIONS_GHC.

Trac metadata

Trac field	Value
Version	6.6
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system	Unknown
Architecture	Unknown