Hello GHC bug fixers,
I just sent a program which ghc --make couldn't compile but
individual ghc -c commands could.
Now I have just tried to work around this, using Template Haskell
to use a "data" rather than "newtype" declaration for ghc6.2
Unfortunately the new code has the opposite problem! It breaks
ghc -c, but ghc --make works. This is also for both ghc6.2
and ghc6.2.20040915
with -c it doesn't work:
# ghc -c -fglasgow-exts ViewType.hs
# ghc -c -fglasgow-exts VersionGraphClient.hs
tcLookup: `VersionGraphClient.VersionGraphClient' is not in scope
In the data type declaration for `View'
with --make it does work:
# ghc --make -fglasgow-exts VersionGraphClient.hs
Chasing modules from: VersionGraphClient.hs
Compiling ViewType ( ./ViewType.hs, ./ViewType.o )
Compiling VersionGraphClient ( VersionGraphClient.hs, VersionGr
Loading package base ... linking ... done.
Loading package haskell98 ... linking ... done.
Loading package haskell-src ... linking ... done.
module VersionGraphClient where
data VersionGraphClient
module ViewType(
View(..),
) where
import {-# SOURCE #-} VersionGraphClient
data View = View {
graphClient1 :: VersionGraphClient
}
module VersionGraphClient(
VersionGraphClient,
) where
import ViewType
data Foo = Foo View
$(if False
then
[d|
newtype VersionGraphClient = VersionGraphClient [Foo]
|]
else
[d|
data VersionGraphClient = VersionGraphClient [Foo]
|]
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