Cannot suppress "Warning: {-# SOURCE #-} unnecessary in import of ‘A’"
Consider the following three files:
-- A.hs
module A where
-- A.hs-boot
module A where
-- B.hs
module B where
import {-# SOURCE #-} A
When compiling these three files GHC emits a warning and rightly so:
>ghc B.hs
B.hs:3:23: Warning: {-# SOURCE #-} unnecessary in import of ‘A’
[1 of 3] Compiling A[boot] ( A.hs-boot, A.o-boot )
[2 of 3] Compiling A ( A.hs, A.o )
[3 of 3] Compiling B ( B.hs, B.o )
When on the other hand compiling with -w
I expect the warning to go away but it doesn't.
>ghc -w B.hs
B.hs:3:23: Warning: {-# SOURCE #-} unnecessary in import of ‘A’
[1 of 3] Compiling A[boot] ( A.hs-boot, A.o-boot )
[2 of 3] Compiling A ( A.hs, A.o )
[3 of 3] Compiling B ( B.hs, B.o )
Trac metadata
Trac field | Value |
---|---|
Version | 7.10.1 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | Linux |
Architecture | x86_64 (amd64) |