For higher kinds, instance declarations need quantification in the context
$ rm -f DerivingError.o DerivingError.hi; ghc --make DerivingError.hs
[1 of 1] Compiling DerivingError ( DerivingError.hs, DerivingError.o )
/var/folders/C0/C0SledGV2RaxbU+8ZLDnVU+++TI/-Tmp-//ghc27223_0/ghc27223_0.s:6080:0:
FATAL:Symbol _XxG_srt already defined.
Trac metadata
Trac field |
Value |
Version |
6.8.3 |
Type |
Bug |
TypeOfFailure |
OtherFailure |
Priority |
normal |
Resolution |
Unresolved |
Component |
Compiler |
Test case |
|
Differential revisions |
|
BlockedBy |
|
Related |
|
Blocking |
|
CC |
|
Operating system |
MacOS X |
Architecture |
|
Edited by Simon Peyton Jones