On Apr 5, 2005 9:59 PM, Dominic Steinitz
When I try to build using
./Setup build
I get the following error:
Compiling Codec.Encryption.DESAux ( ./Codec/Encryption/DESAux.hs, dist/build/./Codec/Encryption/DESAux.o )
./Codec/Encryption/DESAux.hs:19:0: Illegal instance declaration for `Num [Bool]' (The instance type must be of form (T a b c) where T is not a synonym, and a,b,c are distinct type variables) In the instance declaration for `Num [Bool]'
./Codec/Encryption/DESAux.hs:21:0: Illegal instance declaration for `Bits [Bool]' (The instance type must be of form (T a b c) where T is not a synonym, and a,b,c are distinct type variables) In the instance declaration for `Bits [Bool]'
So I added
Ghc-options: -fglasgow-exts
to the cabal file. Now this module compiles but I still get the same error on a different module and I know -fglasgow-exts allows this to compile when I do it by hand.
./Codec/ASN1/TLV.hs:140:0: Illegal instance declaration for `Binary (State ([Octet], Offset))' (The instance type must be of form (T a b c) where T is not a synonym, and a,b,c are distinct type variables) In the instance declaration for `Binary (State ([Octet], Offset))'
In fact, this seems to be the second time this module has been compiled and the first it completed successfully.
Compiling Codec.ASN1.TLV ( ./Codec/ASN1/TLV.hs, dist/build/./Codec/ASN1/TLV.o ) Compiling Codec.ASN1.X509 ( ./Codec/ASN1/X509.hs, dist/build/./Codec/ASN1/X509.o )
Why is cabal recompiling sources and why am I getting errors on the second compilation?
Pass '-v' to the Setup script to see how Cabal calls GHC. -- Friendly, Lemmih