On OSX 10.6.6 I'm trying to install Yesod through Cabal but it fails because its unable to build cryptocipher.

Has anyone seen this or know an answer?

Thanks,

Tristan

cabal-install version 0.8.2

using version 1.8.0.6 of the Cabal library

Resolving dependencies...

Configuring cryptocipher-0.2.7...

Preprocessing library cryptocipher-0.2.7...

Preprocessing executables for cryptocipher-0.2.7...

Building cryptocipher-0.2.7...

[1 of 8] Compiling Number.Serialize ( Number/Serialize.hs, dist/build/Number/Serialize.o )

[2 of 8] Compiling Number.Generate ( Number/Generate.hs, dist/build/Number/Generate.o )

[3 of 8] Compiling Number.ModArithmetic ( Number/ModArithmetic.hs, dist/build/Number/ModArithmetic.o )

[4 of 8] Compiling Crypto.Cipher.DSA ( Crypto/Cipher/DSA.hs, dist/build/Crypto/Cipher/DSA.o )

[5 of 8] Compiling Crypto.Cipher.RSA ( Crypto/Cipher/RSA.hs, dist/build/Crypto/Cipher/RSA.o )

[6 of 8] Compiling Crypto.Cipher.Camellia ( Crypto/Cipher/Camellia.hs, dist/build/Crypto/Cipher/Camellia.o )

[7 of 8] Compiling Crypto.Cipher.AES ( Crypto/Cipher/AES.hs, dist/build/Crypto/Cipher/AES.o )

Crypto/Cipher/AES.hs:228:30: Not in scope: `V.concat'

Crypto/Cipher/AES.hs:229:30: Not in scope: `V.concat'

Crypto/Cipher/AES.hs:230:30: Not in scope: `V.concat'

Configuring language-javascript-0.4.3...

cabal: happy is required but it could not be found.

cabal: Error: some packages failed to install:

authenticate-0.8.2.2 depends on cryptocipher-0.2.7 which failed to install.

cryptocipher-0.2.7 failed during the building phase. The exception was:

ExitFailure 1

hjsmin-0.0.13 depends on language-javascript-0.4.3 which failed to install.

http-enumerator-0.3.1 depends on cryptocipher-0.2.7 which failed to install.

language-javascript-0.4.3 failed during the configure step. The exception was:

ExitFailure 1

tls-0.3.3 depends on cryptocipher-0.2.7 which failed to install.

yesod-0.7.3 depends on language-javascript-0.4.3 which failed to install.

yesod-auth-0.3.2 depends on cryptocipher-0.2.7 which failed to install.