building /nix/store/xdkpa2gvj6mrs3lb4z9aa2vhdxp2lkxx-haskell-alex-meta-ghc6.12.3-0.3.0.3
unpacking sources
unpacking source archive /nix/store/h4j9pphd1awzrg1mqhs1mzhznc4nw1df-alex-meta-0.3.0.3.tar.gz
source root is alex-meta-0.3.0.3
patching sources
configuring
[1 of 1] Compiling Main             ( Setup.hs, Setup.o )
Linking Setup ...
Configuring alex-meta-0.3.0.3...
Setup: At least the following dependencies are missing:
template-haskell >=2.5 && <2.8
builder for `/nix/store/8yzjqynp6nblpy129czq0iap783jghbh-haskell-alex-meta-ghc6.12.3-0.3.0.3.drv' failed with exit code 1
error: build of `/nix/store/8yzjqynp6nblpy129czq0iap783jghbh-haskell-alex-meta-ghc6.12.3-0.3.0.3.drv' failed