ollie@nixos ~/nixpkgs> nix-build -A haskellPackages.stmFirehose
these derivations will be built:
/nix/store/yxrql2ahz5132zxxmkmiwp2r13fz5sxd-haskell-stm-firehose-ghc7.6.3-0.1.2.drv
building path(s) `/nix/store/wn9yd7q82w7f34r9ljm309zkbakbfiwa-haskell-stm-firehose-ghc7.6.3-0.1.2'
building /nix/store/wn9yd7q82w7f34r9ljm309zkbakbfiwa-haskell-stm-firehose-ghc7.6.3-0.1.2
unpacking sources
unpacking source archive /nix/store/1bg6v1y3krz8y45gh97k4d93j7gzfqfs-stm-firehose-0.1.2.tar.gz
source root is stm-firehose-0.1.2
patching sources
configuring
[1 of 1] Compiling Main ( Setup.hs, Setup.o )
Linking Setup ...
configure flags: --enable-split-objs --disable-library-profiling --disable-shared --enable-library-vanilla --disable-executable-dynamic --enable-tests
Configuring stm-firehose-0.1.2...
Setup: At least the following dependencies are missing:
conduit ==1.0.*,
network-conduit ==1.0.*,
stm-conduit ==2.1.*,
wai ==2.0.*,
warp ==2.0.*
building