$ cabal install haste-compiler
Resolving dependencies...
In order, the following would be installed:
HTTP-4000.2.23 (latest: 4000.3.7) (via: haste-compiler-0.5.5.1 shellmate-0.2.3) (reinstall) (changes: network-2.6.2.1 -> 2.6.3.2, network-uri-2.6.0.3 -> 2.6.1.0, parsec-3.1.9 -> 3.1.11)
MonadRandom-0.5.1 (via: either-4.4.1.1) (new package)
SHA-1.6.4.2 (via: websockets-0.11.1.0) (new package)
base-orphans-0.6 (via: semigroupoids-5.2.1 profunctors-5.2.1 bifunctors-5.4.2 distributive-0.5.3) (new package)
blaze-builder-0.4.0.2 (via: haste-compiler-0.5.5.1 websockets-0.11.1.0 streaming-commons-0.1.18) (new package)
bzlib-0.5.0.5 (via: haste-compiler-0.5.5.1) (new package)
data-binary-ieee754-0.4.4 (via: haste-compiler-0.5.5.1) (new package)
entropy-0.3.8 (via: websockets-0.11.1.0) (new package)
exceptions-0.8.3 (via: either-4.4.1.1 free-4.12.4 temporary-1.2.1.1) (new package)
ghc-simple-0.3 (latest: 0.4) (via: haste-compiler-0.5.5.1) (new package)
integer-logarithms-1.0.2 (via: scientific-0.3.5.1) (new package)
mmorph-1.1.0 (via: either-4.4.1.1) (new package)
monads-tf-0.1.0.3 (via: haste-compiler-0.5.5.1) (new package)
prelude-extras-0.4.0.3 (via: free-4.12.4) (new package)
scientific-0.3.5.1 (via: attoparsec-0.13.2.0) (new version)
streaming-commons-0.1.18 (via: websockets-0.11.1.0) (new package)
system-filepath-0.4.13.4 (via: system-fileio-0.3.16.3) (new package)
system-fileio-0.3.16.3 (via: haste-compiler-0.5.5.1) (new package)
tagsoup-0.13.10 (latest: 0.14.1) (via: shellmate-0.2.3) (new package)
temporary-1.2.1.1 (via: shellmate-0.2.3) (new package)
time-locale-compat-0.1.1.3 -old-locale (via: feed-0.3.12.0) (new package)
transformers-base-0.4.4 (via: either-4.4.1.1 monad-control-1.0.2.1) (new package)
monad-control-1.0.2.1 (via: either-4.4.1.1) (new package)
unordered-containers-0.2.8.0 (via: semigroupoids-5.2.1 semigroups-0.18.3) (new version)
semigroups-0.18.3 (via: either-4.4.1.1 free-4.12.4 semigroupoids-5.2.1 bifunctors-5.4.2 comonad-5.0.2 contravariant-1.4 distributive-0.5.3 case-insensitive-1.2.0.10 attoparsec-0.13.2.0) (reinstall) (changes: hashable-1.2.3.3 -> 1.2.6.1, text-1.2.2.0 -> 1.2.2.2, unordered-containers-0.2.5.1 -> 0.2.8.0)
attoparsec-0.13.2.0 (via: websockets-0.11.1.0) (new version)
case-insensitive-1.2.0.10 (via: websockets-0.11.1.0) (new version)
distributive-0.5.3 (via: free-4.12.4 semigroupoids-5.2.1 profunctors-5.2.1 comonad-5.0.2) (new package)
utf8-string-1.0.1.1 (via: haste-compiler-0.5.5.1 feed-0.3.12.0) (new package)
void-0.7.2 (via: contravariant-1.4) (new package)
contravariant-1.4 (via: semigroupoids-5.2.1 profunctors-5.2.1 comonad-5.0.2) (new package)
comonad-5.0.2 (via: free-4.12.4 semigroupoids-5.2.1 profunctors-5.2.1 bifunctors-5.4.2) (new package)
bifunctors-5.4.2 (via: either-4.4.1.1 free-4.12.4 semigroupoids-5.2.1 profunctors-5.2.1) (new package)
profunctors-5.2.1 (via: either-4.4.1.1 free-4.12.4) (new package)
semigroupoids-5.2.1 (via: either-4.4.1.1 free-4.12.4) (new package)
free-4.12.4 (via: either-4.4.1.1) (new package)
either-4.4.1.1 (via: haste-compiler-0.5.5.1) (new package)
websockets-0.11.1.0 (latest: 0.12.2.0) (via: haste-compiler-0.5.5.1) (new package)
xml-1.3.14 (via: shellmate-0.2.3 feed-0.3.12.0) (new package)
feed-0.3.12.0 (via: shellmate-0.2.3) (new package)
shellmate-0.2.3 (latest: 0.3.4.2) (via: haste-compiler-0.5.5.1) (new package)
haste-compiler-0.5.5.1 (new package)
cabal: The following packages are likely to be broken by the reinstalls:
optparse-applicative-0.14.0.0
tasty-0.11.2.2
tasty-quickcheck-0.9.1
tasty-hunit-0.9.2
Use --force-reinstalls if you want to install anyway.