Resolving dependencies...
Configuring mtl-2.2.1...
Configuring primitive-0.6.1.0...
Building primitive-0.6.1.0...
Building mtl-2.2.1...
Installed mtl-2.2.1
Configuring stm-2.4.4.1...
Configuring transformers-compat-0.5.1.4...
Installed primitive-0.6.1.0
Building stm-2.4.4.1...
Building transformers-compat-0.5.1.4...
Configuring text-1.2.2.1...
Installed transformers-compat-0.5.1.4
Building text-1.2.2.1...
Installed stm-2.4.4.1
Configuring mmorph-1.0.9...
Building mmorph-1.0.9...
Configuring exceptions-0.8.3...
Installed mmorph-1.0.9
Building exceptions-0.8.3...
Configuring transformers-base-0.4.4...
Installed exceptions-0.8.3
Building transformers-base-0.4.4...
Configuring vector-0.11.0.0...
Installed transformers-base-0.4.4
Building vector-0.11.0.0...
Configuring monad-control-1.0.1.0...
Installed text-1.2.2.1
Building monad-control-1.0.1.0...
Installed monad-control-1.0.1.0
Configuring hashable-1.2.5.0...
Building hashable-1.2.5.0...
Configuring lifted-base-0.2.3.8...
Installed hashable-1.2.5.0
Building lifted-base-0.2.3.8...
Installed lifted-base-0.2.3.8
Configuring resourcet-1.1.9...
Building resourcet-1.1.9...
Installed resourcet-1.1.9
Installed vector-0.11.0.0
Configuring LibClang-3.8.0...
Failed to install LibClang-3.8.0
Build log ( /home/builder/.cabal/logs/LibClang-3.8.0.log ):
cabal: Entering directory '/tmp/cabal-tmp-10217/LibClang-3.8.0'
[1 of 1] Compiling Main             ( /tmp/cabal-tmp-10217/LibClang-3.8.0/dist/setup/setup.hs, /tmp/cabal-tmp-10217/LibClang-3.8.0/dist/setup/Main.o )
Linking /tmp/cabal-tmp-10217/LibClang-3.8.0/dist/setup/setup ...
Configuring LibClang-3.8.0...
setup: The pkg-config package 'llvm' version ==3.8.* is required but the
version installed on the system is version 3.4
cabal: Leaving directory '/tmp/cabal-tmp-10217/LibClang-3.8.0'
cabal: Error: some packages failed to install:
LibClang-3.8.0 failed during the configure step. The exception was:
ExitFailure 1