Resolving dependencies...
Configuring mtl-2.2.1...
Configuring primitive-0.6.1.0...
Building mtl-2.2.1...
Building primitive-0.6.1.0...
Installed mtl-2.2.1
Configuring text-1.2.2.1...
Installed primitive-0.6.1.0
Configuring vector-0.11.0.0...
Building text-1.2.2.1...
Building vector-0.11.0.0...
Installed text-1.2.2.1
Configuring hashable-1.2.4.0...
Building hashable-1.2.4.0...
Installed hashable-1.2.4.0
Configuring unordered-containers-0.2.7.1...
Building unordered-containers-0.2.7.1...
Installed vector-0.11.0.0
Installed unordered-containers-0.2.7.1
Configuring cplex-hs-0.5.0.2...
Failed to install cplex-hs-0.5.0.2
Build log ( /home/builder/.cabal/logs/cplex-hs-0.5.0.2.log ):
cabal: Entering directory '/tmp/cabal-tmp-27072/cplex-hs-0.5.0.2'
Configuring cplex-hs-0.5.0.2...
cabal: Missing dependency on a foreign library:
* Missing C library: cplex
This problem can usually be solved by installing the system package that
provides this library (you may need the "-dev" version). If the library is
already installed but in a non-standard location then you can use the flags
--extra-include-dirs= and --extra-lib-dirs= to specify where it is.
cabal: Leaving directory '/tmp/cabal-tmp-27072/cplex-hs-0.5.0.2'
cabal: Error: some packages failed to install:
cplex-hs-0.5.0.2 failed during the configure step. The exception was:
ExitFailure 1