Resolving dependencies...
Configuring primitive-0.6.2.0...
Building primitive-0.6.2.0...
Installed primitive-0.6.2.0
Configuring vector-0.12.0.1...
Building vector-0.12.0.1...
Installed vector-0.12.0.1
Downloading nlopt-haskell-0.1.0.0...
Configuring nlopt-haskell-0.1.0.0...
Failed to install nlopt-haskell-0.1.0.0
Build log ( /home/builder/.cabal/logs/nlopt-haskell-0.1.0.0.log ):
cabal: Entering directory '/tmp/cabal-tmp-15642/nlopt-haskell-0.1.0.0'
Configuring nlopt-haskell-0.1.0.0...
cabal: Missing dependency on a foreign library:
* Missing C library: nlopt
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-15642/nlopt-haskell-0.1.0.0'
cabal: Error: some packages failed to install:
nlopt-haskell-0.1.0.0 failed during the configure step. The exception was:
ExitFailure 1