Configuring Dust-2.1... Dependency base ==4.6.0.1: using base-4.6.0.1 Dependency binary ==0.5.1.1: using binary-0.5.1.1 Dependency bytestring ==0.10.0.2: using bytestring-0.10.0.2 Dependency cereal ==0.4.0.0: using cereal-0.4.0.0 Dependency cipher-aes ==0.1.8: using cipher-aes-0.1.8 Dependency containers ==0.5.0.0: using containers-0.5.0.0 Dependency directory ==1.2.0.1: using directory-1.2.0.1 Dependency entropy ==0.2.2.4: using entropy-0.2.2.4 Dependency ghc-prim ==0.3.0.0: using ghc-prim-0.3.0.0 Dependency network ==2.4.1.2: using network-2.4.1.2 Dependency random ==1.0.1.1: using random-1.0.1.1 Dependency random-extras ==0.19: using random-extras-0.19 Dependency random-fu ==0.2.4.0: using random-fu-0.2.4.0 Dependency random-source ==0.3.0.6: using random-source-0.3.0.6 Dependency split ==0.2.2: using split-0.2.2 Using Cabal-1.16.0.3 compiled by ghc-7.6 Using compiler: ghc-7.6.3 Using install prefix: /srv/hackage/var/build/cache/inst Binaries installed in: /srv/hackage/var/build/cache/inst/bin Libraries installed in: /srv/hackage/var/build/cache/inst/lib/Dust-2.1/ghc-7.6.3 Private binaries installed in: /srv/hackage/var/build/cache/inst/libexec Data files installed in: /srv/hackage/var/build/cache/inst/share/Dust-2.1 Documentation installed in: /srv/hackage/var/build/cache/inst/share/doc/Dust-2.1 Using alex version 3.0.1 found on system at: /usr/bin/alex Using ar found on system at: /usr/bin/ar No c2hs found No cpphs found No ffihugs found Using gcc version 4.7 found on system at: /usr/bin/gcc Using ghc version 7.6.3 found on system at: /usr/local/bin/ghc Using ghc-pkg version 7.6.3 found on system at: /usr/local/bin/ghc-pkg No greencard found Using haddock version 2.13.2 found on system at: /usr/local/bin/haddock Using happy version 1.18.9 found on system at: /usr/bin/happy No hmake found Using hpc version 0.6 found on system at: /usr/local/bin/hpc Using hsc2hs version 0.67 found on system at: /usr/local/bin/hsc2hs Using hscolour version 1.19 found on system at: /usr/bin/HsColour No hugs found No jhc found Using ld found on system at: /usr/bin/ld No lhc found No lhc-pkg found No nhc98 found No pkg-config found Using ranlib found on system at: /usr/bin/ranlib Using strip found on system at: /usr/bin/strip Using tar found on system at: /bin/tar No uhc found setup-Cabal-1.16.0.3-ghc-7.6.3: Missing dependency on a foreign library: * Missing C library: crypto 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.