Configuring hruby-0.1.2... Flags chosen: ruby19=False, ruby20=False Dependency aeson ==0.6.2.1: using aeson-0.6.2.1 Dependency attoparsec ==0.10.4.0: using attoparsec-0.10.4.0 Dependency base ==4.6.0.1: using base-4.6.0.1 Dependency bytestring ==0.10.0.2: using bytestring-0.10.0.2 Dependency text ==0.11.2.3: using text-0.11.2.3 Dependency unordered-containers ==0.2.3.3: using unordered-containers-0.2.3.3 Dependency vector ==0.10.9.1: using vector-0.10.9.1 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/hruby-0.1.2/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/hruby-0.1.2 Documentation installed in: /srv/hackage/var/build/cache/inst/share/doc/hruby-0.1.2 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: ruby1.8 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.