1) ghc version 7.6.3 2) cabal version 1.16.0.2 3) when i run "cabal install", I receive on stdout : Resolving dependencies... Configuring readline-1.0.3.0... checking for gcc... gcc checking for C compiler default output file name... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed checking for GNUreadline.framework... checking for readline... no checking for tputs in -lncurses... no checking for tputs in -ltermcap... no checking for tputs in -lcurses... no checking for rl_readline_version... no configure: error: readline not found, so this package cannot be built See `config.log' for more details. Failed to install readline-1.0.3.0 cabal: Error: some packages failed to install: hoq-0.3 depends on readline-1.0.3.0 which failed to install. readline-1.0.3.0 failed during the configure step. The exception was: ExitFailure 1 4) I googled Haskell and readline and I found the same error with other Haskell packages like Twitter. How do I resolve my build readline problem? Vasya