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... yes
checking for readline in -lreadline... yes
checking for rl_readline_version... yes
checking for rl_begin_undo_group... yes
checking for rl_erase_empty_line... yes
checking for rl_free_undo_list... yes
checking for rl_completion_word_break_hook in -lreadline... yes
configure: creating ./config.status
config.status: creating config.mk
config.status: creating readline.buildinfo
config.status: creating include/HsReadlineConfig.h
config.status: include/HsReadlineConfig.h is unchanged
Building readline-1.0.3.0...
Preprocessing library readline-1.0.3.0...
[1 of 2] Compiling System.Console.SimpleLineEditor ( System/Console/SimpleLineEditor.hs, dist/build/System/Console/SimpleLineEditor.o )
[2 of 2] Compiling System.Console.Readline ( dist/build/System/Console/Readline.hs, dist/build/System/Console/Readline.o )
In-place registering readline-1.0.3.0...
Running Haddock for readline-1.0.3.0...
Running hscolour for readline-1.0.3.0...
Preprocessing library readline-1.0.3.0...
Preprocessing library readline-1.0.3.0...
Haddock coverage:
  80% (  4 /  5) in 'System.Console.SimpleLineEditor'
   2% (  3 /133) in 'System.Console.Readline'
Documentation created: dist/doc/html/readline/index.html
Installing library in
/srv/hackage/var/build/tmp-install/lib/x86_64-linux-ghc-7.6.3/readline-1.0.3.0
Registering readline-1.0.3.0...
Installed readline-1.0.3.0
Downloading djinn-2008.1.18...
[1 of 1] Compiling Main             ( /tmp/djinn-2008.1.18-6912/djinn-2008.1.18/Setup.lhs, /tmp/djinn-2008.1.18-6912/djinn-2008.1.18/dist/setup/Main.o )
Linking /tmp/djinn-2008.1.18-6912/djinn-2008.1.18/dist/setup/setup ...
Configuring djinn-2008.1.18...
Warning: No 'build-type' specified. If you do not need a custom Setup.hs or
./configure script then use 'build-type: Simple'.
Building djinn-2008.1.18...
Preprocessing executable 'djinn' for djinn-2008.1.18...
[1 of 9] Compiling Util.Sort        ( Djinn/Util/Sort.hs, dist/build/djinn/djinn-tmp/Util/Sort.o )
[2 of 9] Compiling LJTFormula       ( Djinn/LJTFormula.hs, dist/build/djinn/djinn-tmp/LJTFormula.o )
[3 of 9] Compiling Util.Digraph     ( Djinn/Util/Digraph.hs, dist/build/djinn/djinn-tmp/Util/Digraph.o )
[4 of 9] Compiling Help             ( Djinn/Help.hs, dist/build/djinn/djinn-tmp/Help.o )
[5 of 9] Compiling HTypes           ( Djinn/HTypes.hs, dist/build/djinn/djinn-tmp/HTypes.o )

Djinn/HTypes.hs:87:5: Warning:
    A do-notation statement discarded a result of type Char.
    Suppress this warning by saying "_ <- char ')'",
    or by using the flag -fno-warn-unused-do-bind

Djinn/HTypes.hs:132:5: Warning:
    A do-notation statement discarded a result of type Char.
    Suppress this warning by saying "_ <- char c",
    or by using the flag -fno-warn-unused-do-bind

<no location info>: 
Failing due to -Werror.
Failed to install djinn-2008.1.18
cabal: Error: some packages failed to install:
djinn-2008.1.18 failed during the building phase. The exception was:
ExitFailure 1