Resolving dependencies... Configuring call-stack-0.1.0... Configuring OneTuple-0.2.2... Building OneTuple-0.2.2... Building call-stack-0.1.0... Installed call-stack-0.1.0 Configuring editline-0.2.1.0... Installed OneTuple-0.2.2 Configuring fgl-5.6.0.0... Building fgl-5.6.0.0... Failed to install editline-0.2.1.0 Build log ( /home/builder/.cabal/logs/ghc-8.4.3/editline-0.2.1.0-AIiHzolgwlk2TwmELFE6Of.log ): cabal: Entering directory '/tmp/cabal-tmp-31951/editline-0.2.1.0' Warning: editline.cabal:19:3: Tabs used as indentation at 19:3, 20:3, 23:3, 24:3 Configuring editline-0.2.1.0... checking for gcc... /usr/bin/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 /usr/bin/gcc accepts -g... yes checking for /usr/bin/gcc option to accept ISO C89... none needed checking for tputs in -lncurses... yes checking for el_init... no checking for readline... no checking how to run the C preprocessor... /usr/bin/gcc -E checking for grep that handles long lines and -e... /bin/grep checking for egrep... /bin/grep -E checking for ANSI C header files... no checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking editline/readline.h usability... no checking editline/readline.h presence... no checking for editline/readline.h... no checking editline/editline.h usability... no checking editline/editline.h presence... no checking for editline/editline.h... no checking readline/readline.h usability... yes checking readline/readline.h presence... yes checking for readline/readline.h... yes checking for sign of read_history result on error... negative checking for rl_completion_matches... no checking for completion_matches... no configure: error: editline not found, so this package cannot be built See `config.log' for more details. cabal: Leaving directory '/tmp/cabal-tmp-31951/editline-0.2.1.0' Configuring incremental-sat-solver-0.1.8... Building incremental-sat-solver-0.1.8... Installed incremental-sat-solver-0.1.8 Installed fgl-5.6.0.0 cabal: Error: some packages failed to install: alms-0.6.9-Fn09A673U5MBZR99qoT2D7 depends on alms-0.6.9 which failed to install. editline-0.2.1.0-AIiHzolgwlk2TwmELFE6Of failed during the configure step. The exception was: ExitFailure 1