Resolving dependencies... Configuring call-stack-0.1.0... Building call-stack-0.1.0... Installed call-stack-0.1.0 Configuring HUnit-1.5.0.0... Building HUnit-1.5.0.0... Installed HUnit-1.5.0.0 Configuring augeas-0.4.0... Failed to install augeas-0.4.0 Build log ( /home/builder/.cabal/logs/augeas-0.4.0.log ): cabal: Entering directory '/tmp/cabal-tmp-27320/augeas-0.4.0' Configuring augeas-0.4.0... checking for gcc... /usr/bin/gcc checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... no 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 library containing aug_init... -laugeas 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... yes 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 augeas.h usability... no checking augeas.h presence... no checking for augeas.h... no configure: error: Unable to find augeas.h. cabal: Leaving directory '/tmp/cabal-tmp-27320/augeas-0.4.0' cabal: Error: some packages failed to install: augeas-0.4.0 failed during the configure step. The exception was: ExitFailure 1