Resolving dependencies... Configuring base-orphans-0.6... Configuring base-compat-0.9.3... Building base-orphans-0.6... Building base-compat-0.9.3... Configuring cabal-doctest-1.0.2... Installed base-orphans-0.6 Building cabal-doctest-1.0.2... Configuring cereal-0.5.4.0... Installed base-compat-0.9.3 Building cereal-0.5.4.0... Installed cabal-doctest-1.0.2 Configuring enummapset-th-0.6.1.1... Building enummapset-th-0.6.1.1... Installed cereal-0.5.4.0 Configuring fail-4.9.0.0... Building fail-4.9.0.0... Installed fail-4.9.0.0 Configuring haskell-lexer-1.0.1... Building haskell-lexer-1.0.1... Configuring integer-logarithms-1.0.1... Installed enummapset-th-0.6.1.1 Building integer-logarithms-1.0.1... Configuring mtl-2.2.1... Installed integer-logarithms-1.0.1 Building mtl-2.2.1... Configuring prelude-extras-0.4.0.3... Installed mtl-2.2.1 Building prelude-extras-0.4.0.3... Configuring parallel-3.2.1.1... Installed prelude-extras-0.4.0.3 Configuring random-1.1... Installed haskell-lexer-1.0.1 Building parallel-3.2.1.1... Building random-1.1... Configuring primitive-0.6.2.0... Installed parallel-3.2.1.1 Building primitive-0.6.2.0... Configuring reflection-2.1.2... Installed random-1.1 Building reflection-2.1.2... Configuring stm-2.4.4.1... Installed reflection-2.1.2 Building stm-2.4.4.1... Configuring semigroups-0.18.3... Installed primitive-0.6.2.0 Building semigroups-0.18.3... Configuring text-1.2.2.2... Installed semigroups-0.18.3 Configuring transformers-compat-0.5.1.4... Building text-1.2.2.2... Installed stm-2.4.4.1 Building transformers-compat-0.5.1.4... Configuring zlib-0.6.1.2... Installed transformers-compat-0.5.1.4 Building zlib-0.6.1.2... Configuring void-0.7.2... Installed zlib-0.6.1.2 Building void-0.7.2... Installed void-0.7.2 Configuring pretty-show-1.6.13... Building pretty-show-1.6.13... Configuring StateVar-1.1.0.4... Installed pretty-show-1.6.13 Building StateVar-1.1.0.4... Configuring vector-0.12.0.1... Installed text-1.2.2.2 Building vector-0.12.0.1... Configuring async-2.1.1.1... Installed StateVar-1.1.0.4 Building async-2.1.1.1... Configuring exceptions-0.8.3... Installed async-2.1.1.1 Building exceptions-0.8.3... Configuring tagged-0.8.5... Installed exceptions-0.8.3 Building tagged-0.8.5... Installed tagged-0.8.5 Configuring assert-failure-0.1.1.0... Building assert-failure-0.1.1.0... Configuring minimorph-0.1.6.1... Installed assert-failure-0.1.1.0 Building minimorph-0.1.6.1... Configuring hashable-1.2.6.0... Installed minimorph-0.1.6.1 Building hashable-1.2.6.0... Configuring contravariant-1.4... Installed hashable-1.2.6.0 Building contravariant-1.4... Configuring parsec-3.1.11... Installed vector-0.12.0.1 Configuring distributive-0.5.2... Installed contravariant-1.4 Building parsec-3.1.11... Building distributive-0.5.2... Installed distributive-0.5.2 Configuring miniutter-0.4.6.0... Installed parsec-3.1.11 Configuring unordered-containers-0.2.8.0... Building miniutter-0.4.6.0... Building unordered-containers-0.2.8.0... Configuring scientific-0.3.4.13... Installed miniutter-0.4.6.0 Building scientific-0.3.4.13... Configuring vector-binary-instances-0.2.3.5... Installed unordered-containers-0.2.8.0 Building vector-binary-instances-0.2.3.5... Configuring comonad-5.0.1... Installed scientific-0.3.4.13 Installed vector-binary-instances-0.2.3.5 Configuring hsini-0.5.0... Building comonad-5.0.1... Building hsini-0.5.0... Configuring bytes-0.15.3... Installed comonad-5.0.1 Installed hsini-0.5.0 Configuring bifunctors-5.4.2... Building bifunctors-5.4.2... Building bytes-0.15.3... Installed bifunctors-5.4.2 Configuring semigroupoids-5.2... Configuring profunctors-5.2... Installed bytes-0.15.3 Building profunctors-5.2... Building semigroupoids-5.2... Installed profunctors-5.2 Installed semigroupoids-5.2 Configuring free-4.12.4... Building free-4.12.4... Installed free-4.12.4 Configuring keys-3.11... Configuring adjunctions-4.3... Building adjunctions-4.3... Building keys-3.11... Installed keys-3.11 Installed adjunctions-4.3 Configuring kan-extensions-5.0.2... Building kan-extensions-5.0.2... Installed kan-extensions-5.0.2 Configuring lens-4.15.2... Building lens-4.15.2... Installed lens-4.15.2 Configuring linear-1.20.6... Building linear-1.20.6... Installed linear-1.20.6 Downloading sdl2-2.1.3.1... Configuring sdl2-2.1.3.1... Building sdl2-2.1.3.1... Installed sdl2-2.1.3.1 Configuring sdl2-ttf-1.0.0... Failed to install sdl2-ttf-1.0.0 Build log ( /home/builder/.cabal/logs/sdl2-ttf-1.0.0.log ): cabal: Entering directory '/tmp/cabal-tmp-2422/sdl2-ttf-1.0.0' Configuring sdl2-ttf-1.0.0... cabal: Missing dependency on a foreign library: * Missing C library: SDL2_ttf 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. cabal: Leaving directory '/tmp/cabal-tmp-2422/sdl2-ttf-1.0.0' cabal: Error: some packages failed to install: Allure-0.6.0.0 depends on sdl2-ttf-1.0.0 which failed to install. LambdaHack-0.6.0.0 depends on sdl2-ttf-1.0.0 which failed to install. sdl2-ttf-1.0.0 failed during the configure step. The exception was: ExitFailure 1