Resolving dependencies...
Configuring ansi-terminal-0.6.2.3...
Configuring mtl-2.2.1...
Building mtl-2.2.1...
Building ansi-terminal-0.6.2.3...
Installed ansi-terminal-0.6.2.3
Configuring primitive-0.6.2.0...
Building primitive-0.6.2.0...
Configuring sdl2-1.0.2...
Installed mtl-2.2.1
Building sdl2-1.0.2...
Configuring transformers-compat-0.5.1.4...
Installed primitive-0.6.2.0
Building transformers-compat-0.5.1.4...
Configuring text-1.2.2.1...
Installed transformers-compat-0.5.1.4
Building text-1.2.2.1...
Configuring ansi-wl-pprint-0.6.7.3...
Installed sdl2-1.0.2
Building ansi-wl-pprint-0.6.7.3...
Installed ansi-wl-pprint-0.6.7.3
Configuring vector-0.12.0.0...
Building vector-0.12.0.0...
Configuring optparse-applicative-0.13.0.0...
Installed text-1.2.2.1
Building optparse-applicative-0.13.0.0...
Configuring parsec-3.1.11...
Installed optparse-applicative-0.13.0.0
Building parsec-3.1.11...
Installed parsec-3.1.11
Installed vector-0.12.0.0
Configuring spool-0.1...
Building spool-0.1...
Installed spool-0.1
Configuring dcpu16-0.1.0.1...
Building dcpu16-0.1.0.1...
Failed to install dcpu16-0.1.0.1
Build log ( /home/builder/.cabal/logs/dcpu16-0.1.0.1.log ):
cabal: Entering directory '/tmp/cabal-tmp-12566/dcpu16-0.1.0.1'
Configuring dcpu16-0.1.0.1...
Building dcpu16-0.1.0.1...
Preprocessing library dcpu16-0.1.0.1...
[1 of 9] Compiling Dcpu16.Utils     ( src/Dcpu16/Utils.hs, dist/build/Dcpu16/Utils.o )
[2 of 9] Compiling Dcpu16.Cpu       ( src/Dcpu16/Cpu.hs, dist/build/Dcpu16/Cpu.o )
[3 of 9] Compiling Dcpu16.Dumper    ( src/Dcpu16/Dumper.hs, dist/build/Dcpu16/Dumper.o )
[4 of 9] Compiling Dcpu16.Video     ( src/Dcpu16/Video.hs, dist/build/Dcpu16/Video.o )
[5 of 9] Compiling Dcpu16.Assembler.Syntax ( src/Dcpu16/Assembler/Syntax.hs, dist/build/Dcpu16/Assembler/Syntax.o )
[6 of 9] Compiling Dcpu16.Assembler.Parser ( src/Dcpu16/Assembler/Parser.hs, dist/build/Dcpu16/Assembler/Parser.o )
[7 of 9] Compiling Dcpu16.Assembler ( src/Dcpu16/Assembler.hs, dist/build/Dcpu16/Assembler.o )
[8 of 9] Compiling Dcpu16.Emulator  ( src/Dcpu16/Emulator.hs, dist/build/Dcpu16/Emulator.o )

src/Dcpu16/Emulator.hs:18:1: error:
    Failed to load interface for ‘SDL’
    Use -v to see a list of the files searched for.
cabal: Leaving directory '/tmp/cabal-tmp-12566/dcpu16-0.1.0.1'
cabal: Error: some packages failed to install:
dcpu16-0.1.0.1 failed during the building phase. The exception was:
ExitFailure 1