Resolving dependencies...
Configuring ObjectName-1.1.0.1...
Configuring fixed-0.2.1.1...
Building ObjectName-1.1.0.1...
Building fixed-0.2.1.1...
Installed ObjectName-1.1.0.1
Configuring half-0.2.2.3...
Configuring stm-2.4.4.1...
Installed fixed-0.2.1.1
Building half-0.2.2.3...
Building stm-2.4.4.1...
Configuring random-1.1...
Installed half-0.2.2.3
Building random-1.1...
Configuring text-1.2.2.1...
Installed stm-2.4.4.1
Building text-1.2.2.1...
Configuring StateVar-1.1.0.4...
Installed random-1.1
Building StateVar-1.1.0.4...
Installed StateVar-1.1.0.4
Installed text-1.2.2.1
Configuring OpenGLRaw-3.2.4.0...
Building OpenGLRaw-3.2.4.0...
Installed OpenGLRaw-3.2.4.0
Configuring GLURaw-2.0.0.3...
Building GLURaw-2.0.0.3...
Installed GLURaw-2.0.0.3
Configuring OpenGL-3.0.1.0...
Building OpenGL-3.0.1.0...
Installed OpenGL-3.0.1.0
Configuring OpenAL-1.7.0.4...
Configuring GLUT-2.7.0.10...
Building OpenAL-1.7.0.4...
Building GLUT-2.7.0.10...
Installed OpenAL-1.7.0.4
Configuring ALUT-2.4.0.2...
Building ALUT-2.4.0.2...
Installed ALUT-2.4.0.2
Installed GLUT-2.7.0.10
Configuring topkata-0.2...
Building topkata-0.2...
Failed to install topkata-0.2
Build log ( /home/builder/.cabal/logs/topkata-0.2.log ):
cabal: Entering directory '/tmp/cabal-tmp-25517/topkata-0.2'
Configuring topkata-0.2...
Building topkata-0.2...
Preprocessing executable 'topkata' for topkata-0.2...
[1 of 9] Compiling Vector           ( Vector.hs, dist/build/topkata/topkata-tmp/Vector.o )

Vector.hs:35:21: error:
    • Could not deduce (Eq a) arising from the literal ‘0’
      from the context: Floating a
        bound by the instance declaration at Vector.hs:23:10-38
      Possible fix: add (Eq a) to the context of the instance declaration
    • In the pattern: 0
      In the pattern: Vector3 0 0 0
      In an equation for ‘signum’: signum (Vector3 0 0 0) = 0
cabal: Leaving directory '/tmp/cabal-tmp-25517/topkata-0.2'
cabal: Error: some packages failed to install:
topkata-0.2 failed during the building phase. The exception was:
ExitFailure 1