[Haskell-cafe] Failure to load hmatric

[dlb at patriot.net]

OK, I'm working on matrix stuff in Haskell now (I've been trying to get
the professor to approve that) and when I use cabal install to install
hmatrix, it fails at HUnit with:
-----------
Configuring HUnit-1.2.2.1...
Preprocessing library HUnit-1.2.2.1...
Preprocessing executables for HUnit-1.2.2.1...
Building HUnit-1.2.2.1...
[1 of 5] Compiling Test.HUnit.Terminal ( Test/HUnit/Terminal.hs,
dist/build/Test/HUnit/Terminal.o )
[2 of 5] Compiling Test.HUnit.Lang  ( Test/HUnit/Lang.hs,
dist/build/Test/HUnit/Lang.o )
[3 of 5] Compiling Test.HUnit.Base  ( Test/HUnit/Base.hs,
dist/build/Test/HUnit/Base.o )
[4 of 5] Compiling Test.HUnit.Text  ( Test/HUnit/Text.hs,
dist/build/Test/HUnit/Text.o )
[5 of 5] Compiling Test.HUnit       ( Test/HUnit.hs,
dist/build/Test/HUnit.o )
/usr/bin/ar: creating dist/build/libHSHUnit-1.2.2.1.a

Test/HUnit/Lang.hs:22:1: lexical error at character 'i'
cabal: Error: some packages failed to install:
HUnit-1.2.2.1 failed during the building phase. The exception was:
exit: ExitFailure 1
----------------

Short term question:  what the heck do I do with this?

Long term question: how can I handle cabal failures of this type without
bothering the list every time?

Dave Barton
University of Toronto