[Haskell-cafe] Installing REPA

[Peter Simons]

Hi Ben,

 > I've just pushed Repa 3 onto Hackage, which has a much better API
 > than the older versions, and solves several code fusion problems.

when using the latest version of REPA with GHC 7.4.1, I have trouble
building the repa-examples package:

 | Building repa-examples-3.0.0.1...
 | Preprocessing executable 'repa-volume' for repa-examples-3.0.0.1...
 | [1 of 1] Compiling Main             ( examples/Volume/Main.hs, dist/build/repa-volume/repa-volume-tmp/Main.o )
 | Linking dist/build/repa-volume/repa-volume ...
 | Preprocessing executable 'repa-sobel' for repa-examples-3.0.0.1...
 | [1 of 2] Compiling Solver           ( examples/Sobel/src-repa/Solver.hs, dist/build/repa-sobel/repa-sobel-tmp/Solver.o )
 | Loading package ghc-prim ... linking ... done.
 | Loading package integer-gmp ... linking ... done.
 | Loading package base ... linking ... done.
 | Loading package array-0.4.0.0 ... linking ... done.
 | Loading package bytestring-0.9.2.1 ... linking ... done.
 | Loading package deepseq-1.3.0.0 ... linking ... done.
 | Loading package containers-0.4.2.1 ... linking ... done.
 | Loading package binary-0.5.1.0 ... linking ... done.
 | Loading package bmp-1.2.1.1 ... linking ... done.
 | Loading package old-locale-1.0.0.4 ... linking ... done.
 | Loading package old-time-1.1.0.0 ... linking ... done.
 | Loading package extensible-exceptions-0.1.1.4 ... linking ... done.
 | Loading package time-1.4 ... linking ... done.
 | Loading package random-1.0.1.1 ... linking ... done.
 | Loading package pretty-1.1.1.0 ... linking ... done.
 | Loading package template-haskell ... linking ... done.
 | Loading package QuickCheck-2.4.2 ... linking ... done.
 | Loading package primitive-0.4.1 ... linking ... done.
 | Loading package vector-0.9.1 ... linking ... done.
 | Loading package repa-3.0.0.1 ... linking ... done.
 | Loading package repa-io-3.0.0.1 ... linking ... done.
 | Loading package repa-algorithms-3.0.0.1 ... linking ... done.
 | [2 of 2] Compiling Main             ( examples/Sobel/src-repa/Main.hs, dist/build/repa-sobel/repa-sobel-tmp/Main.o )
 | Linking dist/build/repa-sobel/repa-sobel ...
 | Preprocessing executable 'repa-mmult' for repa-examples-3.0.0.1...
 | 
 | examples/MMult/src-repa/Main.hs:3:8:
 |     Could not find module `Solver'
 |     Use -v to see a list of the files searched for.

When I attempt to use repa 3.1.x, the build won't even get past the
configure stage, because Cabal refuses these dependencies. Is that a
known problem, or am I doing something wrong?

Take care,
Peter