Sigh. The testsuite fails utterly on Windows, with thousands of identical errors =====> tc012(normal) 3039 of 4088 [1, 2677, 88] cd .\typecheck\should_compile && 'C:/code/HEAD/inplace/bin/ghc-stage2.exe' -fforce-recomp -dcore-lint -dcmm-lint -dno-debug-output -no-user-package-db -rtsopts -fno-ghci-history -c tc012.hs -fno-warn-incomplete-patterns >tc012.comp.stderr 2>&1 sh: line 0: cd: .typecheckshould_compile: No such file or directory Compile failed (status 256) errors were: *** unexpected failure for tc012(normal) Presumably this is some kind of Windows escape-character problem. But it has worked fine for years, so what is going on? It's very tiresome dealing with Windows breakage so frequently. A few regression test failures, maybe, but outright breakage is very bad. Simon