Cabal doesn't echo commands with -v on Windows

[Simon Peyton-Jones]

Cabal with -v should echo the commands it is executing.  But on Windows
it doesn't.  See the error log below.  (This is when compiling the
FastPackedString Cabal package, in fact.)

Simon M thinks it might be a buffering issue.  Flush before calling any
command?

Simon


sh-2.04$ runghc Setup.hs -v build
Preprocessing library fps-0.1...
Building fps-0.1...
<Windows pops up the GHC-has-crashed window>