make clean fails (in utils/hsc2hs?) on 6.10

[nr]

make clean halts with an error message. Here's the tail of the output:

make -C hpc clean
/home/nr/net/ghc/2009-feb-dias/libraries/cabal-bin /usr/bin/ghc /home/nr/net/ghc/2009-feb-dias/libraries/bootstrapping.conf 1.7.0 clean --distpref dist-inplace
cleaning...
/home/nr/net/ghc/2009-feb-dias/libraries/cabal-bin /usr/bin/ghc /home/nr/net/ghc/2009-feb-dias/libraries/bootstrapping.conf 1.7.0 clean --distpref dist-install
cleaning...
rm -f -rf install-inplace
make -C hsc2hs clean
make[2]: *** No rule to make target `clean'.  Stop.
make[1]: *** [clean.hsc2hs] Error 2
Failed making clean in utils: 1
make: *** [clean] Error 1
: nr@homedog 2958 

I ran darcs-all get but this left me with an empty utils/hsc2hs directory, which turned out to be the cause of the problem. Removing the empty directory and re-running darcs-all get solved the problem. Not sure if this one is likely to recur, but I thought you should know about it. Perhaps ./configure ought to fail if a directory that should be nonempty is found to be empty?

[simonmar]

Fixed in the new build system:

Tue Mar  3 16:07:59 GMT 2009  Simon Marlow <marlowsd@gmail.com>
  * FIX #3040: test for $dir/ghc.mk instead of just $dir
  catches cases where darcs has failed and left an empty directory