Insert code to handle instruction counts from Heimdall, as well as
CacheProf.

update for format changes in cacheprof.out.summary.

Removed fix for -ve MUT times,  Simon has put fix in rts/Stats.c,
which is where it should be.

Couple of fixes for -accept-output.

Remove old Spix stuff, replace with shiny new support for Julian's
CacheProf stuff.  yay!

Support for negative timings in the stats file.  (I've seen times of -0.00).
If a timing is negative then set it to 0.

Use +RTS -S<file> rather than +RTS -s<file>, since the latter only
gives summary statistics now.

New option, -fail, to indicate failure (whatever the return code).

Include GC bytes copied in stats string.

Print total memory in use as part of -ghc-timing output.

Update for new stats output.

Recognise "-- !!!" (as well as "--!!!") as the start of an interesting
comment. The latter isn't liked by a Haskell98 tokeniser, hence the change.

Move 4.01 onto the main trunk.

Tidied up -accept-output `feature\', should now work better.

Don't try to generate stdout files if using -accept-output.  It didn't
work anyway: a call to pop had stomped on the variable containing the
filename before it was used, setting it to the empty string.  The call
to touch then failed with a syntax error.

This behaviour seems more useful: sometimes you really don't want to
check the stdout and/or stderr, so you just don't create the file.

With -accept-output, create stdout&stderr dump files if does not exist

documented -accept-output

new option: -accept-output

2.03 update

Use eval exec .. trick rather than #!

Major update to more-or-less 2.02

New Build System!