space in making 6.10.1-candidate

[Serge D. Mechveliani]

Another point in testing  ghc-6.10.0.20081007:

I make it from source on Debian Linux.
On  1 Gb - 2 GHz machine,  it builds in 1400 sec.
On  512 Mb  machine, it seems to overfill RAM, it becomes slow, and 
this `make' creates difficulties for other processes (like emacs editor): 
they start to hang, a bit, and the `top' command shows 85% RAM used by 
this `make', now and then (and probably it takes more, sometimes).

This effect is in making  ghc-6.10.0.20081007  from source by  
ghc-6.10.0.20080921  on Debian Linux, on 512 Mb RAM i386-like machine.

This was not so in earlier GHC versions. 
Can this be improved?  
Because 512 Mb is much enough.

The last messages (after which I interruptred it) is
------------------------
make -C compiler  doc stage=2
make[2]: Entering directory 
`/home/mechvel/ghc/6.10.1cand/ghc-6.10.0.20081007/compiler'
/home/mechvel/ghc/6.10.1cand/ghc-6.10.0.20081007/libraries/cabal-bin 
  /home/mechvel/ghc/6.10cand/inst0/bin/ghc 
  /home/mechvel/ghc/6.10.1cand/ghc-6.10.0.20081007/
    libraries/bootstrapping.conf haddock --distpref dist-stage2 
                         --haddock-option=--optghc=-DSTAGE=2 
   --with-haddock=/home/mechvel/ghc/6.10.1cand/ghc-6.10.0.20081007/
                                  utils/haddock/install-inplace/bin/haddock
Preprocessing library ghc-6.10.0.20081007...
Running Haddock for ghc-6.10.0.20081007...
Warning: The documentation for the following packages are not installed. 
No links will be generated to these packages: rts-1.0
Preprocessing library ghc-6.10.0.20081007...
make[2]: *** [doc.stage.2] ..
make[1]: *** [stage2] Interruption
make: *** [bootstrap2] Interruption
----------------------------------------------

Regards, 

-----------------
Serge Mechveliani
mechvel at botik.ru