[cvs-nhc98] patch applied (nhc98): hmake invokes the compiler too many times if given multiple targets

[Malcolm Wallace]

Fri Apr 20 09:11:08 PDT 2007  Malcolm.Wallace at cs.york.ac.uk
  * hmake invokes the compiler too many times if given multiple targets
  This is a nuisance in the libraries, because some files low in the
  dependency tree get re-compiled far too often.  The workaround for now
  is to re-invoke hmake on each target separately, rather than invoke it
  once with multiple targets.

    M ./src/libraries/Makefile.common -3 +4