[parrot/parrot] daad3e: [mingw] fix build

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/parrot/parrot
  Commit: daad3e865e0757406f5dc875c2a3698906ce5334
      https://github.com/parrot/parrot/commit/daad3e865e0757406f5dc875c2a3698906ce5334
  Author: Francois Perrad <francois.perrad at gadz.org>
  Date:   2012-03-18 (Sun, 18 Mar 2012)

  Changed paths:
    M config/auto/headers.pm
  M include/parrot/parrot.h
  M src/runcore/cores.c
  M src/runcore/profiling.c
  M src/runcore/subprof.c

  Log Message:
  -----------
  [mingw] fix build

broken since https://github.com/parrot/parrot/commit/d923903bdf2183c223cca1b2887055fcbac0e588
where warning implicit-function-declaration becomes an error.
so, now probe process.h which declares _getpid.