* ordered the declarations the same was as in bunxh.inc, so it's easier
    to see what's missing
  + added missing declarations for fpexecv (causing an unnecessary
    slowdown in executeprocess due to it calling the ansistring overload),
    fplink, fpwait and fpsetrlimit
  * changed sigset parameters of FpSigSuspend and FpSigTimedWait from const
    into constref, since they must be passed by reference

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25167 3ad0048d-3df7-0310-abae-a5850022a9f2