Apply: Protection against spaces in $PATH (second try)

[Akim Demaille]

  Nevertheless, it should be safe just to scan $PATH, however you may
  still have a problem if your awk is indeed in //C/Program
  Files/Visual AWK/bin/awk :-)

:) :) :)

  Now the testsuite passes on CygWin 1.1.4, WinNT 4.0 SP6. There has
  been one more quirk - I had to make a link from "gcc" to "cc"
  because AC_PROG_CPP assumes that $CC is set and uses "cc" otherwise.

Ah, yes, we still have to move AC_PROG_CPP into AC_PROG_CC.  I'll take
care of it.

Thanks Pavel, thanks a lot.