EXIT_FAIL vs. EXIT_FAILURE

[Eric Blake]

system.h currently has:

/* Exit statuses for programs like 'env' that exec other programs.
   EXIT_FAILURE might not be 1, so use EXIT_FAIL in such programs.  */
enum
{
  EXIT_FAIL = 1,

But gnulib's stdlib_.h has:

/* Tandem/NSK and other platforms that define EXIT_FAILURE as -1 interfere
   with proper operation of xargs.  */
#ifndef EXIT_FAILURE
# define EXIT_FAILURE 1
#elif EXIT_FAILURE != 1
# undef EXIT_FAILURE
# define EXIT_FAILURE 1
#endif


In other words, thanks to gnulib, EXIT_FAILURE is guaranteed to be 1.  Is there 
any reason to keep EXIT_FAIL in coreutils sources any more?

-- 
Eric Blake