syntax error if the #define happens before stdlib.h is included.
If abs is #defined, #undef and issue a warning.  This is similar
to what Tru64 UNIX does and is effectively the same as what happens
on Solaris (though on Solaris the real abs() is a macro).

__attribute__ statement. Using '__printf__' makes it happy.
ok millert@ miod@

millert@ espie@ ok

Needed for cap_mkdb to really DRT when given several input files or
an output file with a different name from the input file.
cvs: ----------------------------------------------------------------------

Redefining it as a typedef is an error, as it prevents overloading
on e.g., int/wchar_t separately.

__null is a magic constant of integral type that converts to a null pointer
as should be, but warns for ambiguity when used to resolved an overload
between an integral type and a pointer type.

really change the API since those parameters that was been constified
really are not modified by getcap(3) routines.

All POSIX libc api now there (to P1003.1c/D10)
(more md stuff is needed for other libc/arch/*)
(setlogin is no longer a special syscall)
Add -pthread option to gcc (that makes it use -lc_r and -D_POSIX_THREADS).
Doc some re-entrant routines
Add libc_r to intro(3)
dig() uses some libc srcs and an extra -I was needed there.
Add more md stuff to libc_r.
Update includes for the pthreads api
Update libc_r TODO

setstate takes a const parameter
don't ever spew to stderr, just return NULL

entire trees for testing anyway, I might as well do this intrusive touching
of include files now.  Added openBSD tags.

netbsd pr#1845