[PATCH 17/19 v2] Use IS_IN only when _LIBC is defined

[Andreas Schwab]

Roland McGrath <roland@hack.frob.com> writes:

> I see.  I was not expecting such an error because it doesn't give one for
> "#if defined notdefined && alsonotdefined" but evidently the function-like
> macro case is different.

The problem is that all remaining identifiers are replaced by 0 before
the expression is evaluated, thus resulting in a non-syntactical
expression.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."