b4a1d559bd
__isnan() and __isnanf() must remain in libc for hysterical raisins. On the other hand, __isnanl() must live in libm because libm uses it internally and can't depend on older versions of libc to provide it. Fortunately, we don't need __isnanl() in both libraries. Prodded by: ale PR: 71698 MT5 candidate