Compiling glibc-2.3.2 (-2.3.3?) snapshot 20031115 with gcc-3.4 snapshot 20031119

[Roland McGrath]

> OK!  The next question, then: do you assume that explicitly
> providing a default visibility, [...]

glibc never uses `visibility ("default")', it just omits the attribute
entirely when it doesn't want "hidden" in particular.