Comment 9 for bug 1570055

Ok, the issue with firebird3.0 in Debian has been resolved, see [1]. And, this isn't actually a toolchain or glibc regression, the behavior is by design, see [2].

To cut a long story short, when using version scripts, an application **must** always export the _IO_stdin_used symbol as it is used by glibc to determine the libio ABI.

Adrian

> [1] https://bugs.debian.org/840666
> [2] http://lists.gnu.org/archive/html/bug-glibc/2001-12/msg00203.html