While working on it, I realized that there were more symbols which were
never exposed, and AIUI it's just by luck that glibc libraries never
made a reference to them, because gcc was by luck always inlining them.
* hurd/Versions (libc: GLIBC_2.22): Add _hurd_fd_error_signal,
_hurd_fd_error, __hurd_dfail, __hurd_sockfail,
__hurd_threadvar_location_from_sp, __hurd_threadvar_location,
_hurd_userlink_link, _hurd_userlink_unlink, _hurd_userlink_clear.
diff --git a/hurd/Versions b/hurd/Versions
index 77f5b42..91403a6 100644
--- a/hurd/Versions
+++ b/hurd/Versions
@@ -129,6 +129,14 @@ libc {
# functions used in macros & inline functions
__errno_location;
}
+ GLIBC_2.22 {
+ # These always existed as inlines but the real functions were not exported.
+ _hurd_fd_error_signal; _hurd_fd_error;
+ __hurd_dfail; __hurd_sockfail;
+ __hurd_threadvar_location_from_sp;
+ __hurd_threadvar_location;
+ _hurd_userlink_link; _hurd_userlink_unlink; _hurd_userlink_clear;
+ }
HURD_CTHREADS_0.3 {
# weak refs to libthreads functions that libc calls iff libthreads in use
