971127 glibc2 broken

[neal@ctd.comsat.com]

linux i586 glibc-2.0.5 egcs-971127.  It's broken:

g++ -o hello hello.cc
/usr/lib/libstdc++.so: undefined reference to `_pthread_cleanup_pop_restore'
/usr/lib/libstdc++.so: undefined reference to `_pthread_cleanup_push_defer'

I suspect that we're missing a file that should be in libio/config for 
linuxlibc2?