[Bug bootstrap/64919] bootstrap failure of gcc-4.9.2 on ia64-hpux in libgcc

[alm at sibmail dot ru]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64919

--- Comment #33 from Alexander <alm at sibmail dot ru> ---
build 4.9.x ok, only with workarounds in this conversation.