[Bug c++/115913] ICE with pragma GCC pop_options (‘global_options’ are modified in local context)

[sjames at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115913

--- Comment #2 from Sam James <sjames at gcc dot gnu.org> ---
Surrounding hb.hh does it, which makes sense given how much pragma fun it does:
https://github.com/harfbuzz/harfbuzz/blob/main/src/hb.hh.