[Bug c++/102640] [11/12 Regression] omp declare target to on C++ block scope extern declarations since r11-3699

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102640

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 51565
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51565&action=edit
gcc12-pr102640.patch

Untested fix.