[Bug lto/69607] undefined reference to MAIN__._omp_fn.0 in atomic_capture-1.f with -flto

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69607

--- Comment #22 from vries at gcc dot gnu.org ---
updated patch with testcase from comment 17-19:
https://gcc.gnu.org/ml/gcc-patches/2016-02/msg01156.html .