[Bug bootstrap/104217] gcc-12-20220123 failure to build on Cygwin due to lack of secure_getenv

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104217

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Hmm:
https://sourceware.org/legacy-ml/cygwin-patches/2019-q1/msg00006.html