[newlib-cygwin] cygwin: add explicit_bzero, elf.h changes to release

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=109a3a02a3855bae4be5ab6fe641366c7694b978 commit 109a3a02a3855bae4be5ab6fe641366c7694b978 Author: Yaakov Selkowitz Date: Wed Aug 2 04:38:01 2017 -0500 cygwin: add explicit_bzero, elf.h changes to release

[newlib-cygwin] Add elf.h to newlib

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=4aaec3cb88b333731ab844046d6f01145f81e9e1 commit 4aaec3cb88b333731ab844046d6f01145f81e9e1 Author: Yaakov Selkowitz Date: Wed Aug 2 01:15:31 2017 -0500 Add elf.h to newlib This is copied from musl (MIT

[newlib-cygwin] cygwin: Export explicit_bzero

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=2c83bc950fec04feb76a018a994598deb3787256 commit 2c83bc950fec04feb76a018a994598deb3787256 Author: Yaakov Selkowitz Date: Wed Aug 2 01:09:49 2017 -0500 cygwin: Export explicit_bzero This was added to