[Bug libffi/64645] liibffi fails to build on cygwin-32

[bernd.edlinger at hotmail dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64645

--- Comment #1 from Bernd Edlinger <bernd.edlinger at hotmail dot de> ---
Created attachment 34473
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34473&action=edit
possible fix

BTW: I used binutils-2.25 here.

This patch seems to work, and I can build libjava with it.

Excluding that section from sysv.S should be OK, because
CYGWIN32 and MINGW32 do not have eh frame infos AFAIK.