
The build was broken by the recent libffi update
(53a04a2df0c0812fd983364184d519dc3356e7d2) because of this upstream
change:
ef76205647
I have changed the usage of FFI_SYSV as gentoo suggests:
https://wiki.gentoo.org/wiki/Libffi_3.3_porting_notes/FFI_SYSV
I'm not entirely sure if that is the right call here, but I haven't
noticed any regressions in my testing and its definitely better than a
broken build.
Upstream: https://gitlab.com/embeddable-common-lisp/ecl/issues/302