ext/fiddle/extconf.rb: define RUBY_LIBFFI_MODVERSION macro.
ext/fiddle/closure.c (USE_FFI_CLOSURE_ALLOC): define 0 or 1 with platform and libffi's version. [Bug #3371]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40219 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
ext/fiddle/extconf.rb: define RUBY_LIBFFI_MODVERSION macro.
ext/fiddle/closure.c (USE_FFI_CLOSURE_ALLOC): define 0 or 1
with platform and libffi's version. [Bug #3371]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40219 b2dd03c8-39d4-4d8f-98ff-823fe69b080e