[ruby-core:117680] [Ruby master Bug#20451] Bad Ruby 3.1.5 backport causes fiddle to fail to build

Issue #20451 has been reported by Bo98 (Bo Anderson). ---------------------------------------- Bug #20451: Bad Ruby 3.1.5 backport causes fiddle to fail to build https://bugs.ruby-lang.org/issues/20451 * Author: Bo98 (Bo Anderson) * Status: Open * ruby -v: 3.1.5p252 * Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN ---------------------------------------- Ruby 3.1.5 shipped with the following backport: https://github.com/ruby/ruby/commit/84f2aabd272a54e79979795d2d405090704a1d07 However this backport directly breaks the build: ``` closure.c:279:60: error: use of undeclared identifier 'data' result = ffi_prep_closure(pcl, cif, callback, (void *)(data->self)); ^ ``` The original commit (https://github.com/ruby/fiddle/commit/2530496602) was updating the second branch to match the change in the first branch a couple lines up. However that change in the other branch does not exist in Ruby 3.1. The commit in question requires a previous commit of https://github.com/ruby/fiddle/commit/81a8a56239973ab7559229830a449d201955b…. The backport should either be reverted or an other commit should also be backported. Note that these commits were in a series of many commits made to fix an upstream issue https://github.com/ruby/fiddle/issues/102 so I cannot vouch whether or not the two commits are sufficient to fix the originally reported issue. -- https://bugs.ruby-lang.org/