Issue #19887 has been updated by nagachika (Tomoyuki Chikanaga). Backport changed from 3.0: REQUIRED, 3.1: REQUIRED, 3.2: REQUIRED to 3.1: WONTFIX, 3.2: WONTFIX This is long standing bug and I don't think it's worth to backport. ---------------------------------------- Bug #19887: RUBYOPT doesn't work unless starting with `-` https://bugs.ruby-lang.org/issues/19887#change-109179 * Author: nobu (Nobuyoshi Nakada) * Status: Closed * Assignee: nobu (Nobuyoshi Nakada) * Backport: 3.1: WONTFIX, 3.2: WONTFIX ---------------------------------------- It was working till 1.8. ```sh-session $ for ruby in ruby{1.{8..9},2.{0..7},3.{0..3}}; do RUBYOPT=w $ruby -e 'puts "'$ruby': #{$VERBOSE}"'; done ruby1.8: true ruby1.9: false ruby2.0: false ruby2.1: false ruby2.2: false ruby2.3: false ruby2.4: false ruby2.5: false ruby2.6: false ruby2.7: false ruby3.0: false ruby3.1: false ruby3.2: false ruby3.3: false ``` -- https://bugs.ruby-lang.org/