https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85267
Bug ID: 85267 Summary: Untranslatable strings in verify_variant_match Product: gcc Version: 8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: roland.illig at gmx dot de Target Milestone: --- From tree.c: #define verify_variant_match(flag) \ do { \ if (flag (tv) != flag (t)) \ { \ error ("type variant differs by " #flag "."); \ debug_tree (tv); \ return false; \ } \ } while (false) Since GNU Gettext does not expand macro parameters, it extracts the following message for translation: msgid "type variant differs by " This message ID is useless because it never occurs in practice. Proper fix: Never use error() with macro parameters.