@@ -578,22 +578,6 @@ impl Builder<'_> {
578578 rustflags. arg ( sysroot_str) ;
579579 }
580580
581- let use_new_symbol_mangling = match self . config . rust_new_symbol_mangling {
582- Some ( setting) => {
583- // If an explicit setting is given, use that
584- setting
585- }
586- None => {
587- if mode == Mode :: Std {
588- // The standard library defaults to the legacy scheme
589- false
590- } else {
591- // The compiler and tools default to the new scheme
592- true
593- }
594- }
595- } ;
596- 597581 // By default, windows-rs depends on a native library that doesn't get copied into the
598582 // sysroot. Passing this cfg enables raw-dylib support instead, which makes the native
599583 // library unnecessary. This can be removed when windows-rs enables raw-dylib
@@ -602,11 +586,7 @@ impl Builder<'_> {
602586 rustflags. arg ( "--cfg=windows_raw_dylib" ) ;
603587 }
604588
605- if use_new_symbol_mangling {
606- rustflags. arg ( "-Csymbol-mangling-version=v0" ) ;
607- } else {
608- rustflags. arg ( "-Csymbol-mangling-version=legacy" ) ;
609- }
589+ rustflags. arg ( "-Csymbol-mangling-version=v0" ) ;
610590
611591 // FIXME: the following components don't build with `-Zrandomize-layout` yet:
612592 // - rust-analyzer, due to the rowan crate
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