1 files changed, 2 insertions, 0 deletions
diff --git a/library/std/build.rs b/library/std/build.rs
index 0fb03c8e88a..d0b37940936 100644
--- a/library/std/build.rs
+++ b/library/std/build.rs
@@ -36,6 +36,8 @@ fn main() {
         || target.contains("nintendo-3ds")
         || target.contains("vita")
         || target.contains("nto")
+        // See src/bootstrap/synthetic_targets.rs
+        || env::var("RUSTC_BOOTSTRAP_SYNTHETIC_TARGET").is_ok()
     {
         // These platforms don't have any special requirements.
     } else {