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-rw-r--r--gcc/rust/lang.opt4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/rust/lang.opt b/gcc/rust/lang.opt
index e05dd72870a..537b93fa545 100644
--- a/gcc/rust/lang.opt
+++ b/gcc/rust/lang.opt
@@ -62,6 +62,10 @@ frust-crate=
Rust Joined RejectNegative
-frust-crate=<name> Set the crate name for the compilation
+frust-extern=
+Rust RejectNegative Joined
+-frust-extern= Specify where an external library is located
+
frust-debug
Rust Var(flag_rust_debug)
Dump various Rust front end internals.