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-rwxr-xr-xsrc/bootstrap/configure.py5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/bootstrap/configure.py b/src/bootstrap/configure.py
index b05a5cc8b81..1915986be28 100755
--- a/src/bootstrap/configure.py
+++ b/src/bootstrap/configure.py
@@ -340,6 +340,11 @@ o(
     "don't truncate options when printing them in this configure script",
 )
 v("set", None, "set arbitrary key/value pairs in TOML configuration")
+v(
+    "parallel-frontend-threads",
+    "rust.parallel-frontend-threads",
+    "number of parallel threads for rustc compilation",
+)
 
 
 def p(msg):