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-rw-r--r--third_party/rust/num-integer/build.rs13
1 files changed, 13 insertions, 0 deletions
diff --git a/third_party/rust/num-integer/build.rs b/third_party/rust/num-integer/build.rs
new file mode 100644
index 0000000000..37c985766a
--- /dev/null
+++ b/third_party/rust/num-integer/build.rs
@@ -0,0 +1,13 @@
+extern crate autocfg;
+
+use std::env;
+
+fn main() {
+ // If the "i128" feature is explicity requested, don't bother probing for it.
+ // It will still cause a build error if that was set improperly.
+ if env::var_os("CARGO_FEATURE_I128").is_some() || autocfg::new().probe_type("i128") {
+ autocfg::emit("has_i128");
+ }
+
+ autocfg::rerun_path("build.rs");
+}