1 files changed, 8 insertions, 0 deletions
diff --git a/vendor/num-rational/build.rs b/vendor/num-rational/build.rs
new file mode 100644
index 0000000..df5e310
--- /dev/null
+++ b/vendor/num-rational/build.rs
@@ -0,0 +1,8 @@
+fn main() {
+    let ac = autocfg::new();
+    if ac.probe_expression("format!(\"{:e}\", 0_isize)") {
+        println!("cargo:rustc-cfg=has_int_exp_fmt");
+    }
+
+    autocfg::rerun_path("build.rs");
+}