Add struct ctl_info for Apple

1 files changed, 5 insertions, 0 deletions

diff --git a/build.rs b/build.rs
index bbee2d28a1..e97be1a6ab 100644
--- a/build.rs
+++ b/build.rs
@@ -83,6 +83,11 @@ fn main() {
         println!("cargo:rustc-cfg=libc_non_exhaustive");
     }
 
+    // Rust >= 1.47 supports long array:
+    if rustc_minor_ver >= 47 || rustc_dep_of_std {
+        println!("cargo:rustc-cfg=libc_long_array");
+    }
+
     if rustc_minor_ver >= 51 || rustc_dep_of_std {
         println!("cargo:rustc-cfg=libc_ptr_addr_of");
     }