1 files changed, 9 insertions, 1 deletions

diff --git a/build.rs b/build.rs
index 2419b4eb..fee1a6a5 100644
--- a/build.rs
+++ b/build.rs
@@ -1,13 +1,21 @@
 use std::env;
+use version_check;
 
 fn main() {
     let target = env::var("TARGET").unwrap();
 
+    if version_check::Channel::read().unwrap().is_nightly() {
+        println!("cargo:rustc-cfg=rustc_is_nightly")
+    }
+
     if target.starts_with("thumbv6m") {
         println!("cargo:rustc-cfg=armv6m")
     }
 
-    if target.starts_with("thumbv7m") | target.starts_with("thumbv7em") {
+    if target.starts_with("thumbv7m")
+        | target.starts_with("thumbv7em")
+        | target.starts_with("thumbv8m")
+    {
         println!("cargo:rustc-cfg=armv7m")
     }