1 files changed, 12 insertions, 0 deletions
diff --git a/openssl/build.rs b/openssl/build.rs
index 612322fe..271fb662 100644
--- a/openssl/build.rs
+++ b/openssl/build.rs
@@ -41,4 +41,16 @@ fn main() {
             println!("cargo:rustc-cfg=ossl110g");
         }
     }
+
+    if let Ok(version) = env::var("DEP_OPENSSL_LIBRESSL_VERSION_NUMBER") {
+        let version = u64::from_str_radix(&version, 16).unwrap();
+
+        if version >= 0x2_06_01_00_0 {
+            println!("cargo:rustc-cfg=libressl261");
+        }
+
+        if version >= 0x2_07_00_00_0 {
+            println!("cargo:rustc-cfg=libressl270");
+        }
+    }
 }