Fix compatibility with LibreSSL and OpenSSL < 1.1.

[tinc] / src / openssl / digest.h

diff --git a/src/openssl/digest.h b/src/openssl/digest.h
index d553977..420b11e 100644 (file)
--- a/src/openssl/digest.h
+++ b/src/openssl/digest.h
@@ -21,6 +21,7 @@
 */
 
 #include <openssl/evp.h>
+#include <openssl/hmac.h>
 
 struct digest {
        const EVP_MD *digest;