diff -r 3cfb4670d9e6 -r b85248a8aee2 libidav/crypto.c
--- a/libidav/crypto.c	Mon Oct 12 14:36:16 2015 +0200
+++ b/libidav/crypto.c	Mon Oct 12 14:36:54 2015 +0200
@@ -292,8 +292,8 @@
 
 void dav_get_hash(SHA256_CTX *sha256, char *buf) {
 #ifdef __sun
-    SHA256Final(buf, sha256);
+    SHA256Final((unsigned char*)buf, sha256);
 #else
-    SHA256_Final(buf, sha256);
+    SHA256_Final((unsigned char*)buf, sha256);
 #endif
 }