Make utils module part of the platform
diff --git a/library/Makefile b/library/Makefile
index 46dce4e..fd4544a 100644
--- a/library/Makefile
+++ b/library/Makefile
@@ -66,7 +66,7 @@
 		sha1.o		sha256.o	sha512.o	\
 		threading.o	timing.o	version.o	\
 		version_features.o		xtea.o	\
-		utils.o
+		platform_util.o
 
 OBJS_X509=	certs.o		pkcs11.o	x509.o		\
 		x509_create.o	x509_crl.o	x509_crt.o	\