Make utils module part of the platform
diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index 24a2484..648b151 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -57,7 +57,7 @@
     version.c
     version_features.c
     xtea.c
-    utils.c
+    platform_util.c
 )
 
 set(src_x509