Add ChangeLog entry for library/makefile changes
diff --git a/ChangeLog b/ChangeLog
index 275f198..aac8cf6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -9,6 +9,10 @@
Changes
* Support cmake build where Mbed TLS is a subproject. Fix
contributed independently by Matthieu Volat and Arne Schwabe.
+ * Allow configuring the prefix operator for the archiver tool when compiling
+ the library using the makefile. Found and fixed by Alex Hixon.
+ * Allow configuring the shared library extension by setting the DLEXT
+ variable when using the project makefile.
= mbed TLS 2.7.2 branch released 2018-03-16