Require unix-utils in path for windows make
diff --git a/ChangeLog b/ChangeLog
index 2791758..21cd6fd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -18,6 +18,9 @@
      "minimize" others (eg use stddef.h if only size_t is needed).
    * Change #include lines in test files to use double quotes instead of angle
      brackets for uniformity with the rest of the code.
+   * Building with 'make' on windows now requires Unix utilities in the PATH
+     as well as a Unix shell. This enables more features such as the 'check'
+     target.
 
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