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+LS,
+
+In the following files you can find the comment below. We don't want to bother or burden the
+original authors with our problems. The cerf code is mostly used in MetaFun macros (by Alan
+Braslau). The c.h and cpp.h files are gone.
+
+    defs.h
+    cerf.h
+
+---------------------------------------------------------------------------------------------
+This file is patched by Mojca Miklavec and Hans Hagen for usage in LuaMetaTeX where we use
+only C and also want to compile with the Microsoft compiler. So, when updating this library
+one has to check for changes. Not that we expect many as this is a rather stable library.
+
+In the other files there are a few macros used that deal with the multiplication and addition
+of complex and real nmbers. Of course the original code is kept as-is.
+---------------------------------------------------------------------------------------------
+
+So, when updating the library you need to diff for the changes that are needed in order to
+compile the files with the Microsoft compiler.
+
+At some point I might patch the files so that we can intercept error messages in a way that
+permits recovery and also plugs them into our normal message handlers. Maybe I should also
+merge the code into just one file because it doesn't change.
+
+Hans