Index: /trunk/FACT++/erfa/src/erfaextra.h
===================================================================
--- /trunk/FACT++/erfa/src/erfaextra.h	(revision 18922)
+++ /trunk/FACT++/erfa/src/erfaextra.h	(revision 18922)
@@ -0,0 +1,59 @@
+/*
+** Copyright (C) 2016-2017, NumFOCUS Foundation. 
+**
+** Licensed under a 3-clause BSD style license - see LICENSE
+**
+** This file is NOT derived from SOFA sources
+*/
+
+
+#ifndef _ERFA_EXTRA_H
+#define _ERFA_EXTRA_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* 
+** Returns the package version
+** as defined in configure.ac
+** in string format
+*/
+const char* eraVersion();
+
+/* 
+** Returns the package major version
+** as defined in configure.ac
+** as integer
+*/
+int eraVersionMajor();
+
+/* 
+** Returns the package minor version
+** as defined in configure.ac
+** as integer
+*/
+int eraVersionMinor();
+
+/* 
+** Returns the package micro version
+** as defined in configure.ac
+** as integer
+*/
+int eraVersionMicro();
+
+/* 
+** Returns the orresponding SOFA version
+** as defined in configure.ac
+** in string format
+*/
+const char* eraSofaVersion();
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _ERFA_EXTRA_H */
+