--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nspr/pr/include/prvrsion.h	Mon Jul 28 10:47:06 2014 +0200
@@ -0,0 +1,105 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+/* author: jstewart */
+
+#if defined(_PRVERSION_H)
+#else
+#define _PRVERSION_H
+
+#include "prtypes.h"
+
+PR_BEGIN_EXTERN_C
+
+/* All components participating in the PR version protocol must expose
+ * a structure and a function. The structure is defined below and named
+ * according to the naming conventions outlined further below.  The function
+ * is called libVersionPoint and returns a pointer to this structure.
+ */
+
+/* on NT, always pack the structure the same. */
+#ifdef _WIN32
+#pragma pack(push, 8)
+#endif
+
+typedef struct {
+    /*
+     * The first field defines which version of this structure is in use.
+     * At this time, only version 2 is specified. If this value is not 
+     * 2, you must read no further into the structure.
+     */
+    PRInt32    version; 
+  
+    /* for Version 2, this is the body format. */
+    PRInt64         buildTime;      /* 64 bits - usecs since midnight, 1/1/1970 */
+    char *          buildTimeString;/* a human readable version of the time */
+  
+    PRUint8   vMajor;               /* Major version of this component */
+    PRUint8   vMinor;               /* Minor version of this component */
+    PRUint8   vPatch;               /* Patch level of this component */
+  
+    PRBool          beta;           /* true if this is a beta component */
+    PRBool          debug;          /* true if this is a debug component */
+    PRBool          special;        /* true if this component is a special build */
+  
+    char *          filename;       /* The original filename */
+    char *          description;    /* description of this component */
+    char *          security;       /* level of security in this component */
+    char *          copyright;      /* The copyright for this file */
+    char *          comment;        /* free form field for misc usage */
+    char *          specialString;  /* the special variant for this build */
+} PRVersionDescription;
+
+/* on NT, restore the previous packing */
+#ifdef _WIN32
+#pragma pack(pop)
+#endif
+
+/*
+ * All components must define an entrypoint named libVersionPoint which
+ * is of type versionEntryPointType.
+ *
+ * For example, for a library named libfoo, we would have:
+ *
+ *   PRVersionDescription prVersionDescription_libfoo =
+ *   {
+ *       ...
+ *   };
+ *
+ *   PR_IMPLEMENT(const PRVersionDescription*) libVersionPoint(void)
+ *   {
+ *       return &prVersionDescription_libfoo;
+ *   }
+ */
+typedef const PRVersionDescription *(*versionEntryPointType)(void);
+
+/* 
+ * Where you declare your libVersionPoint, do it like this: 
+ * PR_IMPLEMENT(const PRVersionDescription *) libVersionPoint(void) {
+ *  fill it in...
+ * }
+ */
+
+/*
+ * NAMING CONVENTION FOR struct
+ *
+ * all components should also expose a static PRVersionDescription
+ * The name of the struct should be calculated as follows:
+ * Take the value of filename. (If filename is not specified, calculate
+ * a short, unique string.)  Convert all non-alphanumeric characters
+ * to '_'.  To this, prepend "PRVersionDescription_".  Thus for libfoo.so,
+ * the symbol name is "PRVersionDescription_libfoo_so".
+ * so the file should have
+ * PRVersionDescription PRVersionDescription_libfoo_so { fill it in };
+ * on NT, this file should be declspec export.
+ */
+
+PR_END_EXTERN_C
+
+#endif  /* defined(_PRVERSION_H) */
+
+/* prvrsion.h */
+