Add a json_c_version.h header (included from json.h), and several macros and functions for retrieving the json-c version at compile-time and run-time.

Makefile.am

@@ -21,6 +21,7 @@ libjson_cinclude_HEADERS = \
 	debug.h \
 	json.h \
 	json_config.h \
+	json_c_version.h \
 	json_inttypes.h \
 	json_object.h \
 	json_object_iterator.h \
@@ -48,6 +49,7 @@ endif
 libjson_c_la_SOURCES = \
 	arraylist.c \
 	debug.c \
+	json_c_version.c \
 	json_object.c \
 	json_object_iterator.c \
 	json_tokener.c \

json.h

@@ -25,6 +25,7 @@ extern "C" {
 #include "json_object.h"
 #include "json_tokener.h"
 #include "json_object_iterator.h"
+#include "json_c_version.h"
 
 #ifdef __cplusplus
 }

json_c_version.c

@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2012 Eric Haszlakiewicz
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the MIT license. See COPYING for details.
+ */
+#include "config.h"
+
+#include "json_c_version.h"
+
+const char *json_c_version(void)
+{
+	return JSON_C_VERSION;
+}
+
+int json_c_version_num(void)
+{
+	return JSON_C_VERSION_NUM;
+}
+

json_c_version.h

@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2012 Eric Haszlakiewicz
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the MIT license. See COPYING for details.
+ */
+
+#ifndef _json_c_version_h_
+#define _json_c_version_h_
+
+#define JSON_C_MAJOR_VERSION 0
+#define JSON_C_MINOR_VERSION 10
+#define JSON_C_MICRO_VERSION 0
+#define JSON_C_VERSION_NUM ((JSON_C_MAJOR_VERSION << 16) | \
+                            (JSON_C_MINOR_VERSION << 8) | \
+                            JSON_C_MICRO_VERSION)
+#define JSON_C_VERSION "0.10"
+
+const char *json_c_version(void); /* Returns JSON_C_VERSION */
+int json_c_version_num(void);     /* Returns JSON_C_VERSION_NUM */
+
+#endif