Add jansson_config.h.win32

As the configure script cannot be run on Windows, give the users a
jansson_config.h that they can use directly.

src/jansson_config.h.win32

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2010 Petri Lehtinen <petri@digip.org>
+ *
+ * Jansson is free software; you can redistribute it and/or modify
+ * it under the terms of the MIT license. See LICENSE for details.
+ *
+ *
+ * This file specifies a part of the site-specific configuration for
+ * Jansson, namely those things that affect the public API in
+ * jansson.h.
+ *
+ * The configure script copies this file to jansson_config.h and
+ * replaces @var@ substitutions by values that fit your system. If you
+ * cannot run the configure script, you can do the value substitution
+ * by hand.
+ */
+
+#ifndef JANSSON_CONFIG_H
+#define JANSSON_CONFIG_H
+
+/* If your compiler supports the inline keyword in C, JSON_INLINE is
+   defined to `inline', otherwise empty. In C++, the inline is always
+   supported. */
+#ifdef __cplusplus
+#define JSON_INLINE inline
+#else
+#define JSON_INLINE 
+#endif
+
+/* If your compiler supports the `long long` type,
+   JSON_INTEGER_IS_LONG_LONG is defined to 1, otherwise to 0. */
+#define JSON_INTEGER_IS_LONG_LONG 1
+
+#endif