Compiling using clang-cl

[gvanem]

When building using clang-cl (the awesome MSVC cl replacement), I get this error:

In file included from json_object.c:26:
./linkhash.h(262,1) :  error: expected function body after function declarator
THIS_FUNCTION_IS_DEPRECATED(extern const void* lh_table_lookup(struct lh_table *t, const void *k));
^
./json_object.h(19,48) :  note: expanded from macro 'THIS_FUNCTION_IS_DEPRECATED'
#define THIS_FUNCTION_IS_DEPRECATED(func) func __deprecated
                                               ^

If I make json_object.h check for __clang__ after _MSC_VER, all seems okay:

--- a/json_object.h 2017-10-21 15:22:06
+++ b/json_object.h 2017-10-21 18:19:18
@@ -15,15 +15,15 @@

 #ifdef __GNUC__
 #define THIS_FUNCTION_IS_DEPRECATED(func) func __attribute__ ((deprecated))
-#elif defined(__clang__)
-#define THIS_FUNCTION_IS_DEPRECATED(func) func __deprecated
 #elif defined(_MSC_VER)
 #define THIS_FUNCTION_IS_DEPRECATED(func) __declspec(deprecated) func
+#elif defined(__clang__)
+#define THIS_FUNCTION_IS_DEPRECATED(func) func __deprecated
 #else
 #define THIS_FUNCTION_IS_DEPRECATED(func) func
 #endif