const char *in_encoding,
int *outsz);
#else
-#define reencode_string_len(a,b,c,d,e) NULL
+static inline char *reencode_string_len(const char *a, int b,
+ const char *c, const char *d, int *e)
+{ if (e) *e = 0; return NULL; }
#endif
static inline char *reencode_string(const char *in,