+extern void smtp_printf(const char *, BOOL, ...) PRINTF_FUNCTION(1,3);
+extern void smtp_vprintf(const char *, BOOL, va_list);
+
+#define string_sprintf(fmt, ...) \
+ string_sprintf_trc(fmt, US __FUNCTION__, __LINE__, __VA_ARGS__)
+extern uschar *string_sprintf_trc(const char *, const uschar *, unsigned, ...) ALMOST_PRINTF(1,4);
+
+#define store_get(size, tainted) \
+ store_get_3(size, tainted, __FUNCTION__, __LINE__)
+extern void *store_get_3(int, BOOL, const char *, int) ALLOC ALLOC_SIZE(1) WARN_UNUSED_RESULT;
+#define store_get_perm(size, tainted) \
+ store_get_perm_3(size, tainted, __FUNCTION__, __LINE__)
+extern void *store_get_perm_3(int, BOOL, const char *, int) ALLOC ALLOC_SIZE(1) WARN_UNUSED_RESULT;
+
+
+#if defined(LOCAL_SCAN) || defined(DLFUNC_IMPL)
+/* When compiling a local_scan() file we want to rename a published API, so that
+we can use an inlined implementation in the compiles of the main Exim files,
+with the original name. */
+
+# define string_copy(s) string_copy_function(s)
+# define string_copyn(s, n) string_copyn_function((s), (n))
+# define string_copy_taint(s, t) string_copy_taint_function((s), (t))
+# define child_open_exim(p) child_open_exim_function((p), US"from local_scan")
+# define child_open_exim2(p, s, a) child_open_exim2_function((p), (s), (a), US"from local_scan")
+# define child_open(a,e,u,i,o,l) child_open_function((a),(e),(u),(i),(o),(l),US"from local_scan")
+
+extern uschar * string_copy_function(const uschar *);
+extern uschar * string_copyn_function(const uschar *, int n);
+extern uschar * string_copy_taint_function(const uschar *, BOOL tainted);
+extern pid_t child_open_exim_function(int *, const uschar *);
+extern pid_t child_open_exim2_function(int *, uschar *, uschar *, const uschar *);
+extern pid_t child_open_function(uschar **, uschar **, int, int *, int *, BOOL, const uschar *);
+#endif