portability: warn if provided snprintf.c is used

[secnet] / snprintf.c

diff --git a/snprintf.c b/snprintf.c
index 86f42e9..c9ab8fc 100644 (file)
--- a/snprintf.c
+++ b/snprintf.c
@@ -279,6 +279,8 @@
  */
 
 
+#warning Platform has no snprintf?! Please check included snprintf.c for sanity!
+
 \f
 /* ============================================= */
 /* NO USER SERVICABLE PARTS FOLLOWING THIS POINT */