preproc.c: added deprecation warning for context-local label fallthrough

1 files changed, 7 insertions, 1 deletions

diff --git a/preproc.c b/preproc.c
index d75b58eb..885b3a98 100644
--- a/preproc.c
+++ b/preproc.c
@@ -1456,8 +1456,14 @@ static Context *get_ctx(const char *name, const char **namep,
     if (namep)
         *namep = name;
 
-    if (!all_contexts)
+    if (!all_contexts) {
         return ctx;
+	} else {
+		error(ERR_WARNING, "context-local label expansion"
+			  " to outer contexts will be deprecated"
+			  " starting in NASM 2.10, please update your"
+			  " code accordingly");
+	}
 
     do {
         /* Search for this smacro in found context */