1 files changed, 12 insertions, 0 deletions
diff --git a/proto.h b/proto.h
index 186bf40fbe..69a685277a 100644
--- a/proto.h
+++ b/proto.h
@@ -5764,6 +5764,18 @@ STATIC char*	S_swallow_bom(pTHX_ U8 *s)
 #define PERL_ARGS_ASSERT_SWALLOW_BOM	\
 	assert(s)
 
+#ifndef PERL_NO_UTF16_FILTER
+STATIC I32	S_utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen)
+			__attribute__nonnull__(pTHX_2);
+#define PERL_ARGS_ASSERT_UTF16_TEXTFILTER	\
+	assert(sv)
+
+STATIC I32	S_utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen)
+			__attribute__nonnull__(pTHX_2);
+#define PERL_ARGS_ASSERT_UTF16REV_TEXTFILTER	\
+	assert(sv)
+
+#endif
 STATIC void	S_checkcomma(pTHX_ const char *s, const char *name, const char *what)
 			__attribute__nonnull__(pTHX_1)
 			__attribute__nonnull__(pTHX_2)