4 files changed, 8 insertions, 3 deletions
diff --git a/embed.fnc b/embed.fnc
index 18065969da..4ece8db307 100644
--- a/embed.fnc
+++ b/embed.fnc
@@ -1596,7 +1596,7 @@ ApdT	|bool	|sync_locale
 ApxT	|void	|thread_locale_init
 ApxT	|void	|thread_locale_term
 ApdO	|void	|require_pv	|NN const char* pv
-AbpdM	|void	|pack_cat	|NN SV *cat|NN const char *pat|NN const char *patend \
+AbpdD	|void	|pack_cat	|NN SV *cat|NN const char *pat|NN const char *patend \
 				|NN SV **beglist|NN SV **endlist|NN SV ***next_in_list|U32 flags
 Apd	|void	|packlist	|NN SV *cat|NN const char *pat|NN const char *patend|NN SV **beglist|NN SV **endlist
 #if defined(PERL_USES_PL_PIDSTATUS) && defined(PERL_IN_UTIL_C)
diff --git a/embed.h b/embed.h
index 50706a7d3a..1447b2726f 100644
--- a/embed.h
+++ b/embed.h
@@ -410,6 +410,9 @@
 #define op_refcnt_unlock()	Perl_op_refcnt_unlock(aTHX)
 #define op_scope(a)		Perl_op_scope(aTHX_ a)
 #define op_sibling_splice	Perl_op_sibling_splice
+#ifndef NO_MATHOMS
+#define pack_cat(a,b,c,d,e,f,g)	Perl_pack_cat(aTHX_ a,b,c,d,e,f,g)
+#endif
 #define packlist(a,b,c,d,e)	Perl_packlist(aTHX_ a,b,c,d,e)
 #define pad_add_anon(a,b)	Perl_pad_add_anon(aTHX_ a,b)
 #define pad_add_name_pv(a,b,c,d)	Perl_pad_add_name_pv(aTHX_ a,b,c,d)
diff --git a/mathoms.c b/mathoms.c
index caed40171a..b490049d09 100644
--- a/mathoms.c
+++ b/mathoms.c
@@ -850,7 +850,7 @@ Perl_unpack_str(pTHX_ const char *pat, const char *patend, const char *s,
 
 The engine implementing C<pack()> Perl function.  Note: parameters
 C<next_in_list> and C<flags> are not used.  This call should not be used; use
-C<packlist> instead.
+C<L</packlist>> instead.
 
 =cut
 */
diff --git a/proto.h b/proto.h
index 1b030a999f..e156756096 100644
--- a/proto.h
+++ b/proto.h
@@ -2584,10 +2584,12 @@ PERL_CALLCONV void	Perl_optimize_optree(pTHX_ OP* o);
 #define PERL_ARGS_ASSERT_OPTIMIZE_OPTREE	\
 	assert(o)
 #ifndef NO_MATHOMS
-PERL_CALLCONV void	Perl_pack_cat(pTHX_ SV *cat, const char *pat, const char *patend, SV **beglist, SV **endlist, SV ***next_in_list, U32 flags);
+PERL_CALLCONV void	Perl_pack_cat(pTHX_ SV *cat, const char *pat, const char *patend, SV **beglist, SV **endlist, SV ***next_in_list, U32 flags)
+			__attribute__deprecated__;
 #define PERL_ARGS_ASSERT_PACK_CAT	\
 	assert(cat); assert(pat); assert(patend); assert(beglist); assert(endlist); assert(next_in_list)
 #endif
+
 PERL_CALLCONV void	Perl_package(pTHX_ OP* o);
 #define PERL_ARGS_ASSERT_PACKAGE	\
 	assert(o)