5 files changed, 13 insertions, 0 deletions

diff --git a/embed.fnc b/embed.fnc
index cf22c78d19..9effd6b9ff 100644
--- a/embed.fnc
+++ b/embed.fnc
@@ -735,6 +735,8 @@ Apd	|int	|mg_set		|NN SV* sv
 Ap	|I32	|mg_size	|NN SV* sv
 Ap	|void	|mini_mktime	|NN struct tm *ptm
 AMpd	|OP*	|op_lvalue	|NULLOK OP* o|I32 type
+: To be removed after 5.14 (see [perl #78908]):
+EXp	|OP*	|mod		|NULLOK OP* o|I32 type
 : Used in op.c and pp_sys.c
 p	|int	|mode_from_discipline|NULLOK const char* s|STRLEN len
 Ap	|const char*	|moreswitches	|NN const char* s
diff --git a/embed.h b/embed.h
index 09c7fb1775..441b6a51c8 100644
--- a/embed.h
+++ b/embed.h
@@ -821,6 +821,7 @@
 #define is_utf8_X_extend(a)	Perl_is_utf8_X_extend(aTHX_ a)
 #define is_utf8_X_non_hangul(a)	Perl_is_utf8_X_non_hangul(aTHX_ a)
 #define is_utf8_X_prepend(a)	Perl_is_utf8_X_prepend(aTHX_ a)
+#define mod(a,b)		Perl_mod(aTHX_ a,b)
 #define op_clear(a)		Perl_op_clear(aTHX_ a)
 #define qerror(a)		Perl_qerror(aTHX_ a)
 #define reg_named_buff(a,b,c,d)	Perl_reg_named_buff(aTHX_ a,b,c,d)
diff --git a/global.sym b/global.sym
index 2248d59a4a..007ed527d4 100644
--- a/global.sym
+++ b/global.sym
@@ -318,6 +318,7 @@ Perl_mg_magical
 Perl_mg_set
 Perl_mg_size
 Perl_mini_mktime
+Perl_mod
 Perl_moreswitches
 Perl_mro_get_from_name
 Perl_mro_get_linear_isa
diff --git a/op.c b/op.c
index 2da3db43d0..53641c7a8d 100644
--- a/op.c
+++ b/op.c
@@ -1784,6 +1784,14 @@ Perl_op_lvalue(pTHX_ OP *o, I32 type)
     return o;
 }
 
+/* Do not use this. It will be removed after 5.14. */
+OP *
+Perl_mod(pTHX_ OP *o, I32 type)
+{
+    return op_lvalue(o,type);
+}
+
+
 STATIC bool
 S_scalar_mod_type(const OP *o, I32 type)
 {
diff --git a/proto.h b/proto.h
index 6b3fe7739e..096e84f9cf 100644
--- a/proto.h
+++ b/proto.h
@@ -2247,6 +2247,7 @@ PERL_CALLCONV void	Perl_mini_mktime(pTHX_ struct tm *ptm)
 #define PERL_ARGS_ASSERT_MINI_MKTIME	\
 	assert(ptm)
 
+PERL_CALLCONV OP*	Perl_mod(pTHX_ OP* o, I32 type);
 PERL_CALLCONV int	Perl_mode_from_discipline(pTHX_ const char* s, STRLEN len);
 PERL_CALLCONV void *	Perl_more_bodies(pTHX_ const svtype sv_type, const size_t body_size, const size_t arena_size);
 PERL_CALLCONV const char*	Perl_moreswitches(pTHX_ const char* s)