1 files changed, 6 insertions, 0 deletions
diff --git a/embed.fnc b/embed.fnc
index a3746fe459..2ee9e07351 100644
--- a/embed.fnc
+++ b/embed.fnc
@@ -183,7 +183,13 @@ Ap	|int	|do_binmode	|NN PerlIO *fp|int iotype|int mode
 p	|void	|do_chop	|NN SV* asv|NN SV* sv
 Ap	|bool	|do_close	|NN GV* gv|bool not_implicit
 p	|bool	|do_eof		|NN GV* gv
+
+#ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
 pmb	|bool	|do_exec	|NN const char* cmd
+#else
+p	|bool	|do_exec	|NN const char* cmd
+#endif
+
 #if defined(WIN32) || defined(__SYMBIAN32__)
 Ap	|int	|do_aspawn	|NN SV* really|NN SV** mark|NN SV** sp
 Ap	|int	|do_spawn	|NN char* cmd