erts: Change erlang:open_port spawn to handle unicode

Previously only 'spawn_executable' handled unicode input.
Also change 'cd' option to always handle unicode.
Update open_port documentation and tests

1 files changed, 6 insertions, 0 deletions

diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h
index 26ed5f82c1..f7e4c81181 100755
--- a/erts/emulator/beam/global.h
+++ b/erts/emulator/beam/global.h
@@ -788,6 +788,12 @@ char *erts_convert_filename_to_native(Eterm name, char *statbuf,
 				      ErtsAlcType_t alloc_type, 
 				      int allow_empty, int allow_atom,
 				      Sint *used /* out */);
+char *erts_convert_filename_to_encoding(Eterm name, char *statbuf,
+					size_t statbuf_size,
+					ErtsAlcType_t alloc_type,
+					int allow_empty, int allow_atom,
+					int encoding,
+					Sint *used /* out */);
 Eterm erts_convert_native_to_filename(Process *p, byte *bytes);
 Eterm erts_utf8_to_list(Process *p, Uint num, byte *bytes, Uint sz, Uint left,
 			Uint *num_built, Uint *num_eaten, Eterm tail);