Merge branch 'pan/unicode-filenames/OTP-8887' into dev

* pan/unicode-filenames/OTP-8887: (27 commits)
  Test and correct filelib and filename
  Add documentation to erlang.xml and slight correction to unicode_usage.xml
  Add section about Unicode file names to stdlib users guide
  Correct bug in file_name_SUITE making it fail on Unix instead of Windows7
  Add documentation about raw filenames and Unicode file name translation mode
  Make filelib not crash on re codepoints beyond 255 in re when filename is raw
  Mend on_load_embedded testcase which did not handle windows links
  Correct testcase regarding windows versions supporting soft links.
  Teach filelib to use re in unicode mode when filenames are not raw
  Treat soft links on Windows correctly in file_name_SUITE
  Adapt new soft and hard link routines on Windos to Unicode
  Corrected testcases broken by unicode filenames
  Update preloaded prim_file
  Teach prim_file not to accept atoms and not to throw exceptions
  Adapt inet_drv to Visual Studio 2008
  Teach spawn_executable about Unicode
  Convert filenames read on MacOSX to canonical form
  Teach file to accept codepoints beyond 255.
  Add testcases
  Correct shell utilities to handle unicode and possibly binaries
  ...

1 files changed, 16 insertions, 0 deletions

diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h
index 0d15272aa8..27c5f99320 100644
--- a/erts/emulator/beam/sys.h
+++ b/erts/emulator/beam/sys.h
@@ -1253,6 +1253,22 @@ char* win32_errorstr(int);
 
 #endif
 
+/************************************************************************
+ * Find out the native filename encoding of the process (look at locale of 
+ * Unix processes and just do UTF16 on windows 
+ ************************************************************************/
+#define ERL_FILENAME_UNKNOWN 0
+#define ERL_FILENAME_LATIN1 1
+#define ERL_FILENAME_UTF8 2
+#define ERL_FILENAME_UTF8_MAC 3
+#define ERL_FILENAME_WIN_WCHAR 4
+
+int erts_get_native_filename_encoding(void);
+/* The set function is only to be used by erl_init! */
+void erts_set_user_requested_filename_encoding(int encoding); 
+int erts_get_user_requested_filename_encoding(void);
+
+void erts_init_sys_common_misc(void);
 
 #endif