Merge branch 'egil/file-info-opt-utc/OTP-7687'

* egil/file-info-opt-utc/OTP-7687: (39 commits)
  Remove time_t specific test in prim_file_SUITE
  Update prim_file.beam and prim_zip.beam
  Add types for posixtime_to_universaltime and the reverse
  Set BASEYEAR to 1902
  Set lower limit of years handled to 1601
  Emulate localtime, gmtime and mktime to enable negative time_t
  Document file:*_file_info/2
  Fix compiler warning in unix_efile.c
  Change name of bif universaltime_to_seconds/1
  Change options to prim_file:*_file_info/*
  Remove dead code
  Catch errors from prim_file:*_file_info
  Testcase for utc <-> seconds conversion
  Fix negative time in seconds_to_universaltime/1
  Remove OS taint from datetime conversion
  Add utc <-> seconds conversions bifs
  Let prim_file validate ctime in file_info
  Teach #file_info spec unix epochs for file times
  Add file_info_opt tests in prim_file_SUITE
  unix_efile: Zero is a valid number in utime
  ...

Conflicts:
	erts/emulator/beam/erl_time_sup.c
	erts/emulator/sys/win32/erl_win_sys.h
	erts/emulator/sys/win32/sys_time.c

1 files changed, 8 insertions, 1 deletions

diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h
index efc6dd2c6b..6b4b382caa 100644
--- a/erts/emulator/beam/sys.h
+++ b/erts/emulator/beam/sys.h
@@ -667,7 +667,14 @@ void get_localtime(int *year, int *month, int *day,
 		   int *hour, int *minute, int *second);
 void get_universaltime(int *year, int *month, int *day, 
 		       int *hour, int *minute, int *second);
-int univ_to_local(Sint *year, Sint *month, Sint *day, 
+int seconds_to_univ(Sint64 seconds, 
+		    Sint *year, Sint *month, Sint *day, 
+		    Sint *hour, Sint *minute, Sint *second);
+int univ_to_seconds(Sint year, Sint month, Sint day, 
+		    Sint hour, Sint minute, Sint second,
+		    Sint64* seconds);
+int univ_to_local(
+    Sint *year, Sint *month, Sint *day, 
 		  Sint *hour, Sint *minute, Sint *second);
 int local_to_univ(Sint *year, Sint *month, Sint *day, 
 		  Sint *hour, Sint *minute, Sint *second, int isdst);