* cygwin.din: Export btowc, trunc.

* include/cygwin/version.h: Reflect new exports.
* syscalls.cc (_stat): Rename to stat to avoid newlib wrapper.
* syscalls.cc (_fstat): Ditto.
* fhandler_console.cc (fhandler_console::close): Correct check for current tty.
Add debugging output when console is freed.
(set_console_state_for_spawn): Add debugging output.
* fhandler_tty.cc (fhandler_tty_slave::open): Don't decrement console open flag
when vforking.
* sigproc.cc (sigproc_terminate): Fix debugging output.
* spawn.cc (handle): Eliminate second argument.
(spawn_guts): Reflect elimination of argument change to handle.
* syscalls.cc (setsid): Add debugging output when console is freed.
* syscalls.cc (rename): Revert assumption that DELETE_ON_CLOSE works on Win9x.

winsup/cygwin/cygwin.din

@@ -73,8 +73,8 @@ _fcloseall_r
 fcloseall_r = _fcloseall_r
 _fscanf_r
 fscanf_r = _fscanf_r
-_fstat
-fstat = _fstat
+fstat
+_fstat = fstat
 _pipe
 _pthread_cleanup_pop
 _pthread_cleanup_push
@@ -82,9 +82,10 @@ _scanf_r
 scanf_r = _scanf_r
 _sscanf_r
 sscanf_r = _sscanf_r
-_stat
-stat = _stat
+stat
+_stat = stat
 _strtold
+trunc
 _vasprintf_r
 vasprintf_r = _vasprintf_r
 _vfscanf_r
@@ -181,6 +182,7 @@ bcopy
 _bcopy = bcopy
 bsearch
 _bsearch = bsearch
+btowc
 bzero
 _bzero = bzero
 cabs