Make improvements for Actually Portable Emacs

- Get SIGWINCH working again on the New Technology
- Correctly handle O_NOFOLLOW in open() on Windows
- Implement synthetic umask() functionality on Windows
- Do a better job managing file execute access on Windows
- Fill in `st_uid` and `st_gid` with username hash on Windows
- Munge UNICODE control pictures into control codes on Windows
- Do a better job ensuring Windows console settings are restored
- Introduce KPRINTF_LOG environment variable to log kprintf to a file

third_party/lua/ldo.c

@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define ldo_c
 #define LUA_CORE
+#include "third_party/lua/ldo.h"
 #include "libc/intrin/weaken.h"
 #include "libc/log/log.h"
 #include "libc/mem/gc.h"
@@ -35,7 +36,6 @@
 #include "libc/str/str.h"
 #include "third_party/lua/lapi.h"
 #include "third_party/lua/ldebug.h"
-#include "third_party/lua/ldo.h"
 #include "third_party/lua/lfunc.h"
 #include "third_party/lua/lgc.h"
 #include "third_party/lua/lmem.h"
@@ -154,7 +154,7 @@ l_noret luaD_throw (lua_State *L, int errcode) {
         g->panic(L);  /* call panic function (last chance to jump out) */
       }
       if (_weaken(__die)) _weaken(__die)();
-      _Exitr(41);
+      _Exit(41);
     }
   }
 }

third_party/nsync/futex.c

@@ -174,7 +174,7 @@ static int nsync_futex_wait_win32_ (atomic_int *w, int expect, char pshare, stru
 		deadline = timespec_max;
 	}
 
-	while (!(rc = _check_interrupts (0, 0))) {
+	while (!(rc = _check_interrupts (0))) {
 		now = timespec_real ();
 		if (timespec_cmp (now, deadline) > 0) {
 			rc = etimedout();