update Lua 5.4.

1 files changed, 16 insertions, 16 deletions

diff --git a/src/3rdParty/lua/loslib.c b/src/3rdParty/lua/loslib.c
index 854dcf6..ad5a927 100644
--- a/src/3rdParty/lua/loslib.c
+++ b/src/3rdParty/lua/loslib.c
@@ -30,23 +30,14 @@
 */
 #if !defined(LUA_STRFTIMEOPTIONS)       /* { */
 
-/* options for ANSI C 89 (only 1-char options) */
-#define L_STRFTIMEC89           "aAbBcdHIjmMpSUwWxXyYZ%"
-
-/* options for ISO C 99 and POSIX */
-#define L_STRFTIMEC99 "aAbBcCdDeFgGhHIjmMnprRStTuUVwWxXyYzZ%" \
-    "||" "EcECExEXEyEY" "OdOeOHOIOmOMOSOuOUOVOwOWOy"  /* two-char options */
-
-/* options for Windows */
-#define L_STRFTIMEWIN "aAbBcdHIjmMpSUwWxXyYzZ%" \
-    "||" "#c#x#d#H#I#j#m#M#S#U#w#W#y#Y"  /* two-char options */
-
 #if defined(LUA_USE_WINDOWS)
-#define LUA_STRFTIMEOPTIONS     L_STRFTIMEWIN
-#elif defined(LUA_USE_C89)
-#define LUA_STRFTIMEOPTIONS     L_STRFTIMEC89
+#define LUA_STRFTIMEOPTIONS  "aAbBcdHIjmMpSUwWxXyYzZ%" \
+    "||" "#c#x#d#H#I#j#m#M#S#U#w#W#y#Y"  /* two-char options */
+#elif defined(LUA_USE_C89)  /* ANSI C 89 (only 1-char options) */
+#define LUA_STRFTIMEOPTIONS  "aAbBcdHIjmMpSUwWxXyYZ%"
 #else  /* C99 specification */
-#define LUA_STRFTIMEOPTIONS     L_STRFTIMEC99
+#define LUA_STRFTIMEOPTIONS  "aAbBcCdDeFgGhHIjmMnprRStTuUVwWxXyYzZ%" \
+    "||" "EcECExEXEyEY" "OdOeOHOIOmOMOSOuOUOVOwOWOy"  /* two-char options */
 #endif
 
 #endif                                  /* } */
@@ -138,12 +129,21 @@
 /* }================================================================== */
 
 
+#if !defined(l_system)
+#if defined(LUA_USE_IOS)
+/* Despite claiming to be ISO C, iOS does not implement 'system'. */
+#define l_system(cmd) ((cmd) == NULL ? 0 : -1)
+#else
+#define l_system(cmd)   system(cmd)  /* default definition */
+#endif
+#endif
+
 
 static int os_execute (lua_State *L) {
   const char *cmd = luaL_optstring(L, 1, NULL);
   int stat;
   errno = 0;
-  stat = system(cmd);
+  stat = l_system(cmd);
   if (cmd != NULL)
     return luaL_execresult(L, stat);
   else {