diff --git a/lua/liolib.c b/lua/liolib.c
index 213e5e9..9fc44ab 100644
--- a/lua/liolib.c
+++ b/lua/liolib.c
@@ -285,7 +285,7 @@ static int io_popen (lua_State *L) {
 
 static int io_tmpfile (lua_State *L) {
   LStream *p = newfile(L);
-  p->f = tmpfile();
+  // p->f = tmpfile();
   return (p->f == NULL) ? luaL_fileresult(L, 0, NULL) : 1;
 }
 
diff --git a/lua/loslib.c b/lua/loslib.c
index de590c6..397494d 100644
--- a/lua/loslib.c
+++ b/lua/loslib.c
@@ -164,12 +164,12 @@ static int os_rename (lua_State *L) {
 
 
 static int os_tmpname (lua_State *L) {
-  char buff[LUA_TMPNAMBUFSIZE];
-  int err;
-  lua_tmpnam(buff, err);
-  if (err)
-    return luaL_error(L, "unable to generate a unique filename");
-  lua_pushstring(L, buff);
+  // char buff[LUA_TMPNAMBUFSIZE];
+  // int err;
+  // lua_tmpnam(buff, err);
+  // if (err)
+  //   return luaL_error(L, "unable to generate a unique filename");
+  // lua_pushstring(L, buff);
   return 1;
 }
 
@@ -181,7 +181,7 @@ static int os_getenv (lua_State *L) {
 
 
 static int os_clock (lua_State *L) {
-  lua_pushnumber(L, ((lua_Number)clock())/(lua_Number)CLOCKS_PER_SEC);
+  lua_pushnumber(L, ((lua_Number)0)/(lua_Number)CLOCKS_PER_SEC);
   return 1;
 }
 
diff --git a/lua/ltablib.c b/lua/ltablib.c
index c534957..6e9979f 100644
--- a/lua/ltablib.c
+++ b/lua/ltablib.c
@@ -256,7 +256,7 @@ typedef unsigned int IdxT;
 ** is to copy them to an array of a known type and use the array values.
 */
 static unsigned int l_randomizePivot (void) {
-  clock_t c = clock();
+  clock_t c = 0;
   time_t t = time(NULL);
   unsigned int buff[sof(c) + sof(t)];
   unsigned int i, rnd = 0;