diff -uNr lua-5.2.4/src/loslib.c lua-5.2.4.mod/src/loslib.c
--- lua-5.2.4/src/loslib.c	2013-04-12 21:48:47.000000000 +0300
+++ lua-5.2.4.mod/src/loslib.c	2018-06-26 16:13:07.191167382 +0300
@@ -44,9 +44,9 @@
 */
 #if defined(LUA_USE_MKSTEMP)
 #include <unistd.h>
-#define LUA_TMPNAMBUFSIZE	32
+#define LUA_TMPNAMBUFSIZE	256
 #define lua_tmpnam(b,e) { \
-        strcpy(b, "/tmp/lua_XXXXXX"); \
+        strcpy(b, "@TERMUX_PREFIX@/tmp/lua_XXXXXX"); \
         e = mkstemp(b); \
         if (e != -1) close(e); \
         e = (e == -1); }