Build a modified version of Lua 5.1.5 without tail calls

lua-5.1.5-notailcalls.diff

diff -ur lua-5.1.5/src/lparser.c lua-5.1.5-notailcalls/src/lparser.c
--- lua-5.1.5/src/lparser.c	2011-10-21 17:31:42.000000000 -0200
+++ lua-5.1.5-notailcalls/src/lparser.c	2013-09-27 17:44:56.000000000 -0300
@@ -1248,7 +1248,7 @@
     if (hasmultret(e.k)) {
       luaK_setmultret(fs, &e);
       if (e.k == VCALL && nret == 1) {  /* tail call? */
-        SET_OPCODE(getcode(fs,&e), OP_TAILCALL);
+        SET_OPCODE(getcode(fs,&e), OP_CALL);
         lua_assert(GETARG_A(getcode(fs,&e)) == fs->nactvar);
       }
       first = fs->nactvar;