diff --git a/m4/ugly-stamp.m4 b/m4/ugly-stamp.m4
index 282447a1..eae0888f 100644
--- a/m4/ugly-stamp.m4
+++ b/m4/ugly-stamp.m4
@@ -4,11 +4,6 @@ AC_DEFUN([UGLY_FAKE_FUN],[
 7a7f11d6c077a99463a4fbefe1c09a20 moo-os.m4
 bf3d04c32399bca1bbe75282947e1041 moo-version.m4
 5e18022b42d6f056ef24b748181c848b ugly.m4
-f3434833becc2338bc7ce8ff0a925987 libtool.m4
-152941207b2a2348e1687f6d9430fdd4 ltoptions.m4
-bc2f6032c98896249eadb56177c7d357 ltsugar.m4
-8ad9271cd6f868874ffff4223e2ff0ee ltversion.m4
-13eeb5a2026d18ffe6428827fc7ab406 lt~obsolete.m4
 7e6e4832fed0fed1850ee168e65d9d4f moo-comps.m4
 ab00dc3cc5a6899ecd789fa5d5070abd moo-debug.m4
 d86d9c0fc3a7e74d0cad083d0b7fee15 moo-dirs.m4
diff --git a/moo.mprj b/moo.mprj
index 8b398072..f21ed7ab 100644
--- a/moo.mprj
+++ b/moo.mprj
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <medit-project version="2.0" type="C" name="moo">
- <active>debug</active>
+ <active>optimized</active>
  <configurations>
   <configuration name="debug">
    <build_dir>build/debug</build_dir>
diff --git a/moo/moolua/ldebug.c b/moo/moolua/ldebug.c
index 04586e90..1338a0f7 100644
--- a/moo/moolua/ldebug.c
+++ b/moo/moolua/ldebug.c
@@ -46,7 +46,7 @@ static int currentline (lua_State *L, CallInfo *ci) {
   if (pc < 0)
     return -1;  /* only active lua functions have current-line information */
   else
-    return getline(ci_func(ci)->l.p, pc);
+    return lua_getline_(ci_func(ci)->l.p, pc);
 }
 
 
diff --git a/moo/moolua/ldebug.h b/moo/moolua/ldebug.h
index ba28a972..2cf086a6 100644
--- a/moo/moolua/ldebug.h
+++ b/moo/moolua/ldebug.h
@@ -13,7 +13,7 @@
 
 #define pcRel(pc, p)	(cast(int, (pc) - (p)->code) - 1)
 
-#define getline(f,pc)	(((f)->lineinfo) ? (f)->lineinfo[pc] : 0)
+#define lua_getline_(f,pc)	(((f)->lineinfo) ? (f)->lineinfo[pc] : 0)
 
 #define resethookcount(L)	(L->hookcount = L->basehookcount)
 
diff --git a/moo/moolua/lvm.c b/moo/moolua/lvm.c
index ee3256ab..997fd459 100644
--- a/moo/moolua/lvm.c
+++ b/moo/moolua/lvm.c
@@ -68,10 +68,10 @@ static void traceexec (lua_State *L, const Instruction *pc) {
   if (mask & LUA_MASKLINE) {
     Proto *p = ci_func(L->ci)->l.p;
     int npc = pcRel(pc, p);
-    int newline = getline(p, npc);
+    int newline = lua_getline_(p, npc);
     /* call linehook when enter a new function, when jump back (loop),
        or when enter a new line */
-    if (npc == 0 || pc <= oldpc || newline != getline(p, pcRel(oldpc, p)))
+    if (npc == 0 || pc <= oldpc || newline != lua_getline_(p, pcRel(oldpc, p)))
       luaD_callhook(L, LUA_HOOKLINE, newline);
   }
 }