fix warnings on Linux

CMakeLists.txt

@@ -31,7 +31,7 @@ endif()
 
 if (CMAKE_COMPILER_IS_GNUCXX OR APPLE)
   set(CMAKE_C_FLAGS "-std=c99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX")
-  set(CMAKE_C_FLAGS_DEBUG "-std=c99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX")
+  set(CMAKE_C_FLAGS_DEBUG "-std=c99 -O0 -g3 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX")
   set(CMAKE_C_FLAGS_RELEASE "-std=c99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX")
 endif()
 

include/llimits.h

@@ -14,6 +14,7 @@
 
 #include "lua.h"
 
+
 /*
 ** 'lu_mem' and 'l_mem' are unsigned/signed integers big enough to count
 ** the total memory used by Lua (in bytes). Usually, 'size_t' and

src/lopcodes.c

@@ -580,6 +580,8 @@ static const char* PrintRaviCode(char *buf, size_t n, Instruction i) {
     if (getCMode(o) != OpArgN)
       snprintf(buf + strlen(buf), n - strlen(buf), " C=%d", getCMode(o) == OpArgK ? (MYK(INDEXK(c))) : c);
     break;
+  default:
+    break;
   }
   return buf;
 }
@@ -618,4 +620,4 @@ const char* print_instruction(char *buf, size_t n, Instruction i) {
     break;
   }
   return buf;
-}
+}

src/lparser.c

@@ -95,7 +95,7 @@ static void print_expdesc(FILE *fp, FuncState *fs, const expdesc *e) {
             get_typename(e->ravi_type));
     break;
   case VKINT:
-    fprintf(fp, "{p=%p, k=VKINT, n=%ld, type=%s}", e, e->u.ival,
+    fprintf(fp, "{p=%p, k=VKINT, n=%lld, type=%s}", e, e->u.ival,
             get_typename(e->ravi_type));
     break;
   case VNONRELOC:
@@ -339,7 +339,6 @@ static void new_localvar (LexState *ls, TString *name, int tt) {
   FuncState *fs = ls->fs;
   Dyndata *dyd = ls->dyd;
   int reg = registerlocalvar(ls, name, tt);
-  int oldsize = dyd->actvar.size;
   checklimit(fs, dyd->actvar.n + 1 - fs->firstlocal,
                   MAXVARS, "local variables");
   luaM_growvector(ls->L, dyd->actvar.arr, dyd->actvar.n + 1,
@@ -402,13 +401,6 @@ int getlocvartype(FuncState *fs, int reg) {
   return v->ravi_type;
 }
 
-/* set type of a local var (RAVI) */
-static void setlocvartype(FuncState *fs, int i, int tt) {
-  if (i < 0 || (fs->firstlocal + i) >= fs->ls->dyd->actvar.n)
-    return;
-  getlocvar(fs, i)->ravi_type = tt;
-}
-
 /* set the starting code location (set to current instruction) 
  * for nvars new local variables; variable scope starts here 
  */
@@ -546,7 +538,6 @@ static void ravi_coercetype(LexState *ls, expdesc *v, int n)
   Instruction *pc = &getcode(ls->fs, v); /* Obtain the instruction for OP_CALL */
   lua_assert(GET_OPCODE(*pc) == OP_CALL);
   int a = GETARG_A(*pc); /* function return values will be placed from register pointed by A and upwards */
-  int nrets = GETARG_C(*pc) - 1; /* operand C contais number of return values expected */
   /* all return values that are going to be assigned to typed local vars must be converted to the correct type */
   int i;
   for (i = a + 1; i < a + n; i++) {

src/lvm.c

@@ -673,7 +673,7 @@ void stackDump(lua_State *L, const char *s) {
     else if (ttisfloat(p))
       printf("stack[%d] = float (%.6f)\n", i, fltvalue(p));
     else if (ttisinteger(p))
-      printf("stack[%d] = integer (%d)\n", i, ivalue(p));
+      printf("stack[%d] = integer (%lld)\n", i, ivalue(p));
     else if (ttislightuserdata(p))
       printf("stack[%d] = light user data\n", i);
     else if (ttisfulluserdata(p))