amxcore.obj : error LNK2019: unresolved external symbol __imp__CharLowerA@4 referenced in function "long __cdecl core_tolower(struct tagAMX *,long *)" (?core_tolower@@YAJPAUtagAMX@@PAJ@Z)
amxcore.obj : error LNK2019: unresolved external symbol __imp__CharUpperA@4 referenced in function "long __cdecl core_toupper(struct tagAMX *,long *)" (?core_toupper@@YAJPAUtagAMX@@PAJ@Z)
jitdebug/amxmodx_mm.dll : fatal error LNK1120: 2 unresolved externals

static cell AMX_NATIVE_CALL core_tolower(AMX *amx,cell *params)
{
  /*(void)amx;
  #if defined __WIN32__ || defined _WIN32 || defined WIN32
    return (cell)CharLower((LPTSTR)params[1]);
  #elif defined _Windows
    return (cell)AnsiLower((LPSTR)params[1]);
  #else
    return tolower((int)params[1]);
  #endif*/
   return 0;
}

static cell AMX_NATIVE_CALL core_toupper(AMX *amx,cell *params)
{
  /*(void)amx;
  #if defined __WIN32__ || defined _WIN32 || defined WIN32
    return (cell)CharUpper((LPTSTR)params[1]);
  #elif defined _Windows
    return (cell)AnsiUpper((LPSTR)params[1]);
  #else
    return toupper((int)params[1]);
  #endif*/
    return 0;
}