mkpg不知道判别已安装包

What steps will reproduce the problem?
1. mpkg --install insight
2. 建立一个update.sh文件文件里面包含
   #!/bin/sh
   mpkg --install insight
   mpkg --install SDL
   mpkg --install zlib
   mpkg --install mpfr
   mpkg --install fftw
   mpkg --install libsqlite
   mpkg --install gmp
   mpkg --install gsl
   mpkg --install cmanual
   mpkg --install libusb
   mpkg --install gnupg
   mpkg --install resedit
   mpkg --install fltk
   mpkg --install fltk2
   mpkg --install wxWidgets
   mpkg --install bochs
   mpkg --install qemu
   mpkg --install tcltk
   mpkg --install tcltk86
   mpkg --install lua
   mpkg --install svn
   mpkg --install doxygen
   mpkg --install graphviz
   mpkg --install demo
3. ./update.sh

What is the expected output? What do you see instead?
  又重新开始下载安装insight

What version of the product are you using? On what operating system?
  2009.12.12 update version

Please provide any additional information below.

Original issue reported on code.google.com by tangrong...@gmail.com on 22 Feb 2010 at 4:07

adan830 / msys-cn

mkpg不知道判别已安装包 #12