请问怎样用Borland C++ Builder编译Jam
最近在网上下了一个maxent工具包原代码，可是需要通过Borland C++ Builder
加上STLPort 4.5.3 编译，在原代码的包中提供了jam的一个压缩包，其中有一些.c,.h文件和build.com！在相关文档中给出了编译maxent.exe的说明，如下：

This software can be built with the free C++ compiler released by Borland (current version is 5.5, which can be found
at:http://www.borland.com/bcppbuilder/freecompiler/). However, since the default STL shipped with BCC5.5
does not include support for hash_map, you need to install STLPort (http://www.stlport.com). It is important to
note that the latest version of STLPort fail to build on BCC5.5. You must use STLPort version 4.5.3 instead.
Building steps for Borland C++ 5.5:
1， Make sure you have installed STLPort for Borland C++ (setting STLPort 's directory in bcc32.cfg and
ilink32.cfg).
2， Set environment variable BCCROOT to your Borland C++ installation
3， Type jam at the top src directory to build.

可是，我现在能将BC++和STLPORT配置好，但不会配置Jam，请高手帮忙！急！
还有就是第3条是什么意思？

[解决办法]
用Borland C++ Builder6.0 吧 这个我试过是可以滴 5.5我没用过
[解决办法]
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