The scsl build document for winxp-ia64 speaks as mentioned below regarding the usage of unzip

Build Document :-
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>Zip and Unzip

> ZIP.EXE and UNZIP.EXE should be installed in C:\UTILS. If you have them installed elsewhere set the environment variable ALT_DEVTOOLS_PATH to their location. ZIP.EXE version should be 2.2 or later. UNZIP.EXE >version should be 5.12 or later. Information and the source code for ZIP.EXE and UNZIP.EXE is available on the info-zip web site.

when I downloaded and used the latest version of unzip ( 5.42 ). the sanity check of build reported error as given below :

>ERROR: The unzip file version must be 5.1[23456789].^M
> You are using the following unzip file version:^M
> The Unzip file was obtained from the following location:^M
> c:/java/tools/unzip.exe^M
> Please change your unzip file


Please modify the document correctly or fix the makefile to use the latest version too.