hadoop pipe compilation error
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I tried Hadoop Pipe (WordCount) for the first time and got the following errors during compilation:

    /usr/bin/ld: skipping incompatible /root/hadoop-0.20.205.0/c++/Linux-amd64-64/lib/libhadooppipes.a when searching for -lhadooppipes
    /usr/bin/ld: cannot find -lhadooppipes  
    /usr/bin/ld: skipping incompatible /root/hadoop-0.20.205.0/c++/Linux-amd64-64/lib/libhadooputils.a when searching for -lhadooputils
    /usr/bin/ld: cannot find -lhadooputils

I don't see .so libraries in my Hadoop directory. Does this mean that I need to get Hadoop source tar and then compile in some fashion? Any help would be deeply appreciated.  