as the config file requested --
./getAutotools.sh
./getAutotools.sh -i /opt/xrootd
./bootstrap.sh
./configure -h
./configure --prefix=/opt/xrootd --enable-pwd --enable-posix --enable-mon --enable-apps --enable-doc --enable--gsi
configure: WARNING: perl says it was linked with multiple -arch flags (-arch i386 -arch ppc)! Will try to remove one
configure: WARNING: perl says it was compiled with multiple -arch flags (-arch i386 -arch ppc)! Will try to remove one
configure: error: Failed to remove extra -arch flags
LD: -arch x86_64 -arch i386
CC: -arch x86_64 -arch i386 -g -pipe -fno-common -DPERL_DARWIN -fno-strict-aliasing -I/usr/local/include -I/System/Library/Perl/5.10.0/darwin-thread-multi-2level/CORE
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OS X 10.6.4, Mac Pro x86_64
