Build Notes  for the perl-DBD-DB2 on RedHat6.x  p-Series
 
DB2 must be installed on the linux machine to build the DBD
install  rpm_build
export DB2_HOME=/db2client/dsdriver/odbc_cli_driver/aix32/clidriver
export DB2LIB=/db2client/dsdriver/odbc_cli_driver/aix32/clidriver/lib 
cd /usr/src/redhat/SPECS
Use the DBD-DB2Lite.spec supplied in this directory
cp DBD-DB2Lite.spec /usr/src/redhat/SPECS
rpmbuild -ba DBD-DB2.spec
This creates
/root/rpm/RPMS/ppc64/perl-DBD-DB2Lite-1-1.ppc64.rpm

Note on Redhat 6
vi /etc/ld.so.conf
add the following line
/db2client/dsdriver/odbc_cli_driver/aix32/clidriver/lib

The run ldconfig