Build Notes Need cc_r compiler installed on AIX build system. Download Digest-SHA-5.48.tar.gz from CPAN. Unwrap the tar file. (gunzip & tar -xvf ) Go to the subdirectory containing the Makefile and run "cpan2rpm ." This will eventually fail but it does produce a spec file. Modify the spec file and put it in /opt/freeware/src/packages/SPECS. Put the gz file in /opt/freeware/src/packages/SOURCES. Modify the spec file. (The modified file is in this directory.) Run "rpm -bb Digest-SHA.spec", which creates: /opt/freeware/src/packages/RPMS/ppc/perl-Digest-SHA-5.48-1.aix5.3.ppc.rpm