For rh5: 
  $Builddir = /usr/src/redhat
For rh6:
  $Builddir = /root/rpmbuild
For sles:
  $Builddir = /usr/src/packages/

1. Download IO-Socket-SSL-1.77.tar.gz from http://search.cpan.org/CPAN/authors/id/S/SU/SULLR/IO-Socket-SSL-1.77.tar.gz
2. Copy IO-Socket-SSL-1.77.tar.gz to $Builddir/SOURCES/
3. Copy IO-Socket-SSL.spec to $Builddir/SPECS/
4. Run rpmbuild -bb $Builddir/SPECS/IO-Socket-SSL.spec
5. Then you can get the built rpm here:
   $Builddir/RPMS/noarch/perl-IO-Socket-SSL-1.77-1.noarch.rpm