Rebuild Postgres for specific platform

# rpm -i postgres-[version number].src.rpm

# rpmbuild -bb --target i686 /usr/src/redhat/SPECS/postgresql.spec

If you get a problem with unpackaged files, use the following trick:

vi /usr/lib/rpm/macros

An modify some of the lines as follows:

#

# Script gets packaged file list on input and buildroot as first parameter.

# Returns list of unpackaged files, i.e. files in $RPM_BUILD_ROOT not packaged.

#

# Note: Disable (by commenting out) for legacy compatibility.

#%__check_files         /usr/lib/rpm/check-files %{buildroot}

#

# Should unpackaged files in a build root terminate a build?

#

# Note: The default value should be 0 for legacy compatibility.

%_unpackaged_files_terminate_build      0

#

# Should missing %doc files in the build directory terminate a build?

#

# Note: The default value should be 0 for legacy compatibility.

%_missing_doc_files_terminate_build     0