You can install Postgres-XL in a variety of ways.
For convenience, the source tarball appears below.
For the latest code (obtainable via git), please visit the Git repository. Please note that the XL 9.5 branch is XL9_5_STABLE.
Postgres-XL 9.5 R1.4
Source Tarball
Postgres-XL Old Unsupported Releases
Source Tarball
RPM
postgres-xl92-9.2-34.1.src.rpm
postgres-xl92-9.2-34.1.x86_64.rpm
postgres-xl92-contrib-9.2-34.1.x86_64.rpm
postgres-xl92-debuginfo-9.2-34.1.x86_64.rpm
postgres-xl92-devel-9.2-34.1.x86_64.rpm
postgres-xl92-docs-9.2-34.1.x86_64.rpm
postgres-xl92-gtm-9.2-34.1.x86_64.rpm
postgres-xl92-libs-9.2-34.1.x86_64.rpm
postgres-xl92-plperl-9.2-34.1.x86_64.rpm
postgres-xl92-plpython-9.2-34.1.x86_64.rpm
postgres-xl92-pltcl-9.2-34.1.x86_64.rpm
postgres-xl92-server-9.2-34.1.x86_64.rpm