Hi,
The postgis22_94-2.2.5-1.rhel7.x86_64 package in the PostgreSQL 9.4
CentOS 7 repository depends on SFCGAL. The latter package is not
available, making it impossible to install PostGIS:
Error: Package: postgis22_94-2.2.5-1.rhel7.x86_64 (pgdg94)
Requires: libSFCGAL.so.1()(64bit)
Error: Package: postgis22_94-2.2.5-1.rhel7.x86_64 (pgdg94)
Requires: SFCGAL
The package is present in the PostgreSQL 9.5 repository and installing
that one might be a workaround for anyone else affected by the problem.
Regards,
Laurentiu Nicola