PostgreSQL PostGIS yum install is broke.
Error: Package: gdal-libs-1.11.4-12.rhel7.x86_64 (pgdg96)
Requires: libdapserver.so.7()(64bit)
Error: Package: gdal-libs-1.11.4-12.rhel7.x86_64 (pgdg96)
Requires: libdap.so.17()(64bit)
Error: Package: gdal-libs-1.11.4-12.rhel7.x86_64 (pgdg96)
Requires: libarmadillo.so.8()(64bit)
Error: Package: gdal-libs-1.11.4-12.rhel7.x86_64 (pgdg96)
Requires: libogdi.so.3()(64bit)
Error: Package: gdal-libs-1.11.4-12.rhel7.x86_64 (pgdg96)
Requires: libCharLS.so.1()(64bit)
Error: Package: gdal-libs-1.11.4-12.rhel7.x86_64 (pgdg96)
Requires: libgta.so.0()(64bit)
Error: Package: postgis23_96-2.3.4-1.rhel7.x86_64 (pgdg96)
Requires: hdf5
Error: Package: gdal-libs-1.11.4-12.rhel7.x86_64 (pgdg96)
Requires: libnetcdf.so.7()(64bit)
Error: Package: gdal-libs-1.11.4-12.rhel7.x86_64 (pgdg96)
Requires: libfreexl.so.1()(64bit)
Error: Package: gdal-libs-1.11.4-12.rhel7.x86_64 (pgdg96)
Requires: libcfitsio.so.2()(64bit)
Error: Package: gdal-libs-1.11.4-12.rhel7.x86_64 (pgdg96)
Requires: libdapclient.so.6()(64bit)
Error: Package: gdal-libs-1.11.4-12.rhel7.x86_64 (pgdg96)
Requires: libopenjp2.so.7()(64bit)
Error: Package: gdal-libs-1.11.4-12.rhel7.x86_64 (pgdg96)
Requires: libhdf5.so.8()(64bit)
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest