When executing ./configure for Gnatstudio I receive the following error. I have searched for references related to this but can't anything associated with it. Gprconfig has been configured without incident.

checking that your gnat compiler works with a simple example... GNAT-TEMP-000001.TMP:108:11: undefined attribute "bindfile_option_substitution" GNAT-TEMP-000001.TMP:109:11: undefined attribute "bindfile_option_substitution" gprbuild: processing of configuration project "/tmp/GNAT-TEMP-000001.TMP" failed

Locating variable "bindfile_option_substitution." Don't know where this is located.