Add Gambit source files to makefiles
This change adds support files for Gambit to all relevant makefiles. For those of us who install Geiser from a repository that builds the Geiser sources (like Guix), the Gambit files do not get installed resulting in the following error when the gambit
implementation is selected in run-geiser
:
Cannot open load file: No such file or directory, geiser-gambit
(See #286 (comment 231573176) for another instance of a user experiencing this).
Once this is merged, it'd be great if another version could be shipped so that we can update the package in Guix to fix Geiser for Gambit users.
Thanks a lot!