x86_64 is used as a baseline: the "x86_64" entry, whatever status it has,
is transformed into "all", and then the other entries in ARCHITECTURES
either dropped or rearranged appropriately.
further changes (for both guile1 and guile2):
* move man page also to tools as it concerns the interpreter
* define debuginfo for guile and the other than main libraries
- note: defining multple debuginfo packages is not possible using the predefined shell scriptlet
* add/fix compat versions for libraries
