* m4/guix.m4 (GUIX_CHECK_GUILE_SQLITE3): New macro.
* configure.ac: Use it and define 'HAVE_GUILE_SQLITE3'.
* guix/self.scm (specification->package): Add "guile-sqlite3".
(compiled-guix)[guile-sqlite3]: New variable.
[dependencies]: Add it.
By mistake we were adding more dependencies than needed to the Scheme
derivations.
* guix/self.scm (compiled-guix)[dependencies]: Use
'package-transitive-propagated-inputs', not 'package-transitive-inputs'.
This introduces an intermediate derivation, thereby reducing the amount
of rebuild that needs to happen when "leaf" package modules are
modified.
* guix/self.scm (compiled-guix)[*core-package-modules*]: New variable.
[*package-modules*, *system-modules*, *cli-modules*]: Depend on it.
Add it to the directory union.
With substitution enabled we would end up downloading 10+ MiB of source
that's already available locally on disk.
* guix/self.scm (imported-files): Pass #:options to 'computed-file'.
Ludovic Courtès