** Summary changed:
- Apt should optimize dependencies chosen to minimize disk space used
+ Apt should optimize dependencies chosen to minimize number of packages
installed
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How is the first available option determined? Is it done by sorting
package names alphabetically or some other criteria? Minimizing the
total number of packages needed to fulfill a dependency seems like a
good heuristic for apt to use to determine if it's solution integrates
well with the set of
A depends on B or C, so APT will choose B if it is available and C is
not installed. If C is installed, C is used. Packages rely on this
method. Furthermore, finding the smallest solution is a much harder
problem than finding the first solution, as it requires finding all
solutions.
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