README.md should mention other dependencies about roboto HOT 11 CLOSED

Some other dependencies I found:
Cython for booleanOperations
scipy (used in fontbuild)

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Then there's the various dependencies of fontforge at https://github.com/fontforge/fontforge/blob/master/INSTALL-git.md#1-dependencies, assuming one wants to build it from source. (How buggy is the version shipping on Ubuntu?)

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The requirements for fontforge from the link above appear to be crazy, they pull too many pieces. We can probably do with less than everything.

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And then fontforge seems to pull down some of the requirements it is listing separately and build them itself again!

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Yea, I never actually tried building fontforge from source, it does seem messy. But the version in the Ubuntu repository actually is quite stable. In any case, I think we are close to removing the fontforge dependency entirely, so I'm thinking that it's not worth worrying about for now.

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Yet another dependency: the tests depend on HarfBuzz being available. layout.py depends on nototools.render, which needs HarfBuzz.

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Normally modules only list their direct dependencies...

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If we use git submodules, do we need to worry about our indirect dependencies? If not, it would seem to me that both this and issue #2 could be solved by introducing submodules. In that case I'd feel somewhat inclined to prioritize that task (assuming that it wouldn't take very long).

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Depends I guess. For AFDKO and FontForge, git submodules won't help. For other ones, I think you need to add deps of deps if the deps themselves don't have any setup to pull them down.

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I believe with nototools the submodules won't help pull in harfbuzz either.

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Assuming fixed by #8 and #21.

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