Add harfbuzz 1.4.6

[ebraminio]

I wanted to do this anyway but interestingly I just motivated more as pathway27/bookr-mod-vita#2

harfbuzz is a fundamental text rendering library used on various platforms, including and interestingly, PS4 also.

Lets see how this goes.

[ebraminio]

Well, this looks tricky :) Just reproduced the issue locally, will try to fix it soon.

[ebraminio]

Asked on harfbuzz mailing list

[ebraminio]

harfbuzz/harfbuzz#451 is related also it seems

[ebraminio]

A possible fix is here harfbuzz/harfbuzz#496

[ebraminio]

This is ready to merge also I guess.

[Ghabry]

freetype and harfbuzz have a circular dependency on each other.
To get harfbuzz support in freetype you have to:

1. Compile freetype without harfbuzz. Done 👍
2. Compile harfbuzz. Done 👍
3. Compile freetype with harfbuzz. Not yet 👎

[xyzz]

I think it would be enough to add harfbuzz detection to freetype VITABUILD, then add freetype after harfbuzz to travis_packages.sh like this:

b freetype
b harfbuzz
b freetype

[ebraminio]

Good news :) next version of harfbuzz won't need the patch I attached here as harfbuzz/harfbuzz#496

[ebraminio]

@xyzz: I guess you are right, have a look at also https://gist.github.com/roxlu/0108d45308a0434e27d4320396399153#file-cmakelists-txt

[Ghabry]

Yeah that would work, for the easyrpg deps we do it this way: https://github.com/EasyRPG/buildscripts/blob/master/linux-static/2_build_toolchain.sh#L136
Just use --without-harfbuzz and --with-harfbuzz

(install_lib is just a func that calls configure & make install)

[ebraminio]

So this seems doable but I am in doubt for the best and easiest solution so filed #37.