Update harfbuzz port

[ebraminio]

HarfBuzz is moving away from providing cmake port used in emscripten to provide harfbuzz, however, guess instead forcing the project to use the meson port (which would be fantastic if possible), emscripten can just use harfbuzz's native amalgam/unity one source support used also in uharfbuzz, src/harfbuzz.cc of harfbuzz repository, to get the library compiled in emscripten, guess just needs to pass a HAVE_PTHREAD and HAVE_FREETYPE to CC when compiling src/harfbuzz.cc (one can see what cmake already passes however), I will also try this when could setup emscripten's development environment.

tldr: emcc src/harfbuzz.cc -DHAVE_PTHREAD -DHAVE_FREETYPE -fno-exceptions -fno-rtti -fvisibility-inlines-hidden can be used instead all the things happened on the harfbuzz port here.

[kripken]

Interesting, thanks for the info!

PR would be great if you or someone else has time, adding labels.

[sbc100]

I think we should support meson .. I think some people have been using it already. See #11066 for example

[stale]

This issue has been automatically marked as stale because there has been no activity in the past year. It will be closed automatically if no further activity occurs in the next 30 days. Feel free to re-open at any time if this issue is still relevant.

[sbc100]

Fixed in #14497