Harfbuzz-ng merged into Pango master

[Behdad Esfahbod <behdad behdad org>]

Hi,

Just a heads up that I finally merged the harfbuzz-ng branch into pango 
master.  The code involves an entirely new OpenType Layout engine written from 
scratch (the shapers are not touched yet, but they will be moved into harfbuzz 
in the coming weeks).  While I fix the portability issues I know tonight, I'd 
also like to get some feedback/testing.  I plan to make a devel release 
tomorrow.  The harfbuzz code still lives in pango, so no new dependency.

Two things that can get testing:

  - Portability: Right now the code doesn't work on architectures not 
allowing unaligned access.  I'll fix that in a couple hours.  However, the new 
code is written in C++, and the Makefile.am hardcodes the compiler to make 
sure libstdc++ is not linked.  More importantly, the code uses lots of 
templates in non-obvious ways.  So, testing with non-gcc compilers is appreciated.

  - If you get past compiling, then testing with normal as well as exotic 
fonts is appreciated.  There should be a huge improvement in dealing with 
fonts having broken OpenType tables.  That is, if pango used to warn about the 
tables, it should work now.  Other than that, everything should work at least 
as good as it used to.  So, any regression is a bug.

Cheers,
behdad