Lets hope this is not true anymore

My MingW build does not complain.
Read font family and size from command line
Simplify
There is nothing to include in $(top_srcdir)/auto
No need for full path here
Auto makes no sense for --enable-custom-reader
Remove builder-cache stuff

It is 2014 already. Whatever memory saving it does is unlikely to be
relevant now.
Drop GMetaDOM support

This library does not seem to be maintained, besides it is quite some
code for little gain.
Update
Simplify
C++-ify a bit
Add EPS support to mml-view
Don’t abuse UChar8
We can use Char32 here

Using Char16 looks like a micro optimisation.
Simplify character typedefs
We can do without GLib dependency here
Char and Char8 are always the same now
Fold Char.hh into String.hh
Remove commented out code
Simplify