If the generated header files are included in the distribution, a build
outside of the source directory will use them. For machine-specific files,
this generates the wrong result (fcarch.h). Leaving them out of the
distribution forces them to be built.
Using a simple shell script that processes the public headers, two header
files are constructed that map public symbols to hidden internal aliases
avoiding the assocated PLT entry for referring to a public symbol.
A few mistakes in the FcPrivate/FcPublic annotations were also discovered
through this process
Add new helper program 'fc-case' to construct case folding tables from
standard Unicode CaseFolding.txt file
Re-implement case insensitive functions with Unicode aware versions
(including full case folding mappings)