reviewed by: plam & keithp

reviewed by: plam & keithp

    V. Vindenes).

    existence of appropriate sections. Fix fc-cache to unlink stale cache
    files and save directory caches that lack relevant sections.

    that it is valid (reported by Matthias Clasen).

    available.
reviewed by: plam

    using info from OrigFile, not NewFile.

    (thanks Matthias Clasen).

    write an empty cache file. (thanks Lubos Lunak)

    James Cloos for finding and diagnosing this bug!

    save pain to others later.

    fonts.cache-1 files (e.g. for grepping and validation of the mmap
    codepath), as per James Cloos' request.
Remove done 'TODO' comment.
Updates for development release 2.3.90.

    fc-cache once per cached architecture; add some documentation to the
    FcCache structure.
Make fc-cache write out fonts.cache-2 files for directories with no fonts
    (i.e. only subdirectories).

- Cast sizeof to int, to shut up signedness warnings in comparison.
- Add consts where appropriate.
reviewed by: Patrick Lam <plam@mit.edu>

    returning bogus (i.e. duplicate) FcObjectPtr values. Now use negative
    values for dynamic object strings and positive values for built-in and
    FcNameRegisterObjectType strings. Thanks to Matthias Clasen for
    pinpointing this bus!

    that aren't hardcoded into fontconfig, but generated by fontconfig
    clients: keep another array of user-defined objects (indexed after the
    built-in objects).
Fix compilation warning (uninitialized variable).
Add comment.

    of said binding prevented programs from using FcPatterns through Xft.

    uninitialized variables; ensure progress on FcCacheSkipToArch.

    data format. Also match subdirectories when consuming cache
    information. Also check dates for global cache: a dir is out of date if
    it is newer than the global cache; scan it manually if that's the case.

    of unused variables.

    FcObjectPtrU).

Save subdirectory names in cache files to save time. This completely
    restores the original fontconfig API, BTW. Note that directories
    without fonts don't get a cache file; but then how many files would it
    have in that directory...

    *Serialize no longer mutates original FcPatterns, it creates a new copy
    in the supplied buffer. Fix thinkos in global cache freeing and in
    FcCacheSkipToArch.

The global cache now uses the same mmap-based cache infrastructure as the
    per-directory caches. Furthermore, the global cache is automatically
    updated (if possible) whenever fontconfig is used. Rip out remnants of
    the old cache infrastructure.

    files. Fix bugs in FcCacheBankToIndex.

    'object' table (strings pointed to by FcPatternElt->object and used as
    keys) and loading of object table from cache file if more strings are
    present in cache file than in current version of fontconfig. Hash the
    object table in memory.

    probably all right to use the global cache as it was previously and
    just store filenames and font info, as long as no mmap cache exists in
    the directory. Of course, if an mmap cache exists, use that instead.
If a directory cache does not exist or is invalid, load the fonts for just
    that directory using the old codepath.
Fix premature free of the FcPatterns belonging to the FcFontSet which we
    create from the mmapped files.