Log Message:
Update to 2.4.2:

 2.4.2

 Han-Wen Nienhuys:
       FcStrCanonFileName buggy for mingw. (bug 8311)
       More fixes for Win32 building (bug 8311)

 Kean Johnston:
       Don't use varargs CPP macros in fccache.c. (bug 8733)

 Keith Packard:
       Remove documentation for non-existant FcConfigNormalizeFontDir.
       Build fontconfig.def from header files when needed.
       Detect and use available random number generator (bug 8308)
       Add sparc64 architecture string.
       FcStrCanonAbsoluteFilename should be static.
       Use explicit platform/nameid order when scanning ttf files.
       Warn (and recover) from config file without <cachedir> elements.
       Avoid writing uninitialized structure pad bytes to cache files.
       Fix grep pattern in makealias to work on non-Gnu grep (bug 8368).
       Add FcFreeTypeQueryFace external API. Bug #7311.
       Segfault scanning non-font files. Disallow scan edit of user vars. (#8767)
       Add space between type and formal in devel man pages (bug 8935)

 Mike FABIAN:
       Do not clean cache files for different architectures

 Peter Breitenlohner:
       A VPATH build of fontconfig-2.4.1 fails for various reasons. Bug 8933.
       Use <literal> instead of <sgmltag> when documenting \ 
fonts.conf. Bug 8935.
       Fix fc-cat documentation (bug 8935).