Provided by: libfontconfig1-dev_2.13.1-2ubuntu3_amd64 
NAME
FcDirCacheRead - read or construct a directory cache
SYNOPSIS
#include <fontconfig/fontconfig.h>
FcCache * FcDirCacheRead (const FcChar8 *dir, FcBool force, FcConfig *config);
DESCRIPTION
This returns a cache for dir. If force is FcFalse, then an existing, valid cache file will be used.
Otherwise, a new cache will be created by scanning the directory and that returned.