man FcDirCacheValid (Fonctions bibliothèques) - check directory cache timestamp
NAME
FcDirCacheValid - check directory cache timestamp
SYNOPSIS
#include <fontconfig.h> FcBool FcDirCacheValid (const FcChar8 *cache_file);
DESCRIPTION
Returns FcTrue if cache_file is no older than the directory containing it, else FcFalse.
VERSION
Fontconfig version 2.3.2