1 files changed, 6 insertions, 1 deletions
diff --git a/hcache.h b/hcache.h
index aab263bc..62eaa18b 100644
--- a/hcache.h
+++ b/hcache.h
@@ -33,9 +33,14 @@ HEADER *mutt_hcache_restore(const unsigned char *d, HEADER **oh);
 void *mutt_hcache_fetch(header_cache_t *h, const char *filename, size_t (*keylen)(const char *fn));
 void *mutt_hcache_fetch_raw (header_cache_t *h, const char *filename,
                              size_t (*keylen)(const char *fn));
+
+typedef enum {
+  M_GENERATE_UIDVALIDITY = 1 /* use gettimeofday() as value */
+} mutt_hcache_store_flags_t;
+
 /* uidvalidity is an IMAP-specific unsigned 32 bit number */
 int mutt_hcache_store(header_cache_t *h, const char *filename, HEADER *header,
-                      unsigned int uidvalidity, size_t (*keylen)(const char *fn));
+                      unsigned int uidvalidity, size_t (*keylen)(const char *fn), mutt_hcache_store_flags_t flags_t);
 int mutt_hcache_store_raw (header_cache_t *h, const char* filename, void* data,
                            size_t dlen, size_t(*keylen) (const char* fn));
 int mutt_hcache_delete(header_cache_t *h, const char *filename, size_t (*keylen)(const char *fn));