The error is this: In file included from imap.c:28:0: ../mx.h:73:56: error: unknown type name ‘header_cache_t’ make[2]: *** [imap.o] Error 1 The offender commit was: commit cc497cf32588bb080fe39dfb7a37965e92f3c01b Author: Karel Zak <kzak(a)redhat.com&gt; Date: Wed Dec 14 14:07:58 2011 +0100 notmuch: consolidate msg sync code - add mh_sync_mailbox_message() to sync just one message - add msg->commited_path to save info about the final message path (will be used keep notmuch DB up to date) Signed-off-by: Karel Zak <kzak(a)redhat.com&gt; The fix consist in including hcache.h when hchace is enabled. Signed-off-by: Víctor Manuel Jáquez Leal <vjaquez(a)igalia.com&gt; --- mx.h | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/mx.h b/mx.h index c59de77..0dd7e6c 100644 --- a/mx.h +++ b/mx.h @@ -70,6 +70,7 @@ void maildir_parse_flags (HEADER * h, const char *path); void maildir_update_flags (CONTEXT *ctx, HEADER *o, HEADER *n); #if USE_HCACHE +#include <hcache.h> int mh_sync_mailbox_message (CONTEXT * ctx, int msgno, header_cache_t *hc); #else int mh_sync_mailbox_message (CONTEXT * ctx, int msgno); -- 1.7.9