X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=lib%2Fdatabase-private.h;h=41918d760fe82bed3c960f07f08f30159d3e4231;hp=5bb6e86c735fd80d53efcc801f4a4697cba5bd31;hb=e0a8dee8bcf0785325c07fff5a11e8ec494826db;hpb=9439b217c349478b3603d5368f534acb1cd23974

diff --git a/lib/database-private.h b/lib/database-private.h
index 5bb6e86c..41918d76 100644
--- a/lib/database-private.h
+++ b/lib/database-private.h
@@ -21,6 +21,15 @@
 #ifndef NOTMUCH_DATABASE_PRIVATE_H
 #define NOTMUCH_DATABASE_PRIVATE_H
 
+/* According to WG14/N1124, a C++ implementation won't provide us a
+ * macro like PRIx64 (which gives a printf format string for
+ * formatting a uint64_t as hexadecimal) unless we define
+ * __STDC_FORMAT_MACROS before including inttypes.h. That's annoying,
+ * but there it is.
+ */
+#define __STDC_FORMAT_MACROS
+#include <inttypes.h>
+
 #include "notmuch-private.h"
 
 #include <xapian.h>