This is analogous to DEBUG_DATABASE_SANITY, and is intended to help
debugging and to help users submit bug reports.
---
lib/notmuch-private.h | 1 +
lib/thread.cc | 6 ++++++
2 files changed, 7 insertions(+)
diff --git a/lib/notmuch-private.h b/lib/notmuch-private.h
index bd9d2747..02cc0e09 100644
--- a/lib/notmuch-private.h
+++ b/lib/notmuch-private.h
@@ -56,6 +56,7 @@ NOTMUCH_BEGIN_DECLS
#ifdef DEBUG
# define DEBUG_DATABASE_SANITY 1
+# define DEBUG_THREADING 1
# define DEBUG_QUERY 1
#endif
diff --git a/lib/thread.cc b/lib/thread.cc
index b599a97d..6d15c49b 100644
--- a/lib/thread.cc
+++ b/lib/thread.cc
@@ -24,6 +24,12 @@
#include <gmime/gmime.h>
#include <glib.h> /* GHashTable */
+#ifdef DEBUG_THREADING
+#define THREAD_DEBUG(format, ...) fprintf(stderr, format " (%s).\n", ##__VA_ARGS__, __location__)
+#else
+#define THREAD_DEBUG(format, ...) do {} while (0) /* ignored */
+#endif
+
#define EMPTY_STRING(s) ((s)[0] == '\0')
struct _notmuch_thread {
--
2.11.0
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