Mark some structures in the library interface with visibility=default attribute.

As of gcc 4.6, there are new warnings from -Wattributes along the lines of:

	warning: ‘_notmuch_messages’ declared with greater visibility
	than the type of its field ‘_notmuch_messages::iterator’
	[-Wattributes]

To squelch these, we decorate all such containing structs with
__attribute__((visibility("default"))). We take care to let only the
C++ compiler see this, (since the C compiler would otherwise warn
about ignored visibility attributes on types).

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/message.cc b/lib/message.cc
index a5a65e21..4b59fa91 100644
--- a/lib/message.cc
+++ b/lib/message.cc
@@ -25,7 +25,7 @@
 
 #include <gmime/gmime.h>
 
-struct _notmuch_message {
+struct visible _notmuch_message {
     notmuch_database_t *notmuch;
     Xapian::docid doc_id;
     int frozen;