PGDLLIMPORT-ify old_snapshot_threshold.

tglsfdc · tglsfdc · commit 14216649f3dc · 2016-04-21T14:33:34.000-04:00
Revert commit 7cb1db1, which represented a misunderstanding of the problem (if snapmgr.h weren't already included in bufmgr.h, things wouldn't compile anywhere). Instead install what I think is the real fix.
diff --git a/contrib/bloom/blscan.c b/contrib/bloom/blscan.c
@@ -19,7 +19,6 @@
 #include "storage/lmgr.h"
 #include "utils/memutils.h"
 #include "utils/rel.h"
-#include "utils/snapmgr.h"
 
 #include "bloom.h"
 
diff --git a/src/include/utils/snapmgr.h b/src/include/utils/snapmgr.h
@@ -20,7 +20,7 @@
 
 
 /* GUC variables */
-extern int	old_snapshot_threshold;
+extern PGDLLIMPORT int old_snapshot_threshold;
 
 
 extern Size SnapMgrShmemSize(void);
