pgBufferUsage needs PGDLLIMPORT for pg_stat_statements on Windows.

diff --git a/src/include/executor/instrument.h b/src/include/executor/instrument.h
index 375e2d900b1e6d07711c8e445c6f37d5e75df201..e9af44a30503d021abac598fa4be6ed047c15cb9 100644 (file)
--- a/src/include/executor/instrument.h
+++ b/src/include/executor/instrument.h
@@ -53,7 +53,7 @@ typedef struct Instrumentation
    BufferUsage bufusage;       /* Total buffer usage */
 } Instrumentation;
 
-extern BufferUsage     pgBufferUsage;
+extern PGDLLIMPORT BufferUsage     pgBufferUsage;
 
 extern Instrumentation *InstrAlloc(int n, int instrument_options);
 extern void InstrStartNode(Instrumentation *instr);