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-rw-r--r--src/backend/port/BSD44_derived/dl.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/backend/port/BSD44_derived/dl.c b/src/backend/port/BSD44_derived/dl.c
index 394fb8a2e0a..73e9e48dbcf 100644
--- a/src/backend/port/BSD44_derived/dl.c
+++ b/src/backend/port/BSD44_derived/dl.c
@@ -38,6 +38,7 @@ static char sccsid[] = "@(#)dl.c 5.4 (Berkeley) 2/23/91";
#include <sys/types.h>
#include <nlist.h>
#include <link.h>
+#include <dlfcn.h>
#include <stdio.h>
#include <stdlib.h>