diff --git a/src/backend/storage/file/fd.c b/src/backend/storage/file/fd.c
index 193164c84dce9e8ccb417b2a3a70b1f992ea9167..7552ba0b4028f0d084d7e53c4f1867c658661033 100644
--- a/src/backend/storage/file/fd.c
+++ b/src/backend/storage/file/fd.c
@@ -2276,7 +2276,7 @@ pre_sync_fname(char *fname, bool isdir)
 {
 	int			fd;
 
-	fd = open(fname, O_RDONLY | PG_BINARY);
+	fd = BasicOpenFile(fname, O_RDONLY | PG_BINARY, 0);
 
 	/*
 	 * Some OSs don't allow us to open directories at all (Windows returns
@@ -2335,7 +2335,7 @@ walkdir(char *path, void (*action) (char *fname, bool isdir))
 #ifndef WIN32
 		else if (S_ISLNK(fst.st_mode))
 #else
-		else if (pg_win32_is_junction(subpath))
+		else if (pgwin32_is_junction(subpath))
 #endif
 		{
 #if defined(HAVE_READLINK) || defined(WIN32)