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From aacd2398e766500cb5d83c4d76b642fcf31d997a Mon Sep 17 00:00:00 2001
From: Sergey Poznyakoff <gray@gnu.org>
Date: Wed, 23 Jun 2021 10:26:50 +0300
Subject: [PATCH] Fix GDBM_File to compile with version 1.20 and earlier
* ext/GDBM_File/GDBM_File.xs (ITEM_NOT_FOUND): Define conditionally,
depending on the GDBM_VERSION_MAJOR and GDBM_VERSION_MINOR.
Don't assume GDBM_ITEM_NOT_FOUND is a define (it isn't since
gdbm commit d3e27957).
Upstream-Status: Backport
Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
---
ext/GDBM_File/GDBM_File.xs | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/ext/GDBM_File/GDBM_File.xs b/ext/GDBM_File/GDBM_File.xs
index cd0bb6f26ffa..494c2889ca89 100644
--- a/ext/GDBM_File/GDBM_File.xs
+++ b/ext/GDBM_File/GDBM_File.xs
@@ -145,14 +145,13 @@ output_datum(pTHX_ SV *arg, char *str, int size)
#define gdbm_setopt(db,optflag,optval,optlen) not_here("gdbm_setopt")
#endif
-#ifndef GDBM_ITEM_NOT_FOUND
-# define GDBM_ITEM_NOT_FOUND GDBM_NO_ERROR
-#endif
-
+#if GDBM_VERSION_MAJOR == 1 && GDBM_VERSION_MINOR < 13
/* Prior to 1.13, gdbm_fetch family functions set gdbm_errno to GDBM_NO_ERROR
if the requested key did not exist */
-#define ITEM_NOT_FOUND() \
- (gdbm_errno == GDBM_ITEM_NOT_FOUND || gdbm_errno == GDBM_NO_ERROR)
+# define ITEM_NOT_FOUND() (gdbm_errno == GDBM_NO_ERROR)
+#else
+# define ITEM_NOT_FOUND() (gdbm_errno == GDBM_ITEM_NOT_FOUND)
+#endif
#define CHECKDB(db) do { \
if (!db->dbp) { \
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