From e8cb143c8337b122a6790f769ddb0a97c4baccd3 Mon Sep 17 00:00:00 2001
From: Andre Heinecke <aheinecke@intevation.de>
Date: Tue, 6 Sep 2016 16:30:24 +0200
Subject: [PATCH] core: Check for gpg version for loopback mode

* src/engine-gpg.c (build_argv): Check for version 2.1.0
before adding pinentry-mode.

--
This is a compatibility fix for older versions that don't support
this flag which would otherwise result in an invalid argument
error.
---
 src/engine-gpg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/engine-gpg.c b/src/engine-gpg.c
index 7036ee08..3f77ba87 100644
--- a/src/engine-gpg.c
+++ b/src/engine-gpg.c
@@ -866,7 +866,7 @@ build_argv (engine_gpg_t gpg, const char *pgmname)
       argc++;
     }
 
-  if (gpg->pinentry_mode)
+  if (gpg->pinentry_mode && have_gpg_version (gpg, "2.1.0"))
     {
       const char *s = NULL;
       switch (gpg->pinentry_mode)