From 0ec989ee3fde534d841d43a0527871a41aefaa5f Mon Sep 17 00:00:00 2001
From: Werner Koch <wk@gnupg.org>
Date: Thu, 6 Feb 2025 14:40:46 +0100
Subject: [PATCH] gpgscm: Fix for gcc < 4.5

* tests/gpgscm/scheme.c (MY_GCC_VERSION): New.
(type_to_string): Use gcc build in only when supported.
--

Note that we do not wnat to use the GPGRT macro to keep this file as
close to upstream as possible.
---
 tests/gpgscm/scheme.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/tests/gpgscm/scheme.c b/tests/gpgscm/scheme.c
index 003e85037..952cf63b0 100644
--- a/tests/gpgscm/scheme.c
+++ b/tests/gpgscm/scheme.c
@@ -44,6 +44,16 @@
 # endif
 #endif
 
+#if __GNUC__
+# define MY_GCC_VERSION (__GNUC__ * 10000 \
+                         + __GNUC_MINOR__ * 100 \
+                         + __GNUC_PATCHLEVEL__)
+#else
+# define MY_GCC_VERSION 0
+#endif
+
+
+
 /* Used for documentation purposes, to signal functions in 'interface' */
 #define INTERFACE
 
@@ -169,7 +179,7 @@ type_to_string (enum scheme_types typ)
      case T_SINK: return "sink";
      case T_FRAME: return "frame";
      }
-#ifdef __GNUC__
+#if MY_GCC_VERSION >= 40500  /* gcc >= 4.5.0 */
      __builtin_unreachable ();
 #else
      assert (! "not reached");