https://bugs.gentoo.org/878395
https://bugs.gentoo.org/959264

From cdd8b55975e447840ce76f3a241be88fec7585b3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Klaus=20K=C3=A4mpf?= <kkaempf@gmail.com>
Date: Sun, 3 Nov 2024 17:07:29 +0100
Subject: [PATCH] support SWIG 4.2 and later
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otherwise building sigrok fails with
bindings/swig/enums.i:1: Error: Unknown directive '%attribute'.

Also indicate that bindings/swig/enums.i is a generated file.

Signed-off-by: Klaus Kämpf <kkaempf@gmail.com>
---
 bindings/cxx/enums.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/bindings/cxx/enums.py b/bindings/cxx/enums.py
index 3711334e7..388faf225 100644
--- a/bindings/cxx/enums.py
+++ b/bindings/cxx/enums.py
@@ -73,9 +73,11 @@
 code = open(os.path.join(outdirname, 'cxx/enums.cpp'), 'w')
 swig = open(os.path.join(outdirname, 'swig/enums.i'), 'w')
 
-for file in (header, code):
+for file in (header, code, swig):
     print("/* Generated file - edit enums.py instead! */", file=file)
 
+print('%include "attribute.i"', file=swig)
+
 print("namespace sigrok {", file=header)
 
 # Template for beginning of class declaration and public members.