[bug#59177] [PATCH] python-protobuf: Use C++ implementation

[<Ontje.Luensdorf@dlr.de>]

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Hi Guix,

this patch configures python-protobuf to use the C++ protobuf
implementation. This additional dependency pays off with a 10x
performance improvement in some of my workloads.

Best regards,
Ontje

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From f2675cccf54d2bb1291ba1614ca44966730734e1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ontje=20L=C3=BCnsdorf?= <ontje.luensdorf@dlr.de>
Date: Thu, 10 Nov 2022 09:11:11 +0100
Subject: [PATCH] gnu: python-protobuf: Use C++ implementation.

* gnu/packages/protobuf.scm (python-protobuf): Use C++ implementation.
  [propagated-inputs]: Add protobuf.
  [arguments]: Add --cpp_implementation configure flags.
---
 gnu/packages/protobuf.scm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gnu/packages/protobuf.scm b/gnu/packages/protobuf.scm
index 1448691a42..9be35783fb 100644
--- a/gnu/packages/protobuf.scm
+++ b/gnu/packages/protobuf.scm
@@ -393,6 +393,9 @@ (define-public python-protobuf
         (base32
          "1ja2vpk9nklllmsirmil2s4l7ni9yfqvbvj47zz5xx17s1k1bhxd"))))
     (build-system python-build-system)
+    (propagated-inputs (list protobuf))
+    (arguments
+     `(#:configure-flags '("--cpp_implementation")))
     (home-page "https://github.com/google/protobuf")
     (synopsis "Protocol buffers is a data interchange format")
     (description
-- 
2.38.1