From 82de420bd2c9c3e15e6c31ca8c56762c80f82a43 Mon Sep 17 00:00:00 2001
From: Janneke Nieuwenhuizen <janneke@gnu.org>
Date: Sun, 5 Jan 2025 17:21:01 +0100
Subject: [PATCH] gnu: openmpi-4: Fix build with gcc-14.

* gnu/packages/mpi.scm (openmpi-4)[arguments]: Add CFLAGS to #:configure-flags
to relax gcc-14's strictness.

Change-Id: I4a19a473a729ce054d855ec2c4d6ea94dc94b849
---
 gnu/packages/mpi.scm | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/mpi.scm b/gnu/packages/mpi.scm
index 157bbfdecd..ffdfb5a731 100644
--- a/gnu/packages/mpi.scm
+++ b/gnu/packages/mpi.scm
@@ -9,6 +9,7 @@
 ;;; Copyright © 2018 Paul Garlick <pgarlick@tourbillion-technology.com>
 ;;; Copyright © 2019, 2021 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2024 Romain Garbage <romain.garbage@inria.fr>
+;;; Copyright © 2025 Janneke Nieuwenhuizen <janneke@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -234,7 +235,11 @@ (define-public openmpi-4
     (outputs '("out" "debug"))
     (arguments
      (list
-      #:configure-flags #~`("--enable-mpi-ext=affinity" ;cr doesn't work
+      #:configure-flags #~`(#$(string-append
+                               "CFLAGS=-g -O2"
+                               " -Wno-error=implicit-function-declaration"
+                               " -Wno-error=incompatible-pointer-types")
+                            "--enable-mpi-ext=affinity" ;cr doesn't work
                             "--with-sge"
                             "--disable-static"