16/58: gnu: libffi: Fix [cross-]build with gcc-14.

[guix-commits]

janneke pushed a commit to branch hurd-team
in repository guix.

commit 59f0acb9eeb06db0050064945f58cc68320dbd92
Author: Janneke Nieuwenhuizen <janneke@gnu.org>
AuthorDate: Mon Nov 18 14:38:16 2024 +0100

    gnu: libffi: Fix [cross-]build with gcc-14.
    
    * gnu/packages/libffi.scm (libffi)[arguments]: When building for the 64bit
    Hurd, or cross-building, add "CFLAGS" to #:configure-flags to disable 
breaking
    warning.
    
    Change-Id: I05bf3f460f3e292626de1894b7a3cf381cb07702
---
 gnu/packages/libffi.scm | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/libffi.scm b/gnu/packages/libffi.scm
index ba3fc6bc79..62be8f0c4a 100644
--- a/gnu/packages/libffi.scm
+++ b/gnu/packages/libffi.scm
@@ -8,6 +8,7 @@
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2019, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2020 John Doe <dftxbs3e@free.fr>
+;;; Copyright © 2024 Janneke Nieuwenhuizen <janneke@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -60,7 +61,12 @@
      `(;; Prevent the build system from passing -march and -mtune to the
        ;; compiler.  See "ax_cc_maxopt.m4" and "ax_gcc_archflag.m4".
        #:configure-flags '("--enable-portable-binary"
-                           "--without-gcc-arch")))
+                           "--without-gcc-arch"
+                           ,@(if (or (target-hurd64?) (%current-target-system))
+                                 (list (string-append
+                                        "CFLAGS=-g -O2"
+                                        " -Wno-implicit-function-declaration"))
+                                 '()))))
     (outputs '("out" "debug"))
     (synopsis "Foreign function call interface library")
     (description