From 971f0e4e8fd27c6d30d2aeec226192532de2e99a Mon Sep 17 00:00:00 2001
From: Jason Conroy <jconroy@tscripta.net>
Date: Fri, 19 Sep 2025 18:20:39 +0000
Subject: [PATCH] gnu: ocaml-guile: Fix build with gcc@14.

* gnu/packages/ocaml.scm (ocaml-guile)[arguments]: Modify Dune
  configurator script to add CFLAG `-Wno-int-conversion`.

Change-Id: I9eab10fc7e10904e46346bfeb207eae3a58ca300
Signed-off-by: Julien Lepiller <julien@lepiller.eu>
---
 gnu/packages/ocaml.scm | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/ocaml.scm b/gnu/packages/ocaml.scm
index 205dddc57598bb0300fcfac9524d092e98e6667a..558e345cbd353c97c8ccf67c27d84211c75abca2 100644
--- a/gnu/packages/ocaml.scm
+++ b/gnu/packages/ocaml.scm
@@ -9548,7 +9548,15 @@ bibliography files in BibTeX format, a bibliography in HTML format.")
          "0yxdkrhrrbwvay5sn0p26rh3f11876k6kdharmpi4afxknml74ql"))))
     (build-system dune-build-system)
     (arguments
-     `(#:tests? #f)) ; no tests
+     `(#:tests? #f ;; no tests
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'patch-gcc-flags
+           (lambda _
+             (substitute* "config/discover.ml"
+               ;; Disable a strict default added in GCC 14.
+               (("libffi.P.cflags")
+                "[\"-Wno-int-conversion\"] @ libffi.P.cflags")))))))
     (propagated-inputs
      (list ocaml-sexplib
            ocaml-ctypes