From eae68dc97a6bfd6fefb611f1de8f20b134b0ac38 Mon Sep 17 00:00:00 2001
From: Peder Bergebakken Sundt <pbsds@hotmail.com>
Date: Wed, 8 May 2024 00:34:05 +0200
Subject: [PATCH] gnu-cim: fix build on LLVM

---
 pkgs/development/compilers/gnu-cim/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/compilers/gnu-cim/default.nix b/pkgs/development/compilers/gnu-cim/default.nix
index 54ba6cffff13..f689517196a1 100644
--- a/pkgs/development/compilers/gnu-cim/default.nix
+++ b/pkgs/development/compilers/gnu-cim/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
     done
   '';
 
-  CFLAGS = lib.optionalString stdenv.cc.isClang "-Wno-return-type";
+  env.CFLAGS = lib.optionalString stdenv.cc.isClang "-Wno-return-type -Wno-error=implicit-function-declaration -Wno-error=implicit-int";
 
   doCheck = true;