From d693e6d10c04f13ef18531b003d72d8c4e2b0c8e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=B1=B1=E4=B8=8B?= <git@yamashit.ax>
Date: Fri, 24 Apr 2026 07:32:52 +0900
Subject: [PATCH] kakasi: fix Darwin build by setting `-std=gnu17`

---
 pkgs/by-name/ka/kakasi/package.nix | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/pkgs/by-name/ka/kakasi/package.nix b/pkgs/by-name/ka/kakasi/package.nix
index 9d6d8d0b3244..f68d277afc56 100644
--- a/pkgs/by-name/ka/kakasi/package.nix
+++ b/pkgs/by-name/ka/kakasi/package.nix
@@ -27,9 +27,7 @@ stdenv.mkDerivation (finalAttrs: {
   nativeBuildInputs = [ autoreconfHook ];
   buildInputs = lib.optionals stdenv.hostPlatform.isDarwin [ libiconv ];
 
-  env = lib.optionalAttrs (!stdenv.cc.isClang) {
-    NIX_CFLAGS_COMPILE = "-std=gnu17";
-  };
+  configureFlags = [ "CFLAGS=-std=gnu17" ];
 
   postPatch = ''
     for a in tests/kakasi-* ; do