From e2173b5f147e2f41154c63cec07136bea72c0bcf Mon Sep 17 00:00:00 2001
From: Ben Siraphob <bensiraphob@gmail.com>
Date: Sun, 21 Apr 2024 21:30:43 -0400
Subject: [PATCH] snow: fix build

---
 pkgs/tools/security/snow/default.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkgs/tools/security/snow/default.nix b/pkgs/tools/security/snow/default.nix
index dbea144cb1ba..5e7cb013a4ed 100644
--- a/pkgs/tools/security/snow/default.nix
+++ b/pkgs/tools/security/snow/default.nix
@@ -9,7 +9,9 @@ stdenv.mkDerivation rec {
     sha256 = "0r9q45y55z4i0askkxmxrx0jr1620ypd870vz0hx2a6n9skimdy0";
   };
 
-  makeFlags = [ "CFLAGS=-O2" ];
+  preBuild = ''
+    makeFlagsArray+=(CFLAGS="-O2 -std=c89")
+  '';
 
   installPhase = ''
     install -Dm755 snow -t $out/bin