From 100fb6fec8a4a76a1c5a20757bc1b1c42ce04a79 Mon Sep 17 00:00:00 2001
From: Yifei Sun <ysun@hey.com>
Date: Mon, 1 Dec 2025 15:33:21 +0100
Subject: [PATCH] satysfi: fix build on darwin

---
 pkgs/by-name/sa/satysfi/package.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkgs/by-name/sa/satysfi/package.nix b/pkgs/by-name/sa/satysfi/package.nix
index 3d4d042c5e88..2e7de38ddd75 100644
--- a/pkgs/by-name/sa/satysfi/package.nix
+++ b/pkgs/by-name/sa/satysfi/package.nix
@@ -4,6 +4,7 @@
   ocaml-ng,
   ipaexfont,
   junicode,
+  libpng,
   lmodern,
   lmmath,
   which,
@@ -47,7 +48,7 @@ ocamlPackages.buildDunePackage {
   };
 
   preConfigure = ''
-    substituteInPlace src/frontend/main.ml --replace \
+    substituteInPlace src/frontend/main.ml --replace-fail \
     '/usr/local/share/satysfi"; "/usr/share/satysfi' \
     $out/share/satysfi
   '';
@@ -59,6 +60,7 @@ ocamlPackages.buildDunePackage {
 
   buildInputs = [
     camlpdf
+    libpng
     yojson-with-position
   ]
   ++ (with ocamlPackages; [