From 78ffe122ce4d29464775e4979392edef8c906c6b Mon Sep 17 00:00:00 2001
From: Randy Eckenrode <randy@largeandhighquality.com>
Date: Tue, 15 Apr 2025 18:13:49 -0400
Subject: [PATCH] python3Packages.py3exiv2: fix build on Darwin
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The package’s `setup.py` assumes Boost is in `/usr/local/lib`, which is
incorrect in nixpkgs.
---
 pkgs/development/python-modules/py3exiv2/default.nix | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/py3exiv2/default.nix b/pkgs/development/python-modules/py3exiv2/default.nix
index 1cf6162cdb38b..c01eaaf57fead 100644
--- a/pkgs/development/python-modules/py3exiv2/default.nix
+++ b/pkgs/development/python-modules/py3exiv2/default.nix
@@ -20,6 +20,12 @@ buildPythonPackage rec {
     hash = "sha256-crI+X3YMRzPPmpGNsI2U+9bZgwcR0qTowJuPNFY/Ooo=";
   };
 
+  # py3exiv2 only checks in `/usr/local/lib` for Boost, which is obviously wrong in nixpkgs.
+  postPatch = lib.optionalString stdenv.hostPlatform.isDarwin ''
+    substituteInPlace setup.py \
+      --replace-fail /usr/local/lib/ ${lib.escapeShellArg (lib.getLib boost)}/lib/
+  '';
+
   buildInputs = [
     boost
     exiv2
@@ -34,7 +40,6 @@ buildPythonPackage rec {
   doCheck = false;
 
   meta = with lib; {
-    broken = stdenv.hostPlatform.isDarwin;
     description = "Python binding to the library exiv2";
     homepage = "https://launchpad.net/py3exiv2";
     license = licenses.gpl3Plus;