From 5fe2ade9cada715ebbdd1a7038dc256ea1aa5e05 Mon Sep 17 00:00:00 2001
From: Robert Scott <code@humanleg.org.uk>
Date: Sun, 3 Apr 2022 23:03:00 +0100
Subject: [PATCH] freetype: add some key reverse dependencies to passthru.tests

---
 .../libraries/freetype/default.nix            | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/pkgs/development/libraries/freetype/default.nix b/pkgs/development/libraries/freetype/default.nix
index 5dfd5637002..47a0ab1ee2e 100644
--- a/pkgs/development/libraries/freetype/default.nix
+++ b/pkgs/development/libraries/freetype/default.nix
@@ -7,6 +7,21 @@
   # LCD filtering is also known as ClearType and covered by several Microsoft patents.
   # This option allows it to be disabled. See http://www.freetype.org/patents.html.
   useEncumberedCode ? true
+
+# for passthru.tests
+, cairo
+, fontforge
+, ghostscript
+, graphicsmagick
+, gtk3
+, harfbuzz
+, imagemagick
+, pango
+, poppler
+, python3
+, qt5
+, texmacs
+, ttfautohint
 }:
 
 
@@ -52,6 +67,23 @@ stdenv.mkDerivation rec {
       --set PKG_CONFIG_PATH "$PKG_CONFIG_PATH:$dev/lib/pkgconfig"
   '';
 
+  passthru.tests = {
+    inherit
+      cairo
+      fontforge
+      ghostscript
+      graphicsmagick
+      gtk3
+      harfbuzz
+      imagemagick
+      pango
+      poppler
+      texmacs
+      ttfautohint;
+    inherit (python3.pkgs) freetype-py;
+    inherit (qt5) qtbase;
+  };
+
   meta = with lib; {
     description = "A font rendering engine";
     longDescription = ''