From 64cc4aa0ce8906aed3311dd84f04c33bf631b25e Mon Sep 17 00:00:00 2001
From: xeals <dev@xeal.me>
Date: Sat, 17 Oct 2020 13:54:44 +1100
Subject: [PATCH] alacritty-ligatures: add runtime dependencies

Ones of the changes from 0.5.0 is depending on the system fontconfig,
and one of the ligature changes forces the use of the system freetype.

One of the Rust libraries depends on the C++ stdlib.

At some point the build process stopped bundling the OpenGL libraries,
so add those back in too.
---
 default.nix | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/default.nix b/default.nix
index e603535..aac5aaa 100644
--- a/default.nix
+++ b/default.nix
@@ -16,8 +16,8 @@ rec {
 
   # Alacritty with the unmerged ligature patches applied.
   alacritty-ligatures = (pkgs.alacritty.override {
-    # Requires a minimum of 1.41, and this is the only version on both stable
-    # and unstable channels right now.
+    # 0.6.0 requires a minimum of 1.43, and this is the only version on both
+    # stable and unstable channels right now.
     inherit (pkgs.rustPackages_1_44) rustPlatform;
   }).overrideAttrs (oldAttrs: rec {
     pname = "${oldAttrs.pname}-ligatures";
@@ -36,6 +36,24 @@ rec {
       inherit src;
       outputHash = "1zvj8hdlc3fii1ffwkigvxjigwx53vls543pgcv3a2bw4sn1ky1k";
     });
+
+    ligatureInputs = [
+      pkgs.fontconfig
+      pkgs.freetype
+      pkgs.libglvnd
+      pkgs.stdenv.cc.cc.lib
+      pkgs.xlibs.libxcb
+    ];
+
+    buildInputs = (oldAttrs.buildInputs or []) ++ ligatureInputs;
+
+    # HACK: One of the ligature libraries required the C++ stdlib at runtime,
+    # and I can't work out a better way to push it to the RPATH.
+    postInstall = pkgs.lib.optional (!pkgs.stdenv.isDarwin) ''
+      patchelf \
+        --set-rpath ${pkgs.lib.makeLibraryPath ligatureInputs}:"$(patchelf --show-rpath $out/bin/alacritty)" \
+        $out/bin/alacritty
+    '';
   });
 
   amdgpu-fan = pkgs.callPackage ./pkgs/tools/misc/amdgpu-fan { };