From 2406a15db968348bea27f0af84e919c0476422aa Mon Sep 17 00:00:00 2001
From: Daniel Barlow <dan@telent.net>
Date: Sat, 14 Jun 2025 11:54:40 +0100
Subject: [PATCH] support cairo-trace (but it doesn't work)

this env var is needed for cairo-trace to run, but note it doesn't
actually print anything. I don't know why but will speculate that
it's a gir thing
---
 pkgs/maps/default.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/maps/default.nix b/pkgs/maps/default.nix
index 721b9a1..f89f4f4 100644
--- a/pkgs/maps/default.nix
+++ b/pkgs/maps/default.nix
@@ -67,6 +67,7 @@ in stdenv.mkDerivation {
   ];
   GIO_EXTRA_MODULES = [ "${glib-networking.out}/lib/gio/modules" ];
   RXI_JSON="${rxi-json}/";
+  CAIRO_TRACE_SO = "${cairo.out}/lib/cairo/libcairo-trace.so";
 
   makeFlags = [ "PREFIX=${placeholder "out"}" "NAME=${pname}" ];