From 79beeefdc79350be88f68ea9aa0439698165cbd8 Mon Sep 17 00:00:00 2001
From: Peter Edley <peter@edleyit.com>
Date: Fri, 18 Sep 2026 20:32:40 +0100
Subject: [PATCH] build: add Fyne/GLFW native deps to dev shell

Add libGL, mesa, wayland, libxkbcommon and the X client libraries the
Fyne cgo toolchain links against, plus LIBRARY_PATH so Go's linker finds
them (it does not read NIX_LDFLAGS).
---
 flake.nix | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/flake.nix b/flake.nix
index 23b36fc..0e49382 100644
--- a/flake.nix
+++ b/flake.nix
@@ -30,12 +30,39 @@
             libjpeg_turbo
             pipewire
             xdg-desktop-portal
+            # Fyne / GLFW (cgo) native dependencies.
+            libGL
+            mesa
+            wayland
+            libxkbcommon
+            libX11
+            libXrandr
+            libXi
+            libXcursor
+            libXinerama
+            libXxf86vm
           ];
 
           # Make turbojpeg resolve via pkg-config for cgo builds.
           PKG_CONFIG_PATH = "${pkgs.libjpeg_turbo.dev}/lib/pkgconfig";
           LD_LIBRARY_PATH = "${pkgs.libjpeg_turbo.out}/lib";
 
+          # Fyne/GLFW link against X11, Wayland, GL and misc libs. Go's cgo
+          # linker does not read NIX_LDFLAGS, so expose the runtime lib dirs
+          # via LIBRARY_PATH for the link step.
+          LIBRARY_PATH = with pkgs; lib.makeLibraryPath [
+            libGL
+            mesa
+            wayland
+            libxkbcommon
+            libX11
+            libXrandr
+            libXi
+            libXcursor
+            libXinerama
+            libXxf86vm
+          ];
+
           # Nix's libspa-0.2.pc emits -fno-strict-aliasing/-fno-strict-overflow
           # which Go's cgo rejects unless explicitly allowed.
           CGO_CFLAGS_ALLOW = "-fno-strict-overflow|-fno-strict-aliasing";