flutter: Use autoPatchelfHook for SDK artifacts

This allows SDK artifacts (including build tools and libraries) to use the right interpreter and library locations, abolishing the need for a FHS or post-build patches.

`autoPatchelf` has been used through `autoPatchelfHook`, instead of the `autoPatchelf` command on just the artifact directory, due to the latter method not patching interpreter paths (https://discourse.nixos.org/t/trying-to-use-autopatchelf/24003).

Co-authored-by: FlafyDev <flafyarazi@gmail.com>
Co-authored-by: gilice <gilice@proton.me>
Co-authored-by: hacker1024 <hacker1024@users.sourceforge.net>

pkgs/development/compilers/flutter/flutter.nix

@@ -4,12 +4,25 @@
 , src
 
 , lib
-, git
 , stdenv
+, autoPatchelfHook
+, git
 , which
+, atk
+, glib
+, gtk3
+, libepoxy
 }:
 
 let
+  # Libraries that Flutter artifacts depend on at runtime.
+  artifactRuntimeDeps = [
+    atk
+    glib
+    gtk3
+    libepoxy
+  ];
+
   self =
     stdenv.mkDerivation {
       name = "$flutter-${version}-unwrapped";
@@ -17,7 +30,8 @@ let
 
       outputs = [ "out" "cache" ];
 
-      buildInputs = [ git ];
+      nativeBuildInputs = [ autoPatchelfHook ];
+      buildInputs = [ git ] ++ artifactRuntimeDeps;
 
       postPatch = ''
         patchShebangs --build ./bin/

pkgs/development/compilers/flutter/wrapper.nix

@@ -95,6 +95,5 @@ in
     --prefix PATH : '${lib.makeBinPath buildTools}' \
     --prefix PKG_CONFIG_PATH : '${builtins.concatStringsSep ":" pkgConfigDirectories}' \
     --prefix CXXFLAGS "''\t" '${builtins.concatStringsSep " " cppFlags}' \
-    --prefix LDFLAGS "''\t" '${builtins.concatStringsSep " " (map (flag: "-Wl,${flag}") linkerFlags)}' \
+    --prefix LDFLAGS "''\t" '${builtins.concatStringsSep " " (map (flag: "-Wl,${flag}") linkerFlags)}'
-    --suffix LD_LIBRARY_PATH : '${lib.makeLibraryPath appPrebuiltDeps}'
 '')