glib: bin/gio is required by gvfs executables

this fixes gvfs in caia (mate desktop)

pkgs/development/libraries/glib/default.nix

@@ -57,7 +57,7 @@ stdenv.mkDerivation rec {
     ++ optional doCheck ./skip-timer-test.patch
     ++ [ ./schema-override-variable.patch ];
 
-  outputs = [ "out" "dev" "devdoc" ];
+  outputs = [ "bin" "out" "dev" "devdoc" ];
   outputBin = "dev";
 
   setupHook = ./setup-hook.sh;
@@ -106,12 +106,16 @@ stdenv.mkDerivation rec {
   DETERMINISTIC_BUILD = 1;
 
   postInstall = ''
+    mkdir -p $bin/bin
+    for app in gapplication gdbus gio gsettings; do
+      mv "$dev/bin/$app" "$bin/bin"
+    done
+
     moveToOutput "share/glib-2.0" "$dev"
     substituteInPlace "$dev/bin/gdbus-codegen" --replace "$out" "$dev"
     sed -i "$dev/bin/glib-gettextize" -e "s|^gettext_dir=.*|gettext_dir=$dev/share/glib-2.0/gettext|"
-  ''
-  # This file is *included* in gtk3 and would introduce runtime reference via __FILE__.
-  + ''
+
+    # This file is *included* in gtk3 and would introduce runtime reference via __FILE__.
     sed '1i#line 1 "${name}/include/glib-2.0/gobject/gobjectnotifyqueue.c"' \
       -i "$dev"/include/glib-2.0/gobject/gobjectnotifyqueue.c
   '';