xfce.{{libxfce4{util,ui,windowing},xfconf,xfce4-panel,garcon,thunar}}: Conditionalize gobject-introspection and vala

gobject-introspection doesn't support static

Although the dependencies for these don't build on static this can still
be useful in the future or for preventing additional issues being created
for xfce packages.

Tested on native by changing the conditionals to false.

pkgs/desktops/xfce/core/garcon/default.nix

@@ -1,4 +1,10 @@
-{ lib, mkXfceDerivation, gobject-introspection, gtk3, libxfce4ui, libxfce4util }:
+{ stdenv, lib, mkXfceDerivation, gtk3, libxfce4ui, libxfce4util,
+  withIntrospection ?
+    lib.meta.availableOn stdenv.hostPlatform gobject-introspection
+    && stdenv.hostPlatform.emulatorAvailable buildPackages,
+  buildPackages,
+  gobject-introspection,
+}:
 
 mkXfceDerivation {
   category = "xfce";
@@ -7,7 +13,9 @@ mkXfceDerivation {
 
   sha256 = "sha256-MeZkDb2QgGMaloO6Nwlj9JmZByepd6ERqpAWqrVv1xw=";
 
-  nativeBuildInputs = [ gobject-introspection ];
+  nativeBuildInputs = lib.optionals withIntrospection [
+    gobject-introspection
+  ];
 
   buildInputs = [ gtk3 libxfce4ui libxfce4util ];
 

pkgs/desktops/xfce/core/libxfce4ui/default.nix

@@ -1,9 +1,8 @@
 {
+  stdenv,
   mkXfceDerivation,
   lib,
-  gobject-introspection,
   perl,
-  vala,
   libICE,
   libSM,
   libepoxy,
@@ -13,6 +12,12 @@
   xfconf,
   gtk3,
   libxfce4util,
+  withIntrospection ?
+    lib.meta.availableOn stdenv.hostPlatform gobject-introspection
+    && stdenv.hostPlatform.emulatorAvailable buildPackages,
+  buildPackages,
+  gobject-introspection,
+  vala,
 }:
 
 mkXfceDerivation {
@@ -22,11 +27,14 @@ mkXfceDerivation {
 
   sha256 = "sha256-M+OapPHQ/WxlkUzHPx+ELstVyGoZanCxCL0N8hDWSN8=";
 
-  nativeBuildInputs = [
-    gobject-introspection
-    perl
-    vala
-  ];
+  nativeBuildInputs =
+    [
+      perl
+    ]
+    ++ lib.optionals withIntrospection [
+      gobject-introspection
+      vala # vala bindings require GObject introspection
+    ];
 
   buildInputs = [
     libICE

pkgs/desktops/xfce/core/libxfce4util/default.nix

@@ -1,9 +1,14 @@
 {
+  stdenv,
   mkXfceDerivation,
   lib,
-  gobject-introspection,
   vala,
   glib,
+  withIntrospection ?
+    lib.meta.availableOn stdenv.hostPlatform gobject-introspection
+    && stdenv.hostPlatform.emulatorAvailable buildPackages,
+  buildPackages,
+  gobject-introspection,
 }:
 
 mkXfceDerivation {
@@ -13,9 +18,9 @@ mkXfceDerivation {
 
   sha256 = "sha256-0qbJSCXHsVz3XILHICFhciyz92LgMZiR7XFLAESHRGQ=";
 
-  nativeBuildInputs = [
+  nativeBuildInputs = lib.optionals withIntrospection [
     gobject-introspection
-    vala
+    vala # vala bindings require GObject introspection
   ];
 
   propagatedBuildInputs = [

pkgs/desktops/xfce/core/libxfce4windowing/default.nix

@@ -1,6 +1,6 @@
-{ lib
+{ stdenv
+, lib
 , mkXfceDerivation
-, gobject-introspection
 , wayland-scanner
 , glib
 , gtk3
@@ -11,6 +11,11 @@
 , wayland
 , wayland-protocols
 , wlr-protocols
+, withIntrospection ?
+    lib.meta.availableOn stdenv.hostPlatform gobject-introspection
+    && stdenv.hostPlatform.emulatorAvailable buildPackages
+, buildPackages
+, gobject-introspection
 }:
 
 mkXfceDerivation {
@@ -21,8 +26,9 @@ mkXfceDerivation {
   sha256 = "sha256-Xw1hs854K5dZCAYoBMoqJzdSxPRFUYqEpWxg4DLSK5Q=";
 
   nativeBuildInputs = [
-    gobject-introspection
     wayland-scanner
+  ] ++ lib.optionals withIntrospection [
+    gobject-introspection
   ];
 
   buildInputs = [

pkgs/desktops/xfce/core/thunar/default.nix

@@ -1,4 +1,5 @@
-{ mkXfceDerivation
+{ stdenv
+, mkXfceDerivation
 , lib
 , docbook_xsl
 , exo
@@ -14,10 +15,12 @@
 , pcre2
 , xfce4-panel
 , xfconf
-, gobject-introspection
 , makeWrapper
 , symlinkJoin
 , thunarPlugins ? []
+, withIntrospection ? false
+, buildPackages
+, gobject-introspection
 }:
 
 let unwrapped = mkXfceDerivation {
@@ -29,8 +32,9 @@ let unwrapped = mkXfceDerivation {
 
   nativeBuildInputs = [
     docbook_xsl
-    gobject-introspection
     libxslt
+  ] ++ lib.optionals withIntrospection [
+    gobject-introspection
   ];
 
   buildInputs = [

pkgs/desktops/xfce/core/xfce4-panel/default.nix

@@ -1,9 +1,9 @@
-{ lib
+{ stdenv
+, lib
 , mkXfceDerivation
 , cairo
 , exo
 , garcon
-, gobject-introspection
 , gtk-layer-shell
 , gtk3
 , libdbusmenu-gtk3
@@ -12,9 +12,14 @@
 , libxfce4util
 , libxfce4windowing
 , tzdata
-, vala
 , wayland
 , xfconf
+, withIntrospection ?
+    lib.meta.availableOn stdenv.hostPlatform gobject-introspection
+    && stdenv.hostPlatform.emulatorAvailable buildPackages
+, buildPackages
+, gobject-introspection
+, vala
 }:
 
 mkXfceDerivation {
@@ -24,9 +29,9 @@ mkXfceDerivation {
 
   sha256 = "sha256-tLWjU0M7tuE+qqDwaE1CtnOjDiPWno8Mf7hhxYxbvjo=";
 
-  nativeBuildInputs = [
+  nativeBuildInputs = lib.optionals withIntrospection [
     gobject-introspection
-    vala
+    vala # vala bindings require GObject introspection
   ];
 
   buildInputs = [

pkgs/desktops/xfce/core/xfconf/default.nix

@@ -1,4 +1,5 @@
 {
+  stdenv,
   lib,
   mkXfceDerivation,
   gobject-introspection,
@@ -6,6 +7,10 @@
   vala,
   libxfce4util,
   glib,
+  withIntrospection ?
+    lib.meta.availableOn stdenv.hostPlatform gobject-introspection
+    && stdenv.hostPlatform.emulatorAvailable buildPackages,
+  buildPackages,
 }:
 
 mkXfceDerivation {
@@ -15,11 +20,14 @@ mkXfceDerivation {
 
   sha256 = "sha256-U+Sk7ubBr1ZD1GLQXlxrx0NQdhV/WpVBbnLcc94Tjcw=";
 
-  nativeBuildInputs = [
-    gobject-introspection
-    perl
-    vala
-  ];
+  nativeBuildInputs =
+    [
+      perl
+    ]
+    ++ lib.optionals withIntrospection [
+      gobject-introspection
+      vala # vala bindings require GObject introspection
+    ];
 
   buildInputs = [ libxfce4util ];