diff --git a/pkgs/desktops/xfce4-13/exo/default.nix b/pkgs/desktops/xfce4-13/exo/default.nix
index fa66b5c08e7..933fa595aad 100644
--- a/pkgs/desktops/xfce4-13/exo/default.nix
+++ b/pkgs/desktops/xfce4-13/exo/default.nix
@@ -4,15 +4,19 @@
 mkXfceDerivation rec {
   category = "xfce";
   pname = "exo";
-  version = "4.14pre1";
-  rev = "xfce-4.14pre1";
+  version = "4.14pre2";
+  rev = "xfce-4.14pre2";
 
-  sha256 = "1gf9fb48nkafb4jj0hmm2s00mpl32dp5iqxfaxm5i1nc6884hipw";
+  sha256 = "0s91fv4yzafmdi25c63yin15sa25cfcyarpvavr4q3mmmiamzpi0";
 
   nativeBuildInputs = [ libxslt perlPackages.URI ];
   buildInputs = [ gtk3 libxfce4ui libxfce4util ];
 
   postPatch = ''
+    substituteInPlace exo-helper/Makefile.am \
+      --replace 'exo_helper_2_CFLAGS =' \
+                'exo_helper_2_CFLAGS = $(GIO_UNIX_CFLAGS)'
+
     substituteInPlace docs/reference/Makefile.am \
       --replace http://docbook.sourceforge.net/release/xsl/current \
                 ${docbook_xsl}/share/xml/docbook-xsl
diff --git a/pkgs/desktops/xfce4-13/garcon/default.nix b/pkgs/desktops/xfce4-13/garcon/default.nix
index 487e384358a..a63ddeb52ea 100644
--- a/pkgs/desktops/xfce4-13/garcon/default.nix
+++ b/pkgs/desktops/xfce4-13/garcon/default.nix
@@ -3,10 +3,10 @@
 mkXfceDerivation rec {
   category = "xfce";
   pname = "garcon";
-  version = "4.14pre1";
-  rev = "xfce-4.14pre1";
+  version = "4.14pre2";
+  rev = "xfce-4.14pre2";
 
-  sha256 = "0gmvi6m3iww7m3xxx5wiqd8vsi18igzhcpjfzknfc8z741vc38yj";
+  sha256 = "0d2fir4vbfdmng9k70nf5zv3fjwgr6g0czrp458x6qswih2gv2ik";
 
   buildInputs = [ gtk3 libxfce4ui libxfce4util ];
 }
diff --git a/pkgs/desktops/xfce4-13/libxfce4ui/default.nix b/pkgs/desktops/xfce4-13/libxfce4ui/default.nix
index d760ed8bc71..77083fabbd3 100644
--- a/pkgs/desktops/xfce4-13/libxfce4ui/default.nix
+++ b/pkgs/desktops/xfce4-13/libxfce4ui/default.nix
@@ -4,10 +4,10 @@
 mkXfceDerivation rec {
   category = "xfce";
   pname = "libxfce4ui";
-  version = "4.14pre1";
-  rev = "xfce-4.14pre1";
+  version = "4.14pre2";
+  rev = "xfce-4.14pre2";
 
-  sha256 = "0z4sadqwp71b3qmxlbms26d8vnxd9cks84mr2f1qaiww6rp7v69y";
+  sha256 = "0kvqzf91ygxxkcy4drjminby4c3c42c54a3if8jwx0zmgbml7l8q";
 
   buildInputs =  [ gobject-introspection gtk2 gtk3 libstartup_notification xfconf ];
   propagatedBuildInputs = [ libxfce4util libICE libSM ];
diff --git a/pkgs/desktops/xfce4-13/libxfce4util/default.nix b/pkgs/desktops/xfce4-13/libxfce4util/default.nix
index 1539b3f88d7..e6cafcac8bb 100644
--- a/pkgs/desktops/xfce4-13/libxfce4util/default.nix
+++ b/pkgs/desktops/xfce4-13/libxfce4util/default.nix
@@ -3,10 +3,10 @@
 mkXfceDerivation rec {
   category = "xfce";
   pname = "libxfce4util";
-  version = "4.14pre1";
-  rev = "xfce-4.14pre1";
+  version = "4.14pre2";
+  rev = "xfce-4.14pre2";
 
-  sha256 = "13cqv4b34rmr9h7nr9gmk3x2mi2y0v91xzwrwhikd1lmz9ir5lkf";
+  sha256 = "0s1fh798v86ifg46qn3zaykpwidn23vpqbkxq1fcbxpxb6rpxxwk";
 
   buildInputs = [ gobject-introspection ];
 
diff --git a/pkgs/desktops/xfce4-13/thunar-volman/default.nix b/pkgs/desktops/xfce4-13/thunar-volman/default.nix
index 47900f344b3..db7324140c5 100644
--- a/pkgs/desktops/xfce4-13/thunar-volman/default.nix
+++ b/pkgs/desktops/xfce4-13/thunar-volman/default.nix
@@ -3,10 +3,10 @@
 mkXfceDerivation rec {
   category = "xfce";
   pname = "thunar-volman";
-  version = "4.14pre1";
-  rev = "xfce-4.14pre1";
+  version = "4.14pre2";
+  rev = "xfce-4.14pre2";
 
   buildInputs = [ exo gtk3 libgudev libxfce4ui libxfce4util xfconf ];
 
-  sha256 = "1g784yjhjacjnkhr8m62xyhnxlfbwk0fwb366p9kkz035k51idrv";
+  sha256 = "0jl863z6rxz50vqa31s58dfn429yn5x8scg492bvgl4cnmni6a30";
 }
diff --git a/pkgs/desktops/xfce4-13/thunar/default.nix b/pkgs/desktops/xfce4-13/thunar/default.nix
index 5dbea2146c5..e559505aca6 100644
--- a/pkgs/desktops/xfce4-13/thunar/default.nix
+++ b/pkgs/desktops/xfce4-13/thunar/default.nix
@@ -4,10 +4,10 @@
 mkXfceDerivation rec {
   category = "xfce";
   pname = "thunar";
-  version = "4.14pre1";
-  rev = "xfce-4.14pre1";
+  version = "4.14pre2";
+  rev = "xfce-4.14pre2";
 
-  sha256 = "13l1nw526jz80p0ynhxqd3a8flp561z0321z7h4rvnidicvdr32n";
+  sha256 = "0b17yf8ss8s8xyr65v4zrq15ayr5nskqpxy4wxah33n7lz09dh8r";
 
   postPatch = ''
     substituteInPlace docs/Makefile.am \
diff --git a/pkgs/desktops/xfce4-13/tumbler/default.nix b/pkgs/desktops/xfce4-13/tumbler/default.nix
index 27f76fbcaab..e67c7f1e298 100644
--- a/pkgs/desktops/xfce4-13/tumbler/default.nix
+++ b/pkgs/desktops/xfce4-13/tumbler/default.nix
@@ -6,10 +6,10 @@
 mkXfceDerivation rec {
   category = "xfce";
   pname = "tumbler";
-  version = "4.14pre1";
-  rev = "xfce-4.14pre1";
+  version = "4.14pre2";
+  rev = "xfce-4.14pre2";
 
-  sha256 = "1bvcxqs3391dkf36gpfr0hbylsk84nqhv6kf3lf1hq6p7s9f9z3z";
+  sha256 = "1k579g8dmcfpw1vakspv6k2qkr1y1axyr8cbd0fqjhqdj4pis81i";
 
   buildInputs = [ gdk_pixbuf ffmpegthumbnailer libgsf poppler ];
 }
diff --git a/pkgs/desktops/xfce4-13/xfce4-appfinder/default.nix b/pkgs/desktops/xfce4-13/xfce4-appfinder/default.nix
index d511f76ec1b..22a6b6fedd2 100644
--- a/pkgs/desktops/xfce4-13/xfce4-appfinder/default.nix
+++ b/pkgs/desktops/xfce4-13/xfce4-appfinder/default.nix
@@ -3,10 +3,10 @@
 mkXfceDerivation rec {
   category = "xfce";
   pname = "xfce4-appfinder";
-  version = "4.14pre1";
-  rev = "xfce-4.14pre1";
+  version = "4.14pre2";
+  rev = "xfce-4.14pre2";
 
-  sha256 = "02ds3s7wbpxka7qnliq4c5p428ricdf0jwv01dkfg88gpgqgvswg";
+  sha256 = "0vr5lx4fv0kldqvqfnsjp6ss7ciz0b2yjq4fhmrhk8czkf8p7va8";
 
   nativeBuildInputs = [ exo ];
   buildInputs = [ garcon gtk3 libxfce4ui libxfce4util xfconf ];
diff --git a/pkgs/desktops/xfce4-13/xfce4-dev-tools/default.nix b/pkgs/desktops/xfce4-13/xfce4-dev-tools/default.nix
index 9dedb8674dc..49133b0ba2d 100644
--- a/pkgs/desktops/xfce4-13/xfce4-dev-tools/default.nix
+++ b/pkgs/desktops/xfce4-13/xfce4-dev-tools/default.nix
@@ -4,9 +4,10 @@
 mkXfceDerivation rec {
   category = "xfce";
   pname = "xfce4-dev-tools";
-  version = "4.12.0";
+  version = "4.14pre2";
+  rev = "xfce-4.14pre2";
 
-  sha256 = "0bbmlmw2dpm10q2wv3vy592i0vx7b5h1qnd35j0fdzxqb8x2hbw2";
+  sha256 = "11g5byxjihgkn0wi7gp8627d04wr59k117lpv53vdbsvv2qgksmg";
 
   nativeBuildInputs = [ autoreconfHook ];
 
diff --git a/pkgs/desktops/xfce4-13/xfce4-panel/default.nix b/pkgs/desktops/xfce4-13/xfce4-panel/default.nix
index c7551a7e6da..4f1de32abdf 100644
--- a/pkgs/desktops/xfce4-13/xfce4-panel/default.nix
+++ b/pkgs/desktops/xfce4-13/xfce4-panel/default.nix
@@ -3,10 +3,10 @@
 mkXfceDerivation rec {
   category = "xfce";
   pname = "xfce4-panel";
-  version = "4.14pre1";
-  rev = "xfce-4.14pre1";
+  version = "4.14pre2";
+  rev = "xfce-4.14pre2";
 
-  sha256 = "03jyglimm4wgpmg5a128fshrygzwmpf5wdw26l9azqj8b6iz55al";
+  sha256 = "1p0bkbxjh14kgny2lpcjg2q8pm55l8i7qsr5bsvdppw3ab46kz34";
 
   nativeBuildInputs = [ makeWrapper ];
   buildInputs = [ exo garcon gtk2 gtk3 libxfce4ui libxfce4util libwnck3 xfconf ];
diff --git a/pkgs/desktops/xfce4-13/xfce4-power-manager/default.nix b/pkgs/desktops/xfce4-13/xfce4-power-manager/default.nix
index 0307738aee2..a855f2c977e 100644
--- a/pkgs/desktops/xfce4-13/xfce4-power-manager/default.nix
+++ b/pkgs/desktops/xfce4-13/xfce4-power-manager/default.nix
@@ -4,10 +4,10 @@
 mkXfceDerivation rec {
   category = "xfce";
   pname = "xfce4-power-manager";
-  version = "4.14pre1";
-  rev = "xfce-4.14pre1";
+  version = "4.14pre2";
+  rev = "xfce-4.14pre2";
 
-  sha256 = "1n9i62jh5ldf8g9n64mm6nh1182abbf96444j14dppb82r94q077";
+  sha256 = "1x1ssji4v9qp64si38paz15bgsgs1w3hkx080qznnmcxqlg7zpj9";
 
   nativeBuildInputs = [ automakeAddFlags exo ];
   buildInputs = [ gtk3 libnotify libxfce4ui libxfce4util upower xfconf ];
diff --git a/pkgs/desktops/xfce4-13/xfce4-session/default.nix b/pkgs/desktops/xfce4-13/xfce4-session/default.nix
index 6104f632439..a39a70b09a8 100644
--- a/pkgs/desktops/xfce4-13/xfce4-session/default.nix
+++ b/pkgs/desktops/xfce4-13/xfce4-session/default.nix
@@ -3,10 +3,10 @@
 mkXfceDerivation rec {
   category = "xfce";
   pname = "xfce4-session";
-  version = "4.14pre1";
-  rev = "xfce-4.14pre1";
+  version = "4.14pre2";
+  rev = "xfce-4.14pre2";
 
-  sha256 = "14bn3wn5qrciy2nbhbx634bz0d6lnxb135bx1qglcf35wn6f0hqk";
+  sha256 = "1asfy11rp6zmn70a3w5dqssxpxywhpm9ns7zyiaz6pnpcq075dr0";
 
   buildInputs = [ exo dbus-glib dbus gtk3 libxfce4ui libxfce4util libwnck3 xfconf polkit iceauth ];
 
diff --git a/pkgs/desktops/xfce4-13/xfce4-settings/default.nix b/pkgs/desktops/xfce4-13/xfce4-settings/default.nix
index 7e885c526d1..a939f5e213c 100644
--- a/pkgs/desktops/xfce4-13/xfce4-settings/default.nix
+++ b/pkgs/desktops/xfce4-13/xfce4-settings/default.nix
@@ -5,10 +5,10 @@
 mkXfceDerivation rec {
   category = "xfce";
   pname = "xfce4-settings";
-  version = "4.14pre1";
-  rev = "xfce-4.14pre1";
+  version = "4.14pre2";
+  rev = "xfce-4.14pre2";
 
-  sha256 = "0q6jh3fqw9n9agp018xiwidrld445irnli5jgwpszi9hc435dbpc";
+  sha256 = "0agi5flbzbc9q29yh7wbk3giif74finf4shq3q7v2h91w5kvyc9j";
 
   postPatch = ''
     automakeAddFlags xfce4-settings-editor/Makefile.am xfce4_settings_editor_CFLAGS DBUS_GLIB_CFLAGS
diff --git a/pkgs/desktops/xfce4-13/xfconf/default.nix b/pkgs/desktops/xfce4-13/xfconf/default.nix
index 691fc70644c..8a37aefab41 100644
--- a/pkgs/desktops/xfce4-13/xfconf/default.nix
+++ b/pkgs/desktops/xfce4-13/xfconf/default.nix
@@ -3,10 +3,10 @@
 mkXfceDerivation rec {
   category = "xfce";
   pname = "xfconf";
-  version = "4.14pre1";
-  rev = "xfce-4.14pre1";
+  version = "4.14pre2";
+  rev = "xfce-4.14pre2";
 
-  sha256 = "0n9cjiz3mj011p3w4jv0n2ifz38whmykdl888mczc26l1gflxnr3";
+  sha256 = "056r2dkkw8hahqin1p5k8rz0r9r0z8piniy855nd1ns0mx2sh47k";
 
   buildInputs = [ libxfce4util ];
 }
diff --git a/pkgs/desktops/xfce4-13/xfdesktop/default.nix b/pkgs/desktops/xfce4-13/xfdesktop/default.nix
index 2d87c6ac987..6b99b1b6a35 100644
--- a/pkgs/desktops/xfce4-13/xfdesktop/default.nix
+++ b/pkgs/desktops/xfce4-13/xfdesktop/default.nix
@@ -1,12 +1,14 @@
-{ mkXfceDerivation, exo, gtk3, libxfce4ui, libxfce4util, libwnck3, xfconf }:
+{ mkXfceDerivation, exo, wrapGAppsHook, gtk3, libxfce4ui, libxfce4util, libwnck3, xfconf }:
 
 mkXfceDerivation rec {
   category = "xfce";
   pname = "xfdesktop";
-  version = "4.14pre1";
-  rev = "xfce-4.14pre1";
+  version = "4.14pre2";
+  rev = "xfce-4.14pre2";
 
-  sha256 = "1mni8gzgglhwicaw093i2vpk8q2vilmgg5qbr3izbb8ighhr09jl";
+  sha256 = "14sfcxbwxhhwn9nmiap46nz6idvw5hwr8wyjqrhq4h79x78g18k4";
+
+  nativeBuildInputs = [ wrapGAppsHook ]; # fix "No GSettings schemas are installed on the system"
 
   buildInputs = [
     exo
diff --git a/pkgs/desktops/xfce4-13/xfwm4/default.nix b/pkgs/desktops/xfce4-13/xfwm4/default.nix
index c8106c8ec17..34b5bdae45a 100644
--- a/pkgs/desktops/xfce4-13/xfwm4/default.nix
+++ b/pkgs/desktops/xfce4-13/xfwm4/default.nix
@@ -5,10 +5,10 @@
 mkXfceDerivation rec {
   category = "xfce";
   pname = "xfwm4";
-  version = "4.14pre1";
-  rev = "xfce-4.14pre1";
+  version = "4.14pre2";
+  rev = "xfce-4.14pre2";
 
-  sha256 = "0kdlkpb7phcrsqhyhnw82f03fzmd5xb4w9fdj94frfprfja0b468";
+  sha256 = "00nysv5qrv5n4xzyqv4jnsmgljwr2wyynis1gpdbm2kvl5ndxrrd";
 
   nativeBuildInputs = [ exo librsvg ];