diff --git a/pkgs/development/libraries/mesa/default.nix b/pkgs/development/libraries/mesa/default.nix
index dd9302db952..5ff884fd3c1 100644
--- a/pkgs/development/libraries/mesa/default.nix
+++ b/pkgs/development/libraries/mesa/default.nix
@@ -1,6 +1,6 @@
 { stdenv, fetchurl, fetchpatch
 , pkgconfig, intltool, autoreconfHook, substituteAll
-, file, expat, libdrm, xorg, wayland, systemd
+, file, expat, libdrm, xorg, wayland, systemd, openssl
 , llvmPackages, libffi, libomxil-bellagio, libva
 , libelf, libvdpau, python2
 , grsecEnabled ? false
@@ -71,11 +71,13 @@ stdenv.mkDerivation {
     "--with-dri-driverdir=$(drivers)/lib/dri"
     "--with-dri-searchpath=${driverLink}/lib/dri"
     "--with-egl-platforms=x11,wayland,drm"
-    (optionalString (stdenv.system != "armv7l-linux")
-      "--with-gallium-drivers=svga,i915,ilo,r300,r600,radeonsi,nouveau,freedreno,swrast")
-    (optionalString (stdenv.system != "armv7l-linux")
-      "--with-dri-drivers=i915,i965,nouveau,radeon,r200,swrast")
-
+  ]
+    ++ optionals (stdenv.system != "armv7l-linux") [
+      "--with-gallium-drivers=svga,i915,ilo,r300,r600,radeonsi,nouveau,freedreno,swrast"
+      "--with-dri-drivers=i915,i965,nouveau,radeon,r200,swrast"
+      "--with-vulkan-drivers=intel"
+  ]
+    ++ [
     (enableFeature enableTextureFloats "texture-float")
     (enableFeature grsecEnabled "glx-rts")
     (enableFeature stdenv.isLinux "dri3")
@@ -112,7 +114,7 @@ stdenv.mkDerivation {
     glproto dri2proto dri3proto presentproto
     libX11 libXext libxcb libXt libXfixes libxshmfence
     libffi wayland libvdpau libelf libXvMC
-    libomxil-bellagio libva libpthreadstubs
+    libomxil-bellagio libva libpthreadstubs openssl/*or another sha1 provider*/
     (python2.withPackages (ps: [ ps.Mako ]))
   ] ++ optional stdenv.isLinux systemd;
 
@@ -134,8 +136,13 @@ stdenv.mkDerivation {
       $out/lib/vdpau         \
       $out/lib/bellagio      \
       $out/lib/libxatracker* \
+      $out/lib/libvulkan_* \
+
+    # move share/vulkan/icd.d/
+    mv $out/share/ $drivers/
 
     mv $out/lib/dri/* $drivers/lib/dri
+    rmdir "$out/lib/dri"
 
     # move libOSMesa to $osmesa, as it's relatively big
     mkdir -p {$osmesa,$drivers}/lib/
diff --git a/pkgs/development/libraries/openldap/default.nix b/pkgs/development/libraries/openldap/default.nix
index b197236a649..cdef4d9a49f 100644
--- a/pkgs/development/libraries/openldap/default.nix
+++ b/pkgs/development/libraries/openldap/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
   '';
 
   postInstall = ''
-    chmod +x $out/lib/*.so
+    chmod +x "$out"/lib/*.{so,dylib}
   '';
 
   meta = with stdenv.lib; {
diff --git a/pkgs/servers/x11/xorg/overrides.nix b/pkgs/servers/x11/xorg/overrides.nix
index 930132bb071..c87acfee43a 100644
--- a/pkgs/servers/x11/xorg/overrides.nix
+++ b/pkgs/servers/x11/xorg/overrides.nix
@@ -217,6 +217,7 @@ in
 
   libXrender = attrs: attrs // {
     outputs = [ "out" "dev" "doc" ];
+    propagatedBuildInputs = [ xorg.renderproto ];
     preConfigure = setMalloc0ReturnsNullCrossCompiling;
   };
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 1c6b3be9469..44f71848c9b 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -7925,10 +7925,18 @@ in
     (if crossSystem.libc == "glibc" then libcCross
       else if crossSystem.libc == "libSystem" then darwin.libiconv
       else libiconvReal)
-    else if stdenv.isGlibc then stdenv.cc.libc
+    else if stdenv.isGlibc then glibcIconv stdenv.cc.libc
     else if stdenv.isDarwin then darwin.libiconv
     else libiconvReal;
 
+  glibcIconv = libc: let
+    inherit (builtins.parseDrvName libc.name) name version;
+    libcDev = lib.getDev libc;
+  in runCommand "${name}-iconv-${version}" {} ''
+    mkdir -p $out/include
+    ln -sv ${libcDev}/include/iconv.h $out/include
+  '';
+
   libiconvReal = callPackage ../development/libraries/libiconv {
     fetchurl = fetchurlBoot;
   };