diff --git a/pkgs/applications/misc/rxvt_unicode/default.nix b/pkgs/applications/misc/rxvt_unicode/default.nix
index b0334dcd7ce9..12eeb62dc043 100644
--- a/pkgs/applications/misc/rxvt_unicode/default.nix
+++ b/pkgs/applications/misc/rxvt_unicode/default.nix
@@ -28,7 +28,8 @@ stdenv.mkDerivation (rec {
   patches = [
     ./rxvt-unicode-9.06-font-width.patch
     ./rxvt-unicode-256-color-resources.patch
-  ];
+  ]
+  ++ stdenv.lib.optional stdenv.isDarwin ./rxvt-unicode-makefile-phony.patch;
 
   preConfigure =
     ''
diff --git a/pkgs/applications/misc/rxvt_unicode/rxvt-unicode-makefile-phony.patch b/pkgs/applications/misc/rxvt_unicode/rxvt-unicode-makefile-phony.patch
new file mode 100644
index 000000000000..5e42e17c156a
--- /dev/null
+++ b/pkgs/applications/misc/rxvt_unicode/rxvt-unicode-makefile-phony.patch
@@ -0,0 +1,10 @@
+--- a/Makefile.in	2015-01-13 08:52:30.000000000 +0100
++++ b/Makefile.in	2015-01-13 08:52:58.000000000 +0100
+@@ -30,6 +30,7 @@
+ subdirs = src doc
+ 
+ RECURSIVE_TARGETS = all allbin alldoc tags clean distclean realclean install
++.PHONY: $(RECURSIVE_TARGETS)
+ 
+ #-------------------------------------------------------------------------
+ 
diff --git a/pkgs/applications/window-managers/i3/default.nix b/pkgs/applications/window-managers/i3/default.nix
index 19d72559c5fe..f07c1d223109 100644
--- a/pkgs/applications/window-managers/i3/default.nix
+++ b/pkgs/applications/window-managers/i3/default.nix
@@ -24,7 +24,8 @@ stdenv.mkDerivation rec {
 
   doCheck = stdenv.system == "x86_64-linux";
 
-  checkPhase = ''
+  checkPhase = stdenv.lib.optionalString (stdenv.system == "x86_64-linux")
+  ''
     ln -sf "${xdummy}/bin/xdummy" testcases/Xdummy
     (cd testcases && perl complete-run.pl -p 1)
     ! grep -q '^not ok' testcases/latest/complete-run.log
diff --git a/pkgs/development/libraries/libev/default.nix b/pkgs/development/libraries/libev/default.nix
index b0c74c9e54c4..6b070c170c7d 100644
--- a/pkgs/development/libraries/libev/default.nix
+++ b/pkgs/development/libraries/libev/default.nix
@@ -20,7 +20,6 @@ rec {
     maintainers = [
       a.lib.maintainers.raskin
     ];
-    platforms = with a.lib.platforms;
-      linux ++ freebsd;
+    platforms = a.lib.platforms.all;
   };
 }
diff --git a/pkgs/development/libraries/xcb-util-cursor/HEAD.nix b/pkgs/development/libraries/xcb-util-cursor/HEAD.nix
new file mode 100644
index 000000000000..9ca3474ce3b8
--- /dev/null
+++ b/pkgs/development/libraries/xcb-util-cursor/HEAD.nix
@@ -0,0 +1,39 @@
+{ stdenv, fetchgit, bashInteractive, autoconf, automake, libtool, pkgconfig
+, git, xlibs, gnum4, libxcb, gperf }:
+
+stdenv.mkDerivation rec {
+  name = "xcb-util-cursor-HEAD";
+
+  src = fetchgit {
+    url    = http://anongit.freedesktop.org/git/xcb/util-cursor.git;
+    rev    = "f03cc278c6cce0cf721adf9c3764d3c5fba63392";
+    sha256 = "1ljvq1gdc1lc33dwn4pzwppws2zgyqx51y3sd3c8gb7vcg5f27i5";
+  };
+
+  meta = with stdenv.lib; {
+    description = "XCB cursor library (libxcursor port)";
+    homepage    = http://cgit.freedesktop.org/xcb/util-cursor;
+    license     = licenses.mit;
+    maintainer  = with maintainers; [ lovek323 ];
+    platforms   = platforms.linux ++ platforms.darwin;
+  };
+
+  buildInputs = [
+    autoconf
+    automake
+    gnum4
+    gperf
+    libtool
+    libxcb
+    pkgconfig
+    xlibs.utilmacros
+    xlibs.xcbutilimage
+    xlibs.xcbutilrenderutil
+  ];
+
+  configurePhase = ''
+    sed -i '15 i\
+      LT_INIT' configure.ac
+    ${bashInteractive}/bin/bash autogen.sh --prefix="$out"
+  '';
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index a19df3e1c5f4..66860791d4c2 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -7384,6 +7384,8 @@ let
 
   xcb-util-cursor = callPackage ../development/libraries/xcb-util-cursor { };
 
+  xcb-util-cursor-HEAD = callPackage ../development/libraries/xcb-util-cursor/HEAD.nix { };
+
   xdo = callPackage ../tools/misc/xdo { };
 
   xineLib = callPackage ../development/libraries/xine-lib {
@@ -10300,7 +10302,9 @@ let
 
   hydrogen = callPackage ../applications/audio/hydrogen { };
 
-  i3 = callPackage ../applications/window-managers/i3 { };
+  i3 = callPackage ../applications/window-managers/i3 {
+    xcb-util-cursor = if stdenv.isDarwin then xcb-util-cursor-HEAD else xcb-util-cursor;
+  };
 
   i3lock = callPackage ../applications/window-managers/i3/lock.nix {
     inherit (xorg) libxkbfile;
diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index 18e50ffdfa4e..ea0fd0c59c6b 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -4745,7 +4745,7 @@ let self = _self // overrides; _self = with self; {
       homepage = http://search.cpan.org/perldoc?CPAN::Meta::Spec;
       description = "System() and background procs w/ piping, redirs, ptys (Unix, Win32)";
       license = with stdenv.lib.licenses; [ artistic1 gpl1Plus ];
-      platforms = stdenv.lib.platforms.linux;
+      platforms = stdenv.lib.platforms.linux ++ stdenv.lib.platforms.darwin;
     };
   };
 
@@ -4958,7 +4958,7 @@ let self = _self // overrides; _self = with self; {
     propagatedBuildInputs = [ CommonSense ];
     meta = {
       homepage = http://search.cpan.org/perldoc?CPAN::Meta::Spec;
-      platforms = stdenv.lib.platforms.linux;
+      platforms = stdenv.lib.platforms.linux ++ stdenv.lib.platforms.darwin;
     };
   };