diff --git a/src/pil_files/patch_pil.patch b/src/pil_files/patch_pil.patch
index 0e54fd9..7e2f2f6 100644
--- a/src/pil_files/patch_pil.patch
+++ b/src/pil_files/patch_pil.patch
@@ -1,6 +1,6 @@
 diff -rupN Imaging-1.1.7/_imaging.c Imaging-1.1.7_patched/_imaging.c
---- Imaging-1.1.7/_imaging.c	2009-11-02 12:18:48.000000000 +0100
-+++ Imaging-1.1.7_patched/_imaging.c	2013-07-12 10:58:39.000000000 +0200
+--- Imaging-1.1.7/_imaging.c	2009-11-02 05:18:48.000000000 -0600
++++ Imaging-1.1.7_patched/_imaging.c	2013-10-25 15:07:23.000000000 -0500
 @@ -71,12 +71,28 @@
   * See the README file for information on usage and redistribution.
   */
@@ -32,8 +32,8 @@ diff -rupN Imaging-1.1.7/_imaging.c Imaging-1.1.7_patched/_imaging.c
  #define WITH_IMAGECHOPS /* ImageChops support */
  #define WITH_IMAGEDRAW /* ImageDraw support */
 diff -rupN Imaging-1.1.7/libImaging/Quant.c Imaging-1.1.7_patched/libImaging/Quant.c
---- Imaging-1.1.7/libImaging/Quant.c	2009-11-01 02:29:14.000000000 +0100
-+++ Imaging-1.1.7_patched/libImaging/Quant.c	2013-07-12 10:59:06.000000000 +0200
+--- Imaging-1.1.7/libImaging/Quant.c	2009-10-31 20:29:14.000000000 -0500
++++ Imaging-1.1.7_patched/libImaging/Quant.c	2013-10-25 15:07:23.000000000 -0500
 @@ -20,10 +20,15 @@
  
  #include "Imaging.h"
@@ -60,8 +60,8 @@ diff -rupN Imaging-1.1.7/libImaging/Quant.c Imaging-1.1.7_patched/libImaging/Qua
      unsigned long scale;
  } PixelHashData;
 diff -rupN Imaging-1.1.7/setup.py Imaging-1.1.7_patched/setup.py
---- Imaging-1.1.7/setup.py	2009-11-15 17:06:10.000000000 +0100
-+++ Imaging-1.1.7_patched/setup.py	2013-07-12 10:58:30.000000000 +0200
+--- Imaging-1.1.7/setup.py	2009-11-15 10:06:10.000000000 -0600
++++ Imaging-1.1.7_patched/setup.py	2013-10-25 15:08:08.000000000 -0500
 @@ -88,6 +88,7 @@ from distutils.command.build_ext import 
  
  try:
@@ -70,6 +70,22 @@ diff -rupN Imaging-1.1.7/setup.py Imaging-1.1.7_patched/setup.py
  except ImportError:
      _tkinter = None
  
+@@ -208,11 +209,11 @@ class pil_build_ext(build_ext):
+                 add_directory(include_dirs, tcl_dir)
+ 
+         # standard locations
+-        add_directory(library_dirs, "/usr/local/lib")
+-        add_directory(include_dirs, "/usr/local/include")
++        #add_directory(library_dirs, "/usr/local/lib")
++        #add_directory(include_dirs, "/usr/local/include")
+ 
+-        add_directory(library_dirs, "/usr/lib")
+-        add_directory(include_dirs, "/usr/include")
++        #add_directory(library_dirs, "/usr/lib")
++        #add_directory(include_dirs, "/usr/include")
+ 
+         #
+         # insert new dirs *before* default libs, to avoid conflicts
 @@ -283,6 +284,14 @@ class pil_build_ext(build_ext):
          #
          # core library
diff --git a/tools/build-python.sh b/tools/build-python.sh
index 8698d78..5a635b0 100755
--- a/tools/build-python.sh
+++ b/tools/build-python.sh
@@ -28,8 +28,9 @@ try cp $KIVYIOSROOT/src/python_files/_scproxy.py Lib/_scproxy.py
 
 echo "Building for native machine ============================================"
 
-try ./configure CC="$CCACHE clang -Qunused-arguments -fcolor-diagnostics" LDFLAGS="-lsqlite3"
-try make python.exe Parser/pgen
+OSX_SDK_ROOT=`xcrun --sdk macosx --show-sdk-path`
+try ./configure CC="clang -Qunused-arguments -fcolor-diagnostics" LDFLAGS="-lsqlite3" CFLAGS="--sysroot=$OSX_SDK_ROOT"
+try make -j4 python.exe Parser/pgen
 try mv python.exe hostpython
 try mv Parser/pgen Parser/hostpgen
 try make distclean
@@ -67,7 +68,7 @@ try ./configure CC="$ARM_CC" LD="$ARM_LD" \
 try patch -p1 < $KIVYIOSROOT/src/python_files/Python-$IOS_PYTHON_VERSION-pyconfig.patch
 try patch -p1 < $KIVYIOSROOT/src/python_files/Python-$IOS_PYTHON_VERSION-ctypes_duplicate.patch
 
-try make HOSTPYTHON=./hostpython HOSTPGEN=./Parser/hostpgen \
+try make -j4 HOSTPYTHON=./hostpython HOSTPGEN=./Parser/hostpgen \
      CROSS_COMPILE_TARGET=yes
 
 try make install HOSTPYTHON=./hostpython CROSS_COMPILE_TARGET=yes \