diff --git a/setup-libraries.sh b/setup-libraries.sh
index d0ed83e18..3642d91ff 100755
--- a/setup-libraries.sh
+++ b/setup-libraries.sh
@@ -70,10 +70,12 @@ source iPhoneSimulator.sh
     if [ ! -f out/build-cpp11-libcpp-i386-iphonesimulator/lib/libuv.a ] ; then ./scripts/build_libuv.sh ; fi
     echo '     ...done'
 
-source iPhoneSimulator64.sh
-    if [ ! -f out/build-cpp11-libcpp-x86_64-iphonesimulator/lib/libpng.a ] ; then ./scripts/build_png.sh ; fi
-    if [ ! -f out/build-cpp11-libcpp-x86_64-iphonesimulator/lib/libuv.a ] ; then ./scripts/build_libuv.sh ; fi
-    echo '     ...done'
+# libs conflict with MacOSX build
+# TODO: need to break apart targets
+#source iPhoneSimulator64.sh
+#    if [ ! -f out/build-cpp11-libcpp-x86_64-iphonesimulator/lib/libpng.a ] ; then ./scripts/build_png.sh ; fi
+#    if [ ! -f out/build-cpp11-libcpp-x86_64-iphonesimulator/lib/libuv.a ] ; then ./scripts/build_libuv.sh ; fi
+#    echo '     ...done'
 
 source MacOSX.sh
     if [ ! -f out/build-cpp11-libcpp-x86_64-macosx/lib/libpng.a ] ; then ./scripts/build_png.sh ; fi