diff --git a/Makefile b/Makefile
index 33b0d422a..0bdb35aa6 100644
--- a/Makefile
+++ b/Makefile
@@ -71,7 +71,7 @@ datadir=$(datarootdir)
 exec_prefix=$(prefix)
 bindir=$(exec_prefix)/bin
 
-DATA_PATH=$(datadir)/attract/
+DATA_PATH:=$(datadir)/attract/
 EXE_BASE=attract
 EXE_EXT=
 OBJ_DIR=obj
@@ -363,7 +363,7 @@ EXPATOBJS = \
 	$(EXPAT_OBJ_DIR)/xmlrole.o \
 	$(EXPAT_OBJ_DIR)/xmltok.o
 
-$(OBJ_DIR)/libexpat.a: $(EXPATOBJS) | $(OBJ_DIR)
+$(OBJ_DIR)/libexpat.a: $(EXPATOBJS) | $(EXPAT_OBJ_DIR)
 	$(AR) $(ARFLAGS) $@ $(EXPATOBJS)
 
 $(EXPAT_OBJ_DIR)/%.o: $(EXTLIBS_DIR)/expat/%.c | $(EXPAT_OBJ_DIR)
diff --git a/src/fe_input.cpp b/src/fe_input.cpp
index 4b383851b..89e1b060a 100644
--- a/src/fe_input.cpp
+++ b/src/fe_input.cpp
@@ -27,6 +27,7 @@
 #include <algorithm>
 #include <iomanip>
 #include <cstring>
+#include <cmath>
 #include <SFML/Window/VideoMode.hpp>
 #include <SFML/System/Vector2.hpp>
 
@@ -208,7 +209,7 @@ FeInputSource::FeInputSource( const sf::Event &e, const sf::IntRect &mc_rect, co
 			break;
 
 		case sf::Event::JoystickMoved:
-			if ( abs( e.joystickMove.position ) > joy_thresh )
+			if ( std::abs( e.joystickMove.position ) > joy_thresh )
 			{
 				m_type = (Type)(Joystick0 + e.joystickMove.joystickId);
 
diff --git a/src/fe_overlay.cpp b/src/fe_overlay.cpp
index 77b77fe52..e74471edf 100644
--- a/src/fe_overlay.cpp
+++ b/src/fe_overlay.cpp
@@ -28,6 +28,7 @@
 #include <SFML/Graphics.hpp>
 #include <iostream>
 #include <fstream>
+#include <cmath>
 
 class FeConfigContextImp : public FeConfigContext
 {
@@ -1024,7 +1025,7 @@ bool FeOverlay::event_loop( FeEventLoopCtx &ctx )
 					float pos = sf::Joystick::getAxisPosition(
 							ctx.move_event.joystickMove.joystickId,
 							ctx.move_event.joystickMove.axis );
-					if ( abs( pos ) > m_feSettings.get_joy_thresh() )
+					if ( std::abs( pos ) > m_feSettings.get_joy_thresh() )
 						cont=true;
 				}
 				break;
diff --git a/src/main.cpp b/src/main.cpp
index 0060f9265..1c6217ff1 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -31,6 +31,7 @@
 #include "fe_vm.hpp"
 #include <iostream>
 #include <cstring>
+#include <cmath>
 #include <cstdlib>
 
 #ifndef NO_MOVIE
@@ -809,7 +810,7 @@ int main(int argc, char *argv[])
 					float pos = sf::Joystick::getAxisPosition(
 							move_event.joystickMove.joystickId,
 							move_event.joystickMove.axis );
-					if ( abs( pos ) > feSettings.get_joy_thresh() )
+					if ( std::abs( pos ) > feSettings.get_joy_thresh() )
 						cont=true;
 				}
 				break;
diff --git a/util/create-windows-pkg.sh b/util/create-windows-pkg.sh
index 91a644654..0971d780f 100755
--- a/util/create-windows-pkg.sh
+++ b/util/create-windows-pkg.sh
@@ -32,12 +32,12 @@ fi
 cp -r *.md *.txt config/* stage/
 cp -r ../extras/* stage/
 
+# output changelog
+util/output-changelog-md.sh $1 > stage/Changelog.md
+
 # Unix to Windows line endings
 #
-sed -i 's/$/\r/' `find stage/ -name '*.*' | grep -e .md -e .txt -e .cfg -e .nut -e .nutr -e .msg -e .frag`
-
-# special case due to space in name
-sed -i 's/$/\r/' "stage/layouts/particle animation/layout.nut"
+find stage -type f -regextype posix-egrep -regex '.*\.(md|txt|cfg|nut|nutr|msg|frag)$' -print0 | xargs -0 sed -i 's/$/\r/'
 
 # Build and zip 32-bit windows version
 #
diff --git a/util/osx/DS_Store b/util/osx/DS_Store
new file mode 100644
index 000000000..661d8e67f
Binary files /dev/null and b/util/osx/DS_Store differ
diff --git a/util/osx/Info.plist b/util/osx/Info.plist
new file mode 100644
index 000000000..7aeb61466
--- /dev/null
+++ b/util/osx/Info.plist
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>English</string>
+	<key>CFBundleIconFile</key>
+	<string>attract.icns</string>
+	<key>CFBundleExecutable</key>
+	<string>launch.sh</string>
+	<key>CFBundleIdentifier</key>
+	<string>org.attractmode.attract</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>Attract</string>
+	<key>CFBundleDisplayName</key>
+	<string>AttradeMode</string>
+	<key>CFBundleSpokenName</key>
+	<string>Attract Mode</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>%%SHORTVERSION%%</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>%%BUNDLEVERSION%%</string>
+</dict>
+</plist>
diff --git a/util/osx/VolumeIcon.icns b/util/osx/VolumeIcon.icns
new file mode 100644
index 000000000..4bb156ba6
Binary files /dev/null and b/util/osx/VolumeIcon.icns differ
diff --git a/util/osx/attract.icns b/util/osx/attract.icns
new file mode 100644
index 000000000..887fc1ff3
Binary files /dev/null and b/util/osx/attract.icns differ
diff --git a/util/osx/background.png b/util/osx/background.png
new file mode 100644
index 000000000..19157d8dc
Binary files /dev/null and b/util/osx/background.png differ
diff --git a/util/osx/bundlelibs.py b/util/osx/bundlelibs.py
new file mode 100755
index 000000000..adbfe4867
--- /dev/null
+++ b/util/osx/bundlelibs.py
@@ -0,0 +1,77 @@
+#!/usr/bin/env python
+# coding: utf-8
+
+# Recursively change dynamic library link paths for non-system libraries
+# to be relative to the linked program and copy them to <program>/../libs
+#
+# TODO: parse individual architectures (necessary?)
+#       modify temp lib instead of assuming path changes work
+#
+# Gist: https://gist.github.com/h0tw1r3/b12752f8e33f70422fbe
+# Copyright: © 2015 Jeffrey Clark
+# License: GPLv3 (http://www.gnu.org/licenses/gpl-3.0.html)
+
+import os, stat, sys, subprocess, re, shutil
+
+toolchain = os.getenv('TOOLCHAIN')
+if toolchain == None:
+	toolchain = ""
+else:
+	toolchain += "-"
+otool = toolchain + "otool"
+install_name_tool = toolchain + "install_name_tool"
+
+def runOtool(filename):
+	p = subprocess.Popen([otool, '-XL', filename], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+	return iter(p.stdout.readline, b'')
+
+def fixname(filename, old, new):
+	p = subprocess.Popen([install_name_tool, '-change', old, new, filename], stdout=subprocess.PIPE)
+	p.communicate()
+	return
+
+def fixid(filename, newid):
+	p = subprocess.Popen([install_name_tool, '-id', '@loader_path/../libs/' + newid, filename], stdout=subprocess.PIPE)
+	p.communicate()
+	return
+
+def cmd_exists(cmd):
+	return subprocess.call("type " + cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE) == 0
+
+def mainloop(filename):
+	for line in runOtool(filename):
+		m = re.search('\s+/((usr|opt)/local/.*) \(.*\)$', line)
+		if m and len(m.group(1)) != 0:
+			path = os.path.realpath( os.path.join(os.getenv('LIB_BASE_PATH','/'),m.group(1)) )
+			linkname = os.path.basename( path )
+			if os.path.isfile( '../libs/' + linkname ) is False:
+				try:
+					shutil.copy2(path, '../libs/')
+					os.chmod('../libs/' + linkname, stat.S_IRWXU | stat.S_IRGRP | stat.S_IROTH )
+					fixid('../libs/' + linkname, linkname)
+					mainloop('../libs/' + linkname)
+				except IOError as e:
+					print e
+					continue
+			fixname( filename, '/' + m.group(1), '@loader_path/../libs/' + linkname )
+		else:
+			m = re.search('\s+(@rpath(.*)) \(.*\)$', line)
+			if m and len(m.group(2)) != 0:
+				path = os.path.realpath(os.path.join(os.getenv('LIB_BASE_PATH','/'), 'usr/local/lib', m.group(2)))
+				print path
+				linkname = os.path.basename(path)
+				fixname(filename, m.group(1), '@loader_path/../libs/' + linkname)
+
+if (len(sys.argv) != 2):
+	print "Usage: " + os.path.basename(sys.argv[0]) + " executable"
+	sys.exit(1)
+if (not cmd_exists(otool)):
+	raise ValueError('Unable to execute otool: ' + otool)
+if (not cmd_exists(install_name_tool)):
+	raise ValueError('Unable to execute install_name_tool: ' + install_name_tool)
+if (not os.path.isfile(sys.argv[1])):
+	raise ValueError('File does not exist: ' + sys.argv[1])
+if (not os.access(sys.argv[1], os.W_OK)):
+	raise ValueError('Unable to write to file: ' + sys.argv[1])
+
+mainloop(sys.argv[1])
diff --git a/util/osx/create-pkg.sh b/util/osx/create-pkg.sh
new file mode 100755
index 000000000..fed11b006
--- /dev/null
+++ b/util/osx/create-pkg.sh
@@ -0,0 +1,121 @@
+#!/usr/bin/env bash
+#
+# Copyright: © 2015 Jeffrey Clark
+# License: GPLv3 (http://www.gnu.org/licenses/gpl-3.0.html)
+
+### begin: init
+set -o pipefail
+set -o errtrace
+
+error() {
+	echo "ERROR in $0 : line $1 exit code $2"
+	exit $2
+}
+trap 'error ${LINENO} ${?}' ERR
+
+SCRIPT_PATH="${BASH_SOURCE[0]}";
+if ([ -h "${SCRIPT_PATH}" ]) then
+	while([ -h "${SCRIPT_PATH}" ]) do SCRIPT_PATH=`readlink "${SCRIPT_PATH}"`; done
+fi
+pushd . > /dev/null
+cd `dirname ${SCRIPT_PATH}` > /dev/null
+SCRIPT_PATH=`pwd`;
+cd ..
+### end: init
+
+LASTTAG=$(git describe --tag --abbrev=0)
+VERSION=$(git describe --tag | sed 's/-[^-]*$//')
+REVCOUNT=$(git rev-list HEAD --count)
+BUNDLEVERSION=${VERSION//[v-]/.}; BUNDLEVERSION=${BUNDLEVERSION#"."}
+SHORTVERSION=${LASTTAG//v/}
+
+### begin: make
+PLATFORM=$(uname)
+MAKEOPTS=""
+
+# osxcross auto-detect
+if [[ "$PLATFORM" != "Darwin" ]]; then
+	! [ -x "$(command -v hfsplus)" ]      && echo "FATAL: 'hfsplus' not found" && exit 1
+	! [ -x "$(command -v mkfs.hfsplus)" ] && echo "FATAL: 'mkfs.hfs' not found" && exit 1
+	! [ -x "$(command -v dmg)" ]          && echo "FATAL: 'dmg' not found" && exit 1
+
+	if [[ -z ${OSXCROSS_TARGET_DIR} || -z ${OSXCROSS_TARGET} ]]; then
+		echo "osxcross not initialized. add osxcross-conf and osxcross-env to the current environment" && exit 1
+	fi
+
+	[[ -z ${TOOLCHAIN} ]] && export TOOLCHAIN=x86_64-apple-${OSXCROSS_TARGET}
+	[[ -z ${LIB_BASE_PATH} ]] && export LIB_BASE_PATH="$(realpath ${OSXCROSS_TARGET_DIR}/macports/pkgs)"
+
+	MAKEOPTS="$MAKEOPTS CROSS=1 TOOLCHAIN=${TOOLCHAIN} FE_MACOSX_COMPILE=1 EXTRA_CFLAGS=\"-arch i386 -arch x86_64\""
+fi
+
+NPROC=$(getconf _NPROCESSORS_ONLN)
+LLIMIT=$(awk 'BEGIN{printf"%.1f",'${NPROC}'/2}')
+
+make -C .. clean
+eval make -C .. -j${NPROC} -l${LLIMIT} ${MAKEOPTS} DATA_PATH=../config/ $@
+### end: make
+
+function finish {
+	if [[ ! -z $SCRATCH && -d $SCRATCH ]] ; then
+		rm -rf "${SCRATCH}"
+	fi
+}
+trap finish EXIT
+
+SCRATCH=$(mktemp -d -t package.XXXXXXXX)
+APPCONTENT="${SCRATCH}"/disk/Attract.app/Contents
+
+# Create bundle folder structure
+mkdir -p "${APPCONTENT}"/{MacOS,Resources,libs}
+
+cp -r ../config "${APPCONTENT}"/
+[[ -d ../../extras ]] && cp -r ../../extras/* "${APPCONTENT}"/config/
+cp -a ../attract "${APPCONTENT}"/MacOS/
+cp -a "${SCRIPT_PATH}"/attract.icns "${APPCONTENT}"/Resources/
+cp -a "${SCRIPT_PATH}"/launch.sh "${APPCONTENT}"/MacOS/
+
+# Documentation
+mkdir "${SCRATCH}/disk/Documentation"
+cp -a ../License.txt ${SCRATCH}/disk/Documentation/
+cp ../*.md "${SCRATCH}"/disk/Documentation/
+./output-changelog-md.sh ${LASTTAG} > "${SCRATCH}"/disk/Documentation/Changelog.md
+
+# convert markdown to html if possible
+find "${SCRATCH}"/disk/Documentation/ -name '*.md' | while read f
+do
+	fp="${X%.md}"
+	if ! [ -x "$(command -v pandoc)" ]; then
+		mv "${f}" "${fp}.txt"
+	else
+		pandoc -f markdown_github -t html5 "${f}" -o "${fp}.html" && rm "${f}"
+	fi
+done
+
+cat "${SCRIPT_PATH}"/Info.plist | sed 's/%%SHORTVERSION%%/'${SHORTVERSION}'/' | sed 's/%%BUNDLEVERSION%%/'${BUNDLEVERSION}'/' > "${APPCONTENT}"/Info.plist
+
+cp osx/DS_Store "${SCRATCH}/disk/.DS_Store"
+cp osx/VolumeIcon.icns "${SCRATCH}/disk/.VolumeIcon.icns"
+mkdir "${SCRATCH}/disk/.background"
+cp osx/background.png "${SCRATCH}/disk/.background/background.png"
+
+# Copy extra libs to bundle and fix link path
+pushd "${APPCONTENT}"/MacOS >/dev/null
+${SCRIPT_PATH}/bundlelibs.py attract
+popd >/dev/null
+
+if [[ "$PLATFORM" != "Darwin" ]]; then
+	WORKDMG="${SCRATCH}/uncompressed.dmg"
+	dd if=/dev/zero of="${WORKDMG}" bs=1M count=128
+	mkfs.hfsplus -v "AttractMode" "${WORKDMG}"
+	hfsplus "${WORKDMG}" addall "${SCRATCH}/disk/"
+	hfsplus "${WORKDMG}" attr / C
+	hfsplus "${WORKDMG}" symlink " " /Applications
+	# TODO: genisoimage has drawbacks, but most people dont have libdmg-hfsplus built
+	#       make conditional package based on best available tools.
+	# genisoimage -D -V "AttractMode ${VERSION#v}" -no-pad -r -apple -o ${SCRATCH}/uncompressed.dmg ${SCRATCH}/disk/
+	dmg dmg "${WORKDMG}" ../attract-${VERSION#v}.dmg
+else
+	# TODO: mount dmg and set file attributes (volume icon) and create Application symlink
+	hdiutil create -volname "AttractMode" -srcfolder ${SCRATCH}/disk/ -ov -format UDBZ ../attract-${VERSION#v}.dmg
+fi
diff --git a/util/osx/launch.sh b/util/osx/launch.sh
new file mode 100755
index 000000000..5762a1a55
--- /dev/null
+++ b/util/osx/launch.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+cd "${0%/*}"
+./attract
diff --git a/util/output-changelog-md.sh b/util/output-changelog-md.sh
new file mode 100755
index 000000000..b98a4fe4f
--- /dev/null
+++ b/util/output-changelog-md.sh
@@ -0,0 +1,58 @@
+#!/bin/bash
+#
+# Generate markdown format changelog
+# from tag (default HEAD) to previous tag
+# grouped by author
+#
+# Copyright: © 2015 Jeffrey Clark
+# License: GPLv3 (http://www.gnu.org/licenses/gpl-3.0.html)
+
+# set cwd
+SCRIPT_PATH="${BASH_SOURCE[0]}";
+if ([ -h "${SCRIPT_PATH}" ]) then
+	while([ -h "${SCRIPT_PATH}" ]) do SCRIPT_PATH=`readlink "${SCRIPT_PATH}"`; done
+fi
+pushd . > /dev/null
+cd `dirname ${SCRIPT_PATH}` > /dev/null
+SCRIPT_PATH=`pwd`;
+cd ${SCRIPT_PATH}/..
+
+if [ $# -eq 0 ] ; then
+	TAG=$(git describe --tag)
+else
+	## Just for attractmode
+	if [[ $1 =~ ^v ]]; then
+		TAG=$1
+	else
+		TAG=v$1
+	fi
+fi
+PRETAG=$(git describe --tag --abbrev=0 ${TAG}^)
+
+IFS=$'\r\n'
+
+echo -e "# Changelog #"
+
+RANGE="${TAG}..HEAD"
+i=0
+for author in $(git --no-pager log --no-merges --pretty=format:"%an" ${RANGE} | sort | uniq -c) ;
+do
+	[ $i -eq 0 ] && echo -e "\n## Commits made after ${TAG} ##"
+	name=$(echo $author | sed 's/^\ *\([0-9]*\)\ \(.*\)$/\2/')
+	count=$(echo $author | sed 's/^\ *\([0-9]*\)\ \(.*\)$/\1/')
+	echo -e "\n### $name ($count commits)\n"
+	git --no-pager log --author="$name" --date=short --no-merges --pretty=format:"* %s" ${RANGE} | grep -v "(nw)\| NW\| nw"
+	(( i++ ))
+done
+
+RANGE="${PRETAG}..${TAG}"
+
+echo -e "\n## Commits from ${PRETAG} to ${TAG}"
+
+for author in $(git --no-pager log --no-merges --pretty=format:"%an" ${RANGE} | sort | uniq -c) ;
+do
+	name=$(echo $author | sed 's/^\ *\([0-9]*\)\ \(.*\)$/\2/')
+	count=$(echo $author | sed 's/^\ *\([0-9]*\)\ \(.*\)$/\1/')
+	echo -e "\n### $name ($count commits)\n"
+	git --no-pager log --author="$name" --date=short --no-merges --pretty=format:"* %s" ${RANGE} | grep -v "(nw)\| NW\| nw"
+done