diff --git a/README.md b/README.md
index b76b9dd..8bc9ff9 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,6 @@
# java-proguard
+ProGuard is a free Java class file shrinker, optimizer, and obfuscator. It removes unused
+classes, fields, methods, and attributes. It then optimizes the bytecode. It then renames
+the remaining classes, fields, and methods using short meaningless names.
+
diff --git a/java-proguard-4.3-homedir.patch b/java-proguard-4.3-homedir.patch
new file mode 100644
index 0000000..00aa459
--- /dev/null
+++ b/java-proguard-4.3-homedir.patch
@@ -0,0 +1,27 @@
+diff -Nru proguard4.3/bin/proguardgui.sh proguard4.3/bin-gil/proguardgui.sh
+--- proguard4.3/bin/proguardgui.sh 2008-08-06 23:53:51.000000000 +0200
++++ proguard4.3/bin-gil/proguardgui.sh 2009-04-15 03:19:34.000000000 +0200
+@@ -6,4 +6,4 @@
+ PROGUARD_HOME=`dirname "$0"`
+ PROGUARD_HOME=`dirname "$PROGUARD_HOME"`
+
+-java -jar $PROGUARD_HOME/lib/proguardgui.jar "$@"
++java -jar _PROGUARD_HOME_/lib/proguardgui.jar "$@"
+diff -Nru proguard4.3/bin/proguard.sh proguard4.3/bin-gil/proguard.sh
+--- proguard4.3/bin/proguard.sh 2008-08-06 22:18:59.000000000 +0200
++++ proguard4.3/bin-gil/proguard.sh 2009-04-15 03:19:07.000000000 +0200
+@@ -6,4 +6,4 @@
+ PROGUARD_HOME=`dirname "$0"`
+ PROGUARD_HOME=`dirname "$PROGUARD_HOME"`
+
+-java -jar $PROGUARD_HOME/lib/proguard.jar "$@"
++java -jar _PROGUARD_HOME_/lib/proguard.jar "$@"
+diff -Nru proguard4.3/bin/retrace.sh proguard4.3/bin-gil/retrace.sh
+--- proguard4.3/bin/retrace.sh 2008-08-06 22:22:41.000000000 +0200
++++ proguard4.3/bin-gil/retrace.sh 2009-04-15 03:18:49.000000000 +0200
+@@ -6,4 +6,4 @@
+ PROGUARD_HOME=`dirname "$0"`
+ PROGUARD_HOME=`dirname "$PROGUARD_HOME"`
+
+-java -jar $PROGUARD_HOME/lib/retrace.jar "$@"
++java -jar _PROGUARD_HOME_/lib/retrace.jar "$@"
diff --git a/java-proguard-4.3-nowtkplugin.patch b/java-proguard-4.3-nowtkplugin.patch
new file mode 100644
index 0000000..8ac72d2
--- /dev/null
+++ b/java-proguard-4.3-nowtkplugin.patch
@@ -0,0 +1,11 @@
+--- proguard4.3/build/build.xml 2008-08-12 23:45:59.000000000 +0200
++++ proguard4.3/build/build.xml-gil 2009-04-15 01:59:47.000000000 +0200
+@@ -14,7 +14,7 @@
+
+
+
+-
++
+
+
+
+URL: http://proguard.sourceforge.net/
+Source0: http://downloads.sourceforge.net/project/proguard/proguard/%{majver}/proguard%{version}.tar.gz
+Source1: proguard.png
+Source2: proguardgui.png
+Source3: retrace.png
+Source4: proguard-script
+Source5: proguard-gui-script
+Source6: proguard-retrace-script
+Patch0: java-proguard-4.3-nowtkplugin.patch
+Patch1: java-proguard-4.3-homedir.patch
+License: GPL
+BuildRequires: apache-ant
+BuildRequires: desktop-file-utils
+BuildRequires: ImageMagick
+BuildRequires: jpackage-utils
+BuildRequires: java-openjdk
+Requires: jpackage-utils
+BuildRoot: %{_tmppath}/%{name}-%{version}-root
+
+%description
+ProGuard is a free Java class file shrinker, optimizer, and obfuscator. It removes unused
+classes, fields, methods, and attributes. It then optimizes the bytecode. It then renames
+the remaining classes, fields, and methods using short meaningless names.
+
+%package gui
+Group: Development/Tools
+Summary: GUI for ProGuard
+Requires: %{name} = %{?epoch:%epoch:}%{version}-%{release}
+Requires: jpackage-utils
+
+%description gui
+ProGuard, Java class file shrinker, optimizer, obfuscator, and preverifier.
+
+This package contains a GUI for ProGuard.
+
+%package javadoc
+Group: Documentation
+Summary: Javadoc for %{name}
+
+%description javadoc
+ProGuard, Java class file shrinker, optimizer, obfuscator, and preverifier.
+
+This package contains javadoc for %{name}.
+
+%package manual
+Group: Documentation
+Summary: Manual for %{name}
+
+%description manual
+ProGuard, Java class file shrinker, optimizer, obfuscator, and preverifier.
+
+This package contains documentation for %{name}.
+
+%prep
+
+%setup -q -n proguard%{version}
+
+for j in $(find . -name "*.jar"); do
+ rm -rf $j
+done
+
+for c in $(find . -name "*.class"); do
+ rm -rf $c
+done
+
+sed -i '/class-path/I d' src/proguard/gui/MANIFEST.MF
+sed -i '/class-path/I d' src/proguard/retrace/MANIFEST.MF
+
+%build
+pushd build
+ unset JAVA_HOME
+ export JAVA_HOME=%{javahome}
+ export ANT_HOME=%{_datadir}/ant
+ ant -Dant.jar=%{_javadir}/ant.jar basic anttask
+
+# target all require Sun Java Wireless Toolkit
+popd
+
+%{javadoc_bin} -d apidocs \
+ -source 1.5 \
+ -classpath classes \
+ -encoding iso-8859-1 \
+ $(find src -name '*.java')
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+mkdir -p %{buildroot}%{_javadir}/proguard
+
+install -p -m 644 lib/proguard.jar \
+ %{buildroot}%{_javadir}/proguard/proguard-%{version}.jar
+install -p -m 644 lib/proguardgui.jar \
+ %{buildroot}%{_javadir}/proguard/proguardgui-%{version}.jar
+install -p -m 644 lib/retrace.jar \
+ %{buildroot}%{_javadir}/proguard/retrace-%{version}.jar
+
+(
+ cd %{buildroot}%{_javadir}/proguard
+ for jar in *-%{version}*; do
+ ln -sf ${jar} `echo $jar| sed "s|-%{version}||g"`
+ done
+)
+
+mkdir -p %{buildroot}%{_bindir}
+install -m 755 %{SOURCE4} %{buildroot}%{_bindir}/proguard
+install -m 755 %{SOURCE5} %{buildroot}%{_bindir}/proguard-gui
+install -m 755 %{SOURCE6} %{buildroot}%{_bindir}/retrace
+
+mkdir -p %{buildroot}%{_javadocdir}/proguard-%{version}
+cp -pr apidocs/* %{buildroot}%{_javadocdir}/proguard-%{version}
+ln -sf proguard-%{version} %{buildroot}%{_javadocdir}/proguard
+
+mkdir -p %{buildroot}%{_datadir}/applications
+
+cat > proguard-gui.desktop << _GIL
+[Desktop Entry]
+Name=ProGuard
+Comment=Java class file shrinker, optimizer, obfuscator and preverifier
+Exec=proguard-gui
+Terminal=false
+Type=Application
+Icon=proguard
+Categories=Development;Java;
+_GIL
+
+desktop-file-install --mode=644 --dir=%{buildroot}%{_datadir}/applications proguard-gui.desktop
+
+convert docs/favicon.ico proguard.png
+
+mkdir -p %{buildroot}%{_datadir}/icons/hicolor/48x48/apps
+install -pm 644 proguard-0.png %{buildroot}%{_datadir}/icons/hicolor/48x48/apps/proguard.png
+mkdir -p %{buildroot}%{_datadir}/icons/hicolor/32x32/apps
+install -pm 644 proguard-1.png %{buildroot}%{_datadir}/icons/hicolor/32x32/apps/proguard.png
+mkdir -p %{buildroot}%{_datadir}/icons/hicolor/16x16/apps
+install -pm 644 proguard-2.png %{buildroot}%{_datadir}/icons/hicolor/16x16/apps/proguard.png
+
+mkdir -p %{buildroot}%{_datadir}/pixmaps
+
+ln -sf ../icons/hicolor/32x32/apps/proguard.png \
+ %{buildroot}%{_datadir}/pixmaps/proguard.png
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%files
+%defattr(-,root,root)
+%{_bindir}/proguard
+%{_bindir}/retrace
+%dir %{_javadir}/proguard
+%{_javadir}/proguard/proguard-%{version}.jar
+%{_javadir}/proguard/proguard.jar
+%{_javadir}/proguard/retrace-%{version}.jar
+%{_javadir}/proguard/retrace.jar
+%doc README docs/license.html
+
+%post gui
+touch --no-create %{_datadir}/icons/hicolor
+if [ -x /usr/bin/gtk-update-icon-cache ]; then
+ gtk-update-icon-cache -q %{_datadir}/icons/hicolor
+fi
+
+%postun gui
+touch --no-create %{_datadir}/icons/hicolor
+if [ -x /usr/bin/gtk-update-icon-cache ]; then
+ gtk-update-icon-cache -q %{_datadir}/icons/hicolor
+fi
+
+%files gui
+%defattr(-,root,root)
+%{_bindir}/proguard-gui
+%{_javadir}/proguard/proguardgui-%{version}.jar
+%{_javadir}/proguard/proguardgui.jar
+%{_datadir}/applications/proguard-gui.desktop
+%{_datadir}/icons/hicolor/*x*/apps/proguard.png
+%{_datadir}/pixmaps/proguard.png
+
+%files javadoc
+%defattr(-,root,root)
+%{_javadocdir}/proguard-%{version}
+%{_javadocdir}/proguard
+
+%files manual
+%defattr(-,root,root)
+%doc docs examples
+
+%changelog
+* Mon Jan 17 2011 gil 4.5.1-1mamba
+- update to 4.5.1
+
+* Wed Jun 02 2010 gil 4.4-2mamba
+- rebuilt with sun-java 6u20
+
+* Wed Dec 16 2009 gil 4.4-1mamba
+- update to 4.4
+
+* Wed Apr 15 2009 gil 4.3-1mamba
+- package created by autospec
diff --git a/proguard-gui-script b/proguard-gui-script
new file mode 100644
index 0000000..15afc12
--- /dev/null
+++ b/proguard-gui-script
@@ -0,0 +1,15 @@
+#!/bin/bash
+#. /usr/share/java-utils/java-functions
+
+unset JAVA_HOME
+export JAVA_HOME=/usr/lib/jvm/jdk-openjdk
+JAVA=$JAVA_HOME/bin/java
+
+MAIN_CLASS=proguard.gui.ProGuardGUI
+
+#set_classpath "proguard"
+
+#run "$@"
+
+CP=$(build-classpath proguard)
+$JAVA -cp $CP $MAIN_CLASS
diff --git a/proguard-retrace-script b/proguard-retrace-script
new file mode 100644
index 0000000..53d0ff9
--- /dev/null
+++ b/proguard-retrace-script
@@ -0,0 +1,15 @@
+#!/bin/bash
+#. /usr/share/java-utils/java-functions
+
+unset JAVA_HOME
+export JAVA_HOME=/usr/lib/jvm/jdk-openjdk
+JAVA=$JAVA_HOME/bin/java
+
+MAIN_CLASS=proguard.retrace.ReTrace
+
+#set_classpath "proguard"
+
+#run "$@"
+
+CP=$(build-classpath proguard)
+$JAVA -cp $CP $MAIN_CLASS
\ No newline at end of file
diff --git a/proguard-script b/proguard-script
new file mode 100644
index 0000000..d3322af
--- /dev/null
+++ b/proguard-script
@@ -0,0 +1,15 @@
+#!/bin/bash
+#. /usr/share/java-utils/java-functions
+
+unset JAVA_HOME
+export JAVA_HOME=/usr/lib/jvm/jdk-openjdk
+JAVA=$JAVA_HOME/bin/java
+
+MAIN_CLASS=proguard.ProGuard
+
+#set_classpath "proguard"
+
+#run "$@"
+
+CP=$(build-classpath proguard)
+$JAVA -cp $CP $MAIN_CLASS
\ No newline at end of file
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diff --git a/proguardgui.png b/proguardgui.png
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diff --git a/retrace.png b/retrace.png
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