--- a/tool_dependencies.xml	Fri Jan 31 08:40:58 2014 -0500
+++ b/tool_dependencies.xml	Fri Feb 07 05:04:38 2014 -0500
@@ -1,4 +1,8 @@
+<?xml version="1.0"?>
 <tool_dependency>
+    <package name="libpng" version="1.6.7">
+        <repository changeset_revision="a0b0e0281cc4" name="package_libpng_1_6_7" owner="devteam" prior_installation_required="True" toolshed="http://testtoolshed.g2.bx.psu.edu" />
+    </package>
     <package name="blat" version="35x1">
         <install version="1.0">
             <actions>
@@ -7,11 +11,11 @@
                     The problem is that the binaries are not versioned and we can't guarantee reproducibility. 
                     The source packages are versioned and are stored for a long time.
                 -->
-                <action type="download_by_url" target_filename="blatSrc.zip">http://hgwdev.cse.ucsc.edu/~kent/src/blatSrc35.zip</action>
+                <action target_filename="blatSrc.zip" type="download_by_url">http://hgwdev.cse.ucsc.edu/~kent/src/blatSrc35.zip</action>
                 <action type="shell_command">export HOME=$INSTALL_DIR &amp;&amp; mkdir -p $HOME/bin/`uname -m` &amp;&amp; make MACHTYPE=`uname -m` &amp;&amp; mv $INSTALL_DIR/bin/`uname -m`/* $INSTALL_DIR/bin/ &amp;&amp; rm $INSTALL_DIR/.ccache/ -rf</action>
                 <action type="set_environment">
-                  <environment_variable name="PATH" action="prepend_to">$INSTALL_DIR/bin/</environment_variable>
-                  <environment_variable name="BLAT_PATH" action="set_to">$INSTALL_DIR</environment_variable>
+                  <environment_variable action="prepend_to" name="PATH">$INSTALL_DIR/bin/</environment_variable>
+                  <environment_variable action="set_to" name="BLAT_PATH">$INSTALL_DIR</environment_variable>
                 </action>