--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tool_dependencies.xml	Sat Mar 01 14:27:03 2014 -0500
@@ -0,0 +1,42 @@
+<?xml version="1.0"?>
+<tool_dependency>
+  <!-- TODO: Add more dependencies to support other image formats -->
+    <package name="libpng" version="1.6.7">
+      <repository changeset_revision="7c4a9189b712" name="package_libpng_1_6_7" owner="devteam" prior_installation_required="True" toolshed="http://toolshed.g2.bx.psu.edu" />
+    </package>
+    <package name="libgd" version="2.1.0">
+      <install version="1.0">
+          <actions>
+              <action type="download_by_url">https://bitbucket.org/libgd/gd-libgd/downloads/libgd-2.1.0.tar.gz</action>
+                <action type="set_environment_for_install">
+                  <repository changeset_revision="7c4a9189b712" name="package_libpng_1_6_7" owner="devteam" prior_installation_required="False" toolshed="http://toolshed.g2.bx.psu.edu">
+                      <package name="libpng" version="1.6.7" />
+                    </repository>
+                </action>
+                <!-- action type="autoconf" can replace the following:
+                 <action type="shell_command">./configure /-prefix=$INSTALL_DIR /-with-png=$LIBPNG_ROOT_DIR; make ; make install </action>
+                -->
+                <action type="autoconf">--with-png=$LIBPNG_ROOT_DIR</action>
+                <action type="set_environment">
+                  <environment_variable action="prepend_to" name="LIBRARY_PATH">$INSTALL_DIR/lib</environment_variable>
+                    <environment_variable action="prepend_to" name="LD_LIBRARY_PATH">$INSTALL_DIR/lib</environment_variable>
+                    <environment_variable action="prepend_to" name="CPLUS_INCLUDE_PATH">$INSTALL_DIR/include</environment_variable>
+                    <environment_variable action="set_to" name="LIBGD_ROOT_PATH">$INSTALL_DIR</environment_variable>
+                </action>
+            </actions>
+        </install>
+        <readme>
+            Installs and complils libdg.
+            GD is an open source code library for the dynamic creation of images by programmers. 
+            GD is written in C, and "wrappers" are available for Perl, PHP and other languages. 
+            GD creates PNG, JPEG, GIF, WebP, XPM, BMP images, among other formats. 
+            GD is commonly used to generate charts, graphics, thumbnails, and most anything else, on the fly. 
+            While not restricted to use on the web, the most common applications of GD involve website development.
+            
+            http://libgd.bitbucket.org/
+            
+            LIBRARY_PATH, LD_LIBRARY_PATH and CPLUS_INCLUDE_PATH will be set.
+            LIBGD_ROOT_PATH will point to the root path of the installation.
+        </readme>
+    </package>
+</tool_dependency>