--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tool_dependencies.xml	Wed Nov 06 00:38:03 2013 -0500
@@ -0,0 +1,19 @@
+ <tool_dependency>
+    <package name="libpng" version="1.2.5">
+        <install version="1.0">
+            <actions>
+                <action type="download_by_url">ftp://ftp.simplesystems.org/pub/libpng/png/src/libpng12/libpng-1.2.50.tar.gz</action>
+                <action type="autoconf" />
+
+                <action type="set_environment">
+                    <environment_variable name="PATH" action="prepend_to">$INSTALL_DIR/bin</environment_variable>
+                    <environment_variable name="LIBRARY_PATH" action="prepend_to">$INSTALL_DIR/lib</environment_variable>
+                    <environment_variable name="LD_LIBRARY_PATH" action="prepend_to">$INSTALL_DIR/lib</environment_variable>
+                    <environment_variable name="C_INCLUDE_PATH" action="prepend_to">$INSTALL_DIR/include</environment_variable>
+                    <environment_variable name="LIBPNG_ROOT_DIR" action="set_to">$INSTALL_DIR</environment_variable>
+                </action>
+            </actions>
+        </install>
+        <readme>Compiling libpng requires make and a C compiler. You can access libpng with $LIBPNG_ROOT_DIR. http://www.libpng.org/pub/png/libpng.html</readme>
+    </package>
+</tool_dependency>