Fixed bug #147, required some (ugly) modifications: changed function jQuery(...){} to jQuery = function(...){}, necessary because IE parses all function name(){} declarations before executing inline code; added intro.js and outro.js to both build.xml (tested) and Makefile (not tested) to include "if(typeof window.jQuery == "undefined") { ... }

Makefile

@@ -6,10 +6,12 @@ DOCS_DIR = ${PREFIX}/docs
 TEST_DIR = ${PREFIX}/test
 DIST_DIR = ${PREFIX}/dist
 
-MODULES = ${SRC_DIR}/jquery/*\
+MODULES = ${SRC_DIR}/intro.js\
+	${SRC_DIR}/jquery/*\
 	${SRC_DIR}/event/*\
 	${SRC_DIR}/fx/*\
 	${SRC_DIR}/ajax/*
+	${SRC_DIR}/outro.js\
 
 JQ = ${DIST_DIR}/jquery.js
 JQ_LITE = ${DIST_DIR}/jquery.lite.js

build.xml

@@ -17,11 +17,13 @@
     <target name="jquery">
         <echo message="Building ${JQ}" />
         <mkdir dir="${DIST_DIR}" />
-        <concat destfile="${JQ}">
+        <concat destfile="${JQ}">
+        	<fileset dir="${SRC_DIR}" includes="intro.js" />
             <fileset dir="${SRC_DIR}" includes="jquery/*.js" />
             <fileset dir="${SRC_DIR}" includes="event/*.js" />
             <fileset dir="${SRC_DIR}" includes="fx/*.js" />
-            <fileset dir="${SRC_DIR}" includes="ajax/*.js" />
+            <fileset dir="${SRC_DIR}" includes="ajax/*.js" />
+    		<fileset dir="${SRC_DIR}" includes="outro.js" />
         </concat>
         <echo message="${JQ} built." />
     </target>

src/intro.js

@@ -0,0 +1,2 @@
+/* prevent execution of jQuery if included more then once */
+if(typeof window.jQuery == "undefined") {

src/jquery/jquery.js

@@ -28,7 +28,7 @@ window.undefined = window.undefined;
  * @name jQuery
  * @cat Core
  */
-function jQuery(a,c) {
+jQuery = function(a,c) {
 
 	// Shortcut for document ready (because $(document).each() is silly)
 	if ( a && a.constructor == Function && jQuery.fn.ready )
@@ -67,7 +67,7 @@ function jQuery(a,c) {
 	// If so, execute it in context
 	if ( fn && fn.constructor == Function )
 		this.each(fn);
-}
+};
 
 // Map over the $ in case of overwrite
 if ( typeof $ != "undefined" )

src/outro.js

@@ -0,0 +1 @@
+} // close: if(typeof window.jQuery == "undefined") {