Pull in the Sizzle library dynamically using a submodule and make it part of the jQuery build process.

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "test/qunit"]
 	path = test/qunit
 	url = git://github.com/jquery/qunit.git
+[submodule "src/sizzle"]
+	path = src/sizzle
+	url = git://github.com/jeresig/sizzle.git

Makefile

@@ -2,7 +2,6 @@ SRC_DIR = src
 BUILD_DIR = build
 
 PREFIX = .
-TEST_DIR = ${PREFIX}/test
 DIST_DIR = ${PREFIX}/dist
 
 BASE_FILES = ${SRC_DIR}/core.js\
@@ -33,18 +32,24 @@ MINJAR = java -jar ${BUILD_DIR}/yuicompressor-2.4.2.jar
 
 DATE=`git log -1 | grep Date: | sed 's/[^:]*: *//'`
 
-all: jquery test min
+all: jquery min
 	@@echo "jQuery build complete."
 
 ${DIST_DIR}:
 	@@mkdir -p ${DIST_DIR}
 
-jquery: ${DIST_DIR} ${JQ}
+init:
+	@@echo "Grabbing external dependencies..."
+	@@git submodule init
+	@@git submodule update
+
+jquery: ${DIST_DIR} selector ${JQ}
 
 ${JQ}: ${MODULES}
 	@@echo "Building" ${JQ}
 
 	@@mkdir -p ${DIST_DIR}
+
 	@@cat ${MODULES} | \
 		sed 's/Date:./&'"${DATE}"'/' | \
 		${VER} > ${JQ};
@@ -52,6 +57,10 @@ ${JQ}: ${MODULES}
 	@@echo ${JQ} "Built"
 	@@echo
 
+selector: init
+	@@echo "Building selector code from Sizzle"
+	@@sed '/EXPOSE/r src/sizzle-jquery.js' src/sizzle/sizzle.js > src/selector.js
+
 min: ${JQ_MIN}
 
 ${JQ_MIN}: ${JQ}
@@ -63,13 +72,9 @@ ${JQ_MIN}: ${JQ}
 	@@echo ${JQ_MIN} "Built"
 	@@echo
 
-test: ${JQ}
-	@@echo "Building Test Suite"
-	@@echo "Test Suite Built"
-	@@echo
-	git submodule init
-	git submodule update
-
 clean:
 	@@echo "Removing Distribution directory:" ${DIST_DIR}
 	@@rm -rf ${DIST_DIR}
+
+	@@echo "Removing built copy of Sizzle"
+	@@rm src/selector.js

README

@@ -24,11 +24,14 @@ What you need to build your own jQuery:
 How to build your own jQuery:
 
 In the main directory of the distribution (the one that this file is in), type
-the following to make all versions of jQuery, the documentation, and the test suite:
+the following to make all versions of jQuery:
   make
 
 Here are each of the individual items that are buildable from the Makefile.
 
+make init
+	Pull in all the external dependencies (QUnit, Sizzle) for the project.
+
 make jquery
   The standard, uncompressed, jQuery code.
   Makes: ./dist/jquery.js
@@ -37,10 +40,9 @@ make min
   A compressed version of jQuery (made the YUI Minifier).
   Makes: ./dist/jquery.min.js
 
-make test
-  Makes sure that the QUnit submodule is properly checked out.
-  Open this file in your browser:
-    ./test/index.html
+make selector
+	Builds the selector library for jQuery from Sizzle.
+	Makes: ./src/selector.js
 
 Finally, you can remove all the built files using the command:
   make clean

src/sizzle

@@ -0,0 +1 @@
+Subproject commit 3e97c27d19e18c984a29bfea89fcccadf3544fb3

src/sizzle-jquery.js

@@ -0,0 +1,6 @@
+jQuery.find = Sizzle;
+jQuery.expr = Sizzle.selectors;
+jQuery.expr[":"] = jQuery.expr.filters;
+jQuery.unique = Sizzle.uniqueSort;
+
+return;