Windows: Always set the system timer resolution to 1ms by default.

An existing hint lets apps that don't need the timer resolution changed avoid
this, to save battery, etc, but this fixes several problems in timing, audio
callbacks not firing fast enough, etc.

Fixes Bugzilla #2944.

premake/Xcode/build-scripts/build.all.xcode4.i386.command

@@ -0,0 +1,33 @@
+#!/bin/sh
+
+testsTotal=0
+testsPassed=0
+testsFailed=0
+testsSkipped=0
+
+function build() {
+	testsTotal=$(($testsTotal + 1))
+	if [ -d "tests/$1" ]; then
+		"xcodebuild" ARCHS=i386 ONLY_ACTIVE_ARCH=NO -workspace ./SDL.xcworkspace/ -scheme "$1"
+		if [ $? -ne 0 ]; then
+			testsFailed=$(($testsFailed + 1))
+		else
+			testsPassed=$(($testsPassed + 1))
+		fi
+		echo "\033]0;Building: $1\007"
+	else
+		testsSkipped=$(($testsSkipped + 1))
+	fi
+}
+
+# change to directory above command file
+cd `dirname $0`/..
+
+# build all of the tests
+for d in ./tests/*; do
+	build `basename $d`
+done
+
+echo "Build Summary: Total=$testsTotal Passed=$testsPassed Failed=$testsFailed Skipped=$testsSkipped"
+
+cd ..