ant build 出错Android build.xml renderscript doesn't support includepath

ANT build的时候出现了如下错误：

renderscript doesn't support the "includePath" attribute

这是因为将adt版本更新到了 20.0.1.的缘故。所以做以下修改：

将build.xml里的如下代码：

 <renderscript executable="${renderscript}"                includePath="${android.renderscript.include.path}"                genFolder="${gen.absolute.dir}"                resFolder="${out.res.absolute.dir}/raw"                targetApi="${project.minSdkVersion}"                optLevel="${renderscript.opt.level}"                buildType="${build.is.packaging.debug}"                previousBuildType="${build.last.is.packaging.debug}">            <source path="${source.absolute.dir}"/>        </renderscript>
更改如下：

<renderscript executable="${renderscript}"            includePathRefId="android.renderscript.include.path"            genFolder="${gen.absolute.dir}"            resFolder="${out.res.absolute.dir}/raw"            targetApi="${project.minSdkVersion}"            optLevel="${renderscript.opt.level}"            buildType="${build.is.packaging.debug}"            previousBuildType="${build.last.is.packaging.debug}">        <source path="${source.absolute.dir}"/>    </renderscript>
然后将build.xml里的如下代码：

<path id="android.renderscript.include.path">        <pathelement location="${android.platform.tools.dir}/renderscript/include" />        <pathelement location="${android.platform.tools.dir}/renderscript/clang-include" />    </path>

修改如下：

<path id="android.renderscript.include.path">    <pathelement location="${android.platform.tools.dir}/renderscript/include" />    <pathelement location="${android.platform.tools.dir}/renderscript/clang-include" /></path>

保存后重新ant build就ok了。