use struts tags inside attributes in jspx files

I have some old jsp code that uses the struts tags inside attributes, like this:

<link href="<s:url value='/styles/layout.css'/>" 
  rel="stylesheet" type="text/css" media="all"/>

I can't get this to work in jspx files though. Is there a good alternative to sort of get the same functionality without too much clutter?

From stackoverflow

• Try this

      <c:set var="myUrl"><s:url value='/styles/layout.css'/></c:set>
      <link href="${myUrl}"/>
  

  You may also want to try this form, but I cannot really remember if it works:

      <s:url value='/styles/layout.css' var="anUrl"/>
      <link href="${anUrl}"/>
  

  wds : Is it then functionally impossible to use the s:url tag inside of the href-tag? There's almost no instances in this code where s:url is called more than once on a page, so that's going to create a host of one-time vars.