title: Using sed from makefile to replace a string with a $ in it
body: <p>I have a simple sed replacement for a text file:</p>
  
  <pre><code>sed -i 's/Temp_3/$t0/g' ./somefile.txt
  </code></pre>
  
  <p>When I use it in a bash script everything <strong>works fine</strong>.
  However, if I try to use the same line <strong>from a makefile</strong>,
  the $t is (probably) expanded into the empty string
  (there is no variable called t in the makefile) and
  Temp_3 is replaced with 0. What is the best way to solve this?
  Thanks!</p>