title: Cannot compile: unknown type name 'string'
body: <p>I have a simple C program:</p>
  
  <pre><code>#include &lt;stdio.h&gt;
  #include &lt;stdlib.h&gt;
  #include &lt;string.h&gt;
  #include &lt;ctype.h&gt;
  
  int main(int argCount, string args[])
  {
   // ....
  }
  </code></pre>
  
  <p>My make file is:</p>
  
  <pre><code>TARGET = test
  all: $(TARGET)
  $(TARGET): $(TARGET).c
       cc -g -std=gnu99 -o $(TARGET).out $(TARGET).c -lm
  </code></pre>
  
  <p>It gives a compilation error: unknown type name 'string' at the args parameter of main.</p>
  
  <p>What else must be included to be able to use string?</p>