title: Unable to compile simple c program in Linux Mint 15
body: <p>I am a Linux Mint 15 User.<br>
  i wanted to write simple program in C.<br>
  Below is my code.(hw.c)  </p>
  
  <pre><code>#include&lt;stdio.h&gt;
  #include&lt;conio.h&gt;
  int main()
  {
      printf("Hello World");
  }
  </code></pre>
  
  <p>But, when i try to compile it with gcc  </p>
  
  <pre><code>gcc -o hw hw.c
  </code></pre>
  
  <p>it gives me an error  </p>
  
  <pre><code>hw.c:1:18: fatal error: stdio.h: No such file or directory
  compilation terminated.
  </code></pre>
  
  <p>I googled and found some solutions which say to install <code>build-essential</code><br>
  and tried to install it  </p>
  
  <pre><code>sudo apt-get install build-essintial
  </code></pre>
  
  <p>but it gives an error again. 
  The error is  </p>
  
  <pre><code>    Some packages could not be installed. This may mean that you have
  requested an impossible situation or if you are using the unstable
  distribution that some required packages have not yet been created
  or been moved out of Incoming.
  The following information may help to resolve the situation:
  
  The following packages have unmet dependencies:
   build-essential : Depends: libc6-dev but it is not going to be installed or
                              libc-dev
                     Depends: g++ (&gt;= 4:4.4.3) but it is not going to be installed
                     Depends: dpkg-dev (&gt;= 1.13.5) but it is not going to be installed
  E: Unable to correct problems, you have held broken packages.
  </code></pre>
  
  <p><strong>So what is wrong? What is the problem?<br>
  How to solve it?</strong></p>
  
  <p>PS.
  The result of <code>locate stdio.h</code> is  </p>
  
  <pre><code>/usr/lib/perl/5.14.2/CORE/nostdio.h
  /usr/lib/syslinux/com32/include/stdio.h
  </code></pre>