title: gio.h no such file or directory
body: <p>I am trying to compile the GIO example program code at here on <a href="http://developer.gnome.org/gio/stable/GDBusServer.html" rel="nofollow">developer.gnome.org</a> link. And the command I am using to compile it is</p>
  
  <pre><code>    g++ gdbserver.cpp `pkg-config glib-2.0 --libs --cflags gtk+-2.0 gio-unix-2.0`
  </code></pre>
  
  <p>But an error message</p>
  
  <pre><code>    package gio-unix-2.0 was not found in the pkg-config search path
      (... the remaining pkg-config message ...)
      error: gio/gio.h: No such file or directory
      (... other g++ error messages ...)
  </code></pre>
  
  <p>glib and glib-devel are installed ( I think GIO comes with glib, right?)
  Is there a mistake I am doing here.</p>
  
  <p>edit : The centos5.5 I am using (I am supposed to use it) has glib2 version 2.12 and only glib2 with version 2.15 or higher come along with GIO. I am not sure how to install GIO seperately.</p>