How to use GString

[Petr Hracek <phracek terra cz>]

Hi all,

Can you help me how I can use GString?
In my program I have following code:

#include <glib.h>
GString sTemp;
char * temp;
temp = "hello";
sTemp = g_string_new(temp);

when I want to compile this code, make file show me  that  on line 
g_string_new
is error.

Where I can have mistake.

Best regards
Petr