error: gtk/gtk.h f file is not exist, how to set path

[jivanr]

I downloaded one simple gtk+ project.
If I try to comiple that c file, am getting error like:
gtk/gtk.h file is not exist.

How can I know whether GTK+ installed or not.
And how can I set path.

thanking you,

Regards
Jeevan

[cyberinstru]

1. Check if you have GTK-devel installed. Do ls /usr/include/gtk* and check for gtk-1.0 or gtk-2.0 directory.

2. If you have that directory, ensure that while compiling, all the required compile options are present.