Compiling Gecko

Hello.
I tried to compile Gecko but I get the following error:

../../dist/system_wrappers/gtk/gtk.h:3.26: fatal error: gtk/gtk.h: no
such file or directory
#include_next <gtk/gtk.h>

I have these files on my computer:

/usr/include/gtk-2.0/gtk/gtk.h
/usr/include/gtk-3.0/gtk/gtk.h

So, I believe it should work.
I don't know if pkg-config is used to compile Gecko.

I tried on both Arch Linux and Linux Mint Debian Edition and I get the
same error.

What can I do to compile Gecko?

Thanks for your help.