gcc can't find includes for gtk

[Anton Steiner <Anton Steiner aon at>]

Hi there
Sorry for my silly question. 
Since I'v updated my gtk, glib and egcs, gcc can't find the
includes for gtk+ 

compiling eg. button:gtk.c i get following  errormsg:
/tmp/ccNsishQ.o: In function `xpm_label_box':
/tmp/ccNsishQ.o(.text+0xb): undefined reference to `gtk_hbox_new'
/tmp/ccNsishQ.o(.text+0x1a): undefined reference to `gtk_container_get_type'
/tmp/ccNsishQ.o(.text+0x26): undefined reference to `gtk_type_check_object_cast'
.........

I use RH 6.1. gtk+, gtk+-devel, glib, glib-devel are installed (rpm's
for RH)

Many thanks for help

Anton

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