dia installation and gtk+

[Nino Novak <nino kflog org>]

I'm trying to install dia. 

although rpm says

  # rpm -q glib
  glib-1.2.8-87
  # rpm -q gtk
  gtk-1.2.8-90

dia fails to install due to <from ./configure:>

checking for GTK - version >= 1.2.0... no
*** The gtk-config script installed by GTK could not be found
*** If GTK was installed in PREFIX, make sure PREFIX/bin is in
*** your path, or set the GTK_CONFIG environment variable to the
*** full path to gtk-config.
checking whether to enable XIM support... yes
checking whether GNOME specific code should be used... no
./configure: glib-config: command not found
checking for poptSetOtherOptionHelp in -lpopt... yes
checking for popt.h... yes
checking for libart-config... no
checking for LIBART - version >= 2.1.0... no
*** The libart-config script installed by LIBART could not be found
*** If LIBART was installed in PREFIX, make sure PREFIX/bin is in
*** your path, or set the LIBART_CONFIG environment variable to the
*** full path to libart-config.
checking for gdk-pixbuf-config... no
checking for GDK_PIXBUF - version >= 0.7.0... no
*** The gdk-pixbuf-config script installed by GDK_PIXBUF could not be found
*** If GDK_PIXBUF was installed in PREFIX, make sure PREFIX/bin is in
*** your path, or set the GDK_PIXBUF_CONFIG environment variable to the
*** full path to gdk-pixbuf-config.
configure: error: gdk-pixbuf >= 0.7.0 is required

About the same ./configure error messages I get when trying to configure 
gdk-pixbuf

who can help?

Nino