configure dosen't find GTK+

[Roberto & Tracy Moral <telmo erols com>]

Hi there, I'm new to this list:

I'm having a problem with GTK+-1.1.1[1-3], After ./configure; make ; make install, everything looks perfect, make dosen't complain too much about anything and everything looks to be install the problem is when I try to run the configure in Imlib and/or the gnome-libs. 
I downloaded everything from ftp.gnome.org, from the directory latest, so it should be all up to date. My problem is:

---------- configure output -------------------
checking whether we are using GNU C... (cached) yes
checking whether gcc accepts -g... (cached) yes
checking for gtk-config... /usr/local/bin/gtk-config
checking for GTK - version >= 1.1.9... no
*** Could not run GTK test program, checking why...
*** The test program failed to compile or link. See the file config.log for the
*** exact error that occured. This usually means GTK was incorrectly installed
*** or that you have moved GTK since it was installed. In the latter case, you
*** may want to edit the gtk-config script: /usr/local/bin/gtk-config
configure: warning: *** gdk_imlib will not be built ***
no
checking for djpeg... /usr/local/bin/djpeg
checking for cjpeg... /usr/local/bin/cjpeg
checking for convert... /usr/local/bin/convert

----------- more configure output ------------------

system check........

darkstar:~# /usr/local/bin/gtk-config --version
1.1.12
darkstar:~# /usr/local/bin/gtk-config --libs
-L/usr/local/lib -L/usr/X11R6/lib -lgtk -lgdk -rdynamic -lgmodule  -lglib
-ldl -lXext -lX11 -lm
darkstar:~# ldconfig -p |grep gtk
libgtk.so (libc5) => /usr/local/lib/libgtk.so
libgtk-1.1.so.13 (libc5) => /usr/local/lib/libgtk-1.1.so.13
libgtk-1.1.so.11 (libc5) => /usr/local/lib/libgtk-1.1.so.11
darkstar:~# ldconfig -v |grep gtk
libgtk-1.1.so.11 => libgtk-1.1.so.11.0.1
libgtk-1.1.so.13 => libgtk-1.1.so.13.0.0
darkstar:~#
darkstar:~# uname -a
Linux darkstar 2.0.36 #80 Mon Nov 30 08:31:09 CST 1998 i686 unknown
darkstar:~#

I installed 3 diferents versions of GTK 1.1.11, 1.1.12, 1.1.13 but no luck so far.
My system is Slackware 3.6 runing a kernel 2.0.36.

I tried telling to GTK ./configure --prefix=/usr/local

and then in Imlib/gnome ./configure --with-gtk-dir=/usr/local

but it didn't work.

Anybody out there that knows what is going on and can help me please?

Thank you.

Telmo.