Pb. Gtk+-1.2.2 on HP (HPUX 9.07)

[Laurent SAUVEBOIS <laurent mecalog fr>]

hello,

when we try to compile gtk+-1.2.2 on HP (HPUX 9.07), we get this error :

gcc -DHAVE_CONFIG_H -I. -I. -I.. -DG_LOG_DOMAIN=\"Gdk\" -I..
-DGTK_NO_CHECK_CASTS -DUSE_XIM -I/usr/local/lib/glib/include
-I/usr/local/include -I/usr/include/X11R5 -O2 -Wall -c  -fPIC -DPIC
gdk.c -o .libs/gdk.lo
gdk.c:44: X11/Xmu/WinUtil.h: No such file or directory
*** Error code 1


does anyone know, if this is a pb on our machine, or a general HP pb, or
a gtk+ bug ?

thank's for your help,

Laurent