diff -up OOO300_m9/config_office/configure.in.orig OOO300_m9.old3/config_office/configure.in
--- OOO300_m9/config_office/configure.in.orig	2008-12-18 10:51:57.000000000 +0100
+++ OOO300_m9/config_office/configure.in	2008-12-18 10:52:26.000000000 +0100
@@ -4320,7 +4320,11 @@ else
 fi
 AC_SUBST(XINC)
 if test "$x_libraries" = "default_x_libraries"; then
-   XLIB="/usr/lib"
+   if test "$build_cpu" = "x86_64" -o "$build_cpu" = "powerpc64"; then
+      XLIB="/usr/lib64 /usr/lib"
+   else
+      XLIB="/usr/lib"
+   fi
 else
    XLIB="$x_libraries"
 fi