patch 9.0.1445: openSUSE: configure doesn't find the Motif library

Problem:    openSUSE: configure doesn't find the Motif library. (Tony
            Mechelynck)
Solution:   Also search in /usr/lib64.
diff --git a/src/configure.ac b/src/configure.ac
index ec4141d..0c776a2 100644
--- a/src/configure.ac
+++ b/src/configure.ac
@@ -2976,8 +2976,9 @@
     dnl Ubuntu has libXm.so in /usr/lib/i386-linux-gnu and elsewhere.  The
     dnl linker will figure out which one to use, we only check if one exists.
     dnl Cygwin uses the .dll.a extension.
+    dnl OpenSUSE appears to use /usr/lib64.
     AC_MSG_CHECKING(for location of Motif GUI libs)
-    gui_libs="`echo $x_libraries|sed 's%/[^/][^/]*$%%'` `echo "$gui_XXX" | sed s/XXX/lib/g` /usr/lib/i386-linux-gnu /usr/lib/x86_64-linux-gnu `echo "$GUI_INC_LOC" | sed s/include/lib/` $GUI_LIB_LOC"
+    gui_libs="`echo $x_libraries|sed 's%/[^/][^/]*$%%'` `echo "$gui_XXX" | sed s/XXX/lib/g` /usr/lib64 /usr/lib/i386-linux-gnu /usr/lib/x86_64-linux-gnu `echo "$GUI_INC_LOC" | sed s/include/lib/` $GUI_LIB_LOC"
     GUI_LIB_LOC=
     for try in $gui_libs; do
       for libtry in "$try"/libXm.a "$try"/libXm.dll.a "$try"/libXm.so* "$try"/libXm.sl "$try"/libXm.dylib; do
@@ -2987,8 +2988,10 @@
       done
     done
     if test -n "$GUI_LIB_LOC"; then
-      dnl Remove /usr/lib, it causes trouble on some systems
+      dnl Remove /usr/lib, it causes trouble on some systems.
+      dnl For consistency also remove other standard lib directories.
       if test "$GUI_LIB_LOC" = /usr/lib \
+	   -o "$GUI_LIB_LOC" = /usr/lib64 \
 	   -o "$GUI_LIB_LOC" = /usr/lib/i386-linux-gnu \
 	   -o "$GUI_LIB_LOC" = /usr/lib/x86_64-linux-gnu; then
 	GUI_LIB_LOC=