diff -Naurp lesstif-0.95.0/aclocal.m4 lesstif-0.95.0.oden/aclocal.m4
--- lesstif-0.95.0/aclocal.m4	2006-06-10 11:35:23.000000000 +0200
+++ lesstif-0.95.0.oden/aclocal.m4	2008-12-21 16:36:22.000000000 +0100
@@ -567,6 +567,20 @@ x86_64-*linux*|ppc*-*linux*|powerpc*-*li
   rm -rf conftest*
   ;;
 
+*-*-linux*)
+  # Test if the compiler is 64bit
+  echo 'int i;' > conftest.$ac_ext
+  lt_cv_cc_64bit_output=no
+  if AC_TRY_EVAL(ac_compile); then
+    case `/usr/bin/file conftest.$ac_objext` in
+    *"ELF 64"*)
+      lt_cv_cc_64bit_output=yes
+      ;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+  
 *-*-sco3.2v5*)
   # On SCO OpenServer 5, we need -belf to get full-featured binaries.
   SAVE_CFLAGS="$CFLAGS"
@@ -1165,7 +1179,7 @@ shlibpath_var=
 shlibpath_overrides_runpath=unknown
 version_type=none
 dynamic_linker="$host_os ld.so"
-sys_lib_dlsearch_path_spec="/lib /usr/lib"
+sys_lib_dlsearch_path_spec="/lib /usr/lib /usr/X11R6/lib"
 if test "$GCC" = yes; then
   sys_lib_search_path_spec=`$CC -print-search-dirs | grep "^libraries:" | $SED -e "s/^libraries://" -e "s,=/,/,g"`
   if echo "$sys_lib_search_path_spec" | grep ';' >/dev/null ; then
@@ -1178,7 +1192,7 @@ if test "$GCC" = yes; then
     sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED  -e "s/$PATH_SEPARATOR/ /g"`
   fi
 else
-  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib /usr/X11R6/lib"
 fi
 need_lib_prefix=unknown
 hardcode_into_libs=no
@@ -1537,6 +1551,13 @@ linux*)
     sys_lib_dlsearch_path_spec="/lib${libsuff} /usr/lib${libsuff} $lt_ld_extra"
   fi
 
+  case $host_cpu:$lt_cv_cc_64bit_output in
+  powerpc64:yes | s390x:yes | sparc64:yes | x86_64:yes)
+    sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /usr/X11R6/lib64"
+    sys_lib_search_path_spec="/lib64 /usr/lib64 /usr/local/lib64 /usr/X11R6/lib64"
+    ;;
+  esac
+
   # We used to test for /lib/ld.so.1 and disable shared libraries on
   # powerpc, because MkLinux only supported shared libraries with the
   # GNU dynamic linker.  Since this was broken with cross compilers,