libtool: normalize link paths before considering for RPATH

Libtool may be passed link paths of the form "/usr/lib/../lib", which
fool its detection code into thinking it should be included as an
RPATH in the generated binary.  Normalize before comparision.

Signed-off-by: Andy Ross <andy.ross@windriver.com>
Upstream-Status: Pending

Updated by: Robert Yang <liezhi.yang@windriver.com>

diff -ur a/build-aux/ltmain.in b/build-aux/ltmain.in
--- a/build-aux/ltmain.in	2012-08-16 13:58:55.058900363 -0700
+++ b/build-aux/ltmain.in	2012-08-22 11:01:34.191345989 -0700
@@ -7288,8 +7288,10 @@
 	      else
                 # We only want to hardcode in an rpath if it isn't in the
                 # default dlsearch path.
+                func_normal_abspath "$libdir"
+                libdir_norm=$func_normal_abspath_result
 	        case " $sys_lib_dlsearch_path " in
-	        *" $libdir "*) ;;
+	        *" $libdir_norm "*) ;;
 	        *) eval flag=\"$hardcode_libdir_flag_spec\"
                    func_append dep_rpath " $flag"
                    ;;
@@ -8027,8 +8029,10 @@
 	  else
             # We only want to hardcode in an rpath if it isn't in the
             # default dlsearch path.
+            func_normal_abspath "$libdir"
+            libdir_norm=$func_normal_abspath_result
 	    case " $sys_lib_dlsearch_path " in
-	    *" $libdir "*) ;;
+	    *" $libdir_norm "*) ;;
 	    *) eval flag=\"$hardcode_libdir_flag_spec\"
                rpath+=" $flag"
                ;;