libtool: prevent libtool to linking against host libs on 'make install'

Signed-off-by: Stephan Raue <stephan@openelec.tv>

packages/devel/libtool/patches/libtool-2.4.2-dont_relink_against_host.patch

@@ -0,0 +1,19 @@
+When using sysroot we should append it to libdir which is helpful in cross builds
+as the system is staged in the sysroot. For normal build i.e. when lt_sysroot is not
+set it will still behave same and add -L/usr/lib to relink command
+
+-Khem
+
+Index: libtool-2.4/libltdl/config/ltmain.m4sh
+===================================================================
+--- libtool-2.4.orig/libltdl/config/ltmain.m4sh
++++ libtool-2.4/libltdl/config/ltmain.m4sh
+@@ -6122,7 +6122,7 @@ func_mode_link ()
+ 	      fi
+ 	    else
+ 	      # We cannot seem to hardcode it, guess we'll fake it.
+-	      add_dir="-L$libdir"
++	      #add_dir="-L$libdir"
+ 	      # Try looking first in the location we're being installed to.
+ 	      if test -n "$inst_prefix_dir"; then
+ 		case $libdir in