libtool_1_5: enable strictDeps

pkgs/development/tools/misc/libtool/default.nix

@@ -18,6 +18,8 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ m4 ];
   buildInputs = [ perl ];
 
+  strictDeps = true;
+
   # Don't fixup "#! /bin/sh" in Libtool, otherwise it will use the
   # "fixed" path in generated files!
   dontPatchShebangs = true;