{libcss, libdom}: set propagatedBuildInputs

The generated *.pc files list these libs in Requires, so propagate them.
This avoids repeating the same dependencies in every consumer.

pkgs/by-name/li/libcss/package.nix

@@ -41,6 +41,9 @@ stdenv.mkDerivation (finalAttrs: {
   buildInputs = [
     perl
     netsurf-buildsystem
+  ];
+
+  propagatedBuildInputs = [
     libparserutils
     libwapcaplet
   ];

pkgs/by-name/li/libdom/package.nix

@@ -35,8 +35,11 @@ stdenv.mkDerivation (finalAttrs: {
   buildInputs = [
     expat
     netsurf-buildsystem
-    libhubbub
     libparserutils
+  ];
+
+  propagatedBuildInputs = [
+    libhubbub
     libwapcaplet
   ];