fixup! build: do not pass vendored headers when building against shared libs

Author: aduh95

tools/nix/ci-shell.nix

@@ -32,7 +32,7 @@ args@{
     # hidden by cc-wrapper's -isystem/-L for every buildInput.
     buildInputs = map (
       dep:
-      pkgs.runCommand "${dep.name}-pkg-config-only"
+      pkgs.runCommand "${dep.name or (baseNameOf (toString dep))}-pkg-config-only"
         {
           nativeBuildInputs = [ pkgs.pkgconf ];
           buildInputs = [ dep ];