netcdf: fix and enable strictDeps = true (#360690)

pkgs/by-name/ne/netcdf/package.nix

@@ -36,7 +36,11 @@ in stdenv.mkDerivation rec {
       --replace '#!/bin/bash' '${stdenv.shell}'
   '';
 
-  nativeBuildInputs = [ m4 removeReferencesTo ];
+  nativeBuildInputs = [
+    m4
+    removeReferencesTo
+    libxml2 # xml2-config
+  ];
 
   buildInputs = [
     curl
@@ -48,6 +52,8 @@ in stdenv.mkDerivation rec {
     zstd
   ] ++ lib.optional szipSupport szip;
 
+  strictDeps = true;
+
   passthru = {
     inherit mpiSupport mpi;
   };