netcdf: prevent bogus runtime dependency on gcc

Installation includes the the captured compilation settings in the
outputs, and the full gcc path then leads to a bogus runtime
dependency. To defeat this, we remove any occurrences of the
compiler's store dir prefix from this file after installation.

pkgs/development/libraries/netcdf/default.nix

@@ -3,6 +3,7 @@
 , hdf5
 , m4
 , curl # for DAP
+, removeReferencesTo
 }:
 
 let
@@ -26,7 +27,7 @@ in stdenv.mkDerivation rec {
     done
   '';
 
-  nativeBuildInputs = [ m4 ];
+  nativeBuildInputs = [ m4 removeReferencesTo ];
   buildInputs = [ hdf5 curl mpi ];
 
   passthru = {
@@ -42,6 +43,12 @@ in stdenv.mkDerivation rec {
   ]
   ++ (stdenv.lib.optionals mpiSupport [ "--enable-parallel-tests" "CC=${mpi}/bin/mpicc" ]);
 
+  disallowedReferences = [ stdenv.cc ];
+
+  postFixup = ''
+    remove-references-to -t ${stdenv.cc} "$(readlink -f $out/lib/libnetcdf.settings)"
+  '';
+
   doCheck = !mpiSupport;
 
   meta = {