bind: Fix references to openssl in *.la files

Avoids reference to the OpenSSL development headers.

pkgs/servers/dns/bind/default.nix

@@ -36,6 +36,10 @@ stdenv.mkDerivation rec {
   postInstall = ''
     moveToOutput bin/bind9-config $dev
     moveToOutput bin/isc-config.sh $dev
+
+    for f in $out/lib/*.la; do
+      sed -i $f -e 's|-L${openssl.dev}|-L${openssl.out}|g'
+    done
   '';
 
   meta = {