Correctly look up for NSID support

* internal LDNS is 1.8.3 so it supports NSID
* external LDNS is unknown, a check is needed

1 files changed, 13 insertions, 10 deletions

diff --git a/Makefile.PL b/Makefile.PL
index 90ae5ca..1a066bd 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -213,12 +213,15 @@ else {
 }
 
 
-# LDNS
+# LDNS and NSID
+
+my $ldns_has_nsid;
 
 if ( $opt_internal_ldns ) {
     print "Feature internal ldns enabled\n";
     cc_libs '-Lldns/lib';
     cc_include_paths 'ldns';
+    $ldns_has_nsid = 1;
 }
 else {
     print "Feature internal ldns disabled\n";
@@ -241,16 +244,16 @@ else {
             function => 'if(LDNS_ED25519) return 0; else return 1;'
         );
     }
-}
 
-# NSID feature requires LDNS version >= 1.8.2
-my $ldns_has_nsid = check_lib(
-    debug    => $opt_debug,
-    lib      => 'ldns',
-    header   => 'ldns/util.h',
-    %{ $assert_lib_args{ldns} },
-    function => 'if ( LDNS_REVISION >= ((1<<16)|(8<<8)|(2)) ) return 0; else return 1;'
-);
+    # NSID feature requires LDNS version >= 1.8.2
+    $ldns_has_nsid = check_lib(
+        debug    => $opt_debug,
+        lib      => 'ldns',
+        header   => 'ldns/util.h',
+        %{ $assert_lib_args{ldns} },
+        function => 'if ( LDNS_REVISION >= ((1<<16)|(8<<8)|(2)) ) return 0; else return 1;'
+    );
+}
 
 if ( $ldns_has_nsid ) {
     print "Feature NSID enabled\n";