regen/embed.pl: Add sanity test for entries

A void returning function should not be required to have its return
value tested.

diff --git a/regen/embed.pl b/regen/embed.pl
index b46f615..cbf421f 100755 (executable)
--- a/regen/embed.pl
+++ b/regen/embed.pl
@@ -76,6 +76,9 @@ my ($embed, $core, $ext, $api) = setup_embed();
        my @names_of_nn;
        my $func;
 
+       if (! $can_ignore && $retval eq 'void') {
+           warn "It is nonsensical to require the return value of a void function ($plain_func) to be checked";
+       }
        my $splint_flags = "";
        if ( $SPLINT && !$commented_out ) {
            $splint_flags .= '/*@noreturn@*/ ' if $never_returns;