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-rw-r--r--lib/rdoc/options.rb5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/rdoc/options.rb b/lib/rdoc/options.rb
index 7b3a23ca5c9..90415f0aa44 100644
--- a/lib/rdoc/options.rb
+++ b/lib/rdoc/options.rb
@@ -366,6 +366,11 @@ Usage: #{opt.program_name} [options] [names...]
end
end
+ if @pipe and not argv.empty? then
+ @pipe = false
+ ignored << '-p (with files)'
+ end
+
unless ignored.empty? or quiet then
$stderr.puts "invalid options: #{ignored.join ', '}"
$stderr.puts '(invalid options are ignored)'