Silence make program lookup

1 files changed, 7 insertions, 1 deletions

diff --git a/lib/rake/extensiontask.rb b/lib/rake/extensiontask.rb
index 644b6c8..99b3713 100644
--- a/lib/rake/extensiontask.rb
+++ b/lib/rake/extensiontask.rb
@@ -337,12 +337,18 @@ Rerun `rake` under MRI Ruby 1.8.x/1.9.x to cross/native compile.
           if RUBY_PLATFORM =~ /mswin/ then
             'nmake'
           else
-            ENV['MAKE'] || %w[gmake make].find { |c| system(c, '-v') }
+            ENV['MAKE'] || %w[gmake make].find { |c|
+              system("#{c} -v >> #{dev_null} 2>&1")
+            }
           end
       end
       @make
     end
 
+    def dev_null
+      windows? ? 'NUL' : '/dev/null'
+    end
+
     def source_files
      @source_files ||= FileList["#{@ext_dir}/#{@source_pattern}"]
     end