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-rw-r--r--ext/extmk.rb4
1 files changed, 3 insertions, 1 deletions
diff --git a/ext/extmk.rb b/ext/extmk.rb
index 309baa9b3..8734eae00 100644
--- a/ext/extmk.rb
+++ b/ext/extmk.rb
@@ -399,13 +399,15 @@ if $extension
else
withes, withouts = %w[--with --without].collect {|w|
if not (w = %w[-extensions -ext].collect {|o|arg_config(w+o)}).any?
- proc {false}
+ nil
elsif (w = w.grep(String)).empty?
proc {true}
else
proc {|c1| w.collect {|o| o.split(/,/)}.flatten.any?(&c1)}
end
}
+ withes ||= proc {false}
+ withouts ||= proc {true}
cond = proc {|ext, *|
cond1 = proc {|n| File.fnmatch(n, ext)}
withes.call(cond1) or !withouts.call(cond1)