extconf.rb in charguess-1.3.20111021164500

- old
+ new
@@ -1,9 +1,29 @@
 #!/usr/bin/ruby
 require 'rubygems'
 require 'mkmf'
 require 'rake'
 
+# Override the mkmf function to work with Rake >= 0.9.0
+# Rake is patching the rm_f function, which changes its default behavior in
+# a subtle way.  Normally, rm_f could take a list of files to delete and would
+# automatically convert that list into an array.  Rake is extending the file
+# utility functions to add a few default options to every fileutils function.
+# The way the implement this, they add some options to the parameters like:
+#   rm_f args, :option1 => value, :option2 => value, &block
+# thinking that their default options will be merged in with whatever options
+# the caller is also passing into the function so that they will be globbed
+# into one happy hash.  In try_link, rake and mkmf conflict in that both of
+# their expectations for default globbing of arguments are broken when used
+# together.  
+#
+# We fix this by just wrapping the arguments in the call to rm_f into an array.
+def try_link(src, opt="", &b)
+  try_link0(src, opt, &b)
+ensure
+  rm_f ["conftest*", "c0x32*"]
+end  
+
 libcharguess = File.expand_path(File.dirname(__FILE__), "../libcharguess/cpp")
 
 Dir.chdir(libcharguess) do
   sh("./configure")
   sh("make")