Fail to make mingw ruby (ruby_1_9_1) in Cygwin

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Cygwine$B$N4D6-$G!"e(BCC=‘gcc -mno-cygwin’ e$B$Ge(B mingwe$BHGe(B Ruby
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make e$B$7$h$&$H$9$k$HESCf$G<:GT$7$^$9!#e(B
miniruby.exe e$B$O$G$-$F$^$9!#e(B

ruby_1_9_1 e$B$NOC$G$9!#e(B

C:\cygwin\home\suke\work\ruby\bin-mingw-1_9_1\miniruby.exe: No such file
or directory – /home/svn/ruby/branches/ruby_1_9_1/mkconfig.rb
(LoadError)
make: *** [.rbconfig.time] Error 1

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