Issue #5879 has been reported by Kazuhiro NISHIYAMA.

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Bug #5879: $ignore_error use before set
https://bugs.ruby-lang.org/issues/5879

Author: Kazuhiro NISHIYAMA
Status: Open
Priority: Normal
Assignee: Nobuyoshi Nakada
Category: build
Target version: 2.0.0
ruby -v: ruby 2.0.0dev (2012-01-12 trunk 34271) [x86_64-linux]


lib/mkmf.rb ??? make_makefile ??躥???
    $ignore_error = $nmake ? '' : ' 2> /dev/null || true'                       
??? $ignore_error ???設?????????????????????? make_makefile ??????????????????????
CLEANINGS ???代???? $ignore_error ???使????????????
DISTCLEANDIRS ??? RMDIRS ??? ' 2> /dev/null || true' ?????????????????

?????影???? make realclean ????? Linux ???????rmdir: ???????????????????????????????
Mac OS X ???????usage: rmdir [-p] directory ...????????????????????????????


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