merges r21517 and r21519 from trunk into ruby_1_9_1.
configure.in, win32/Makefile.sub (MISSING): added langinfo on mingw and mswin.
encoding.c (rb_locale_charmap): use environments on mingw and mswin.
missing/langinfo.c (nl_langinfo_codeset): MS-Windows Japanese environment uses Windows-31J derived from Shift_JIS, not EUC-JP.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@21565 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Added by yugui (Yuki Sonoda) almost 17 years ago
merges r21517 and r21519 from trunk into ruby_1_9_1.
configure.in, win32/Makefile.sub (MISSING): added langinfo on mingw
and mswin.
encoding.c (rb_locale_charmap): use environments on mingw and mswin.
missing/langinfo.c (nl_langinfo_codeset): MS-Windows Japanese
environment uses Windows-31J derived from Shift_JIS, not EUC-JP.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@21565 b2dd03c8-39d4-4d8f-98ff-823fe69b080e