win32.c: for strict ANSI
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41836 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
win32.c: for strict ANSI
ANSI mode macro to let _controlfp() stuff defined.
[ruby-core:55312] [Bug #8495]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41836 b2dd03c8-39d4-4d8f-98ff-823fe69b080e