diff --git a/win32/configure.bat b/win32/configure.bat
index f760f79618..a636da08ab 100755
--- a/win32/configure.bat
+++ b/win32/configure.bat
@@ -1,223 +1,223 @@
-@echo off
-@setlocal disabledelayedexpansion
-set witharg=
-
-for %%I in (%0) do if /%%~dpI/ == /%CD%\/ (
-    echo don't run in win32 directory.
-    exit /b 999
-)
-
-echo> ~tmp~.mak ####
-echo>> ~tmp~.mak conf = %0
-echo>> ~tmp~.mak $(conf): nul
-echo>> ~tmp~.mak 	@del ~setup~.mak
-echo>> ~tmp~.mak 	@-$(MAKE) -l$(MAKEFLAGS) -f $(@D)/setup.mak \
-if exist pathlist.tmp del pathlist.tmp
-echo>confargs.tmp #define CONFIGURE_ARGS \
-:loop
-set opt=%1
-if "%1" == "" goto :end
-if "%1" == "--prefix" goto :prefix
-if "%1" == "--srcdir" goto :srcdir
-if "%1" == "srcdir" goto :srcdir
-if "%1" == "--target" goto :target
-if "%1" == "target" goto :target
-if "%1" == "--with-static-linked-ext" goto :extstatic
-if "%1" == "--program-prefix" goto :pprefix
-if "%1" == "--program-suffix" goto :suffix
-if "%1" == "--program-name" goto :installname
-if "%1" == "--install-name" goto :installname
-if "%1" == "--so-name" goto :soname
-if "%1" == "--enable-install-doc" goto :enable-rdoc
-if "%1" == "--disable-install-doc" goto :disable-rdoc
-if "%1" == "--enable-debug-env" goto :enable-debug-env
-if "%1" == "--disable-debug-env" goto :disable-debug-env
-if "%1" == "--enable-rubygems" goto :enable-rubygems
-if "%1" == "--disable-rubygems" goto :disable-rubygems
-if "%1" == "--extout" goto :extout
-if "%1" == "--path" goto :path
-if "%1" == "--with-baseruby" goto :baseruby
-if "%1" == "--with-ntver" goto :ntver
-if "%1" == "--with-libdir" goto :libdir
-if "%1" == "--without-ext" goto :witharg
-if "%1" == "--without-extensions" goto :witharg
-if "%opt:~0,10%" == "--without-" goto :withoutarg
-if "%opt:~0,7%" == "--with-" goto :witharg
-if "%1" == "-h" goto :help
-if "%1" == "--help" goto :help
-  if "%opt:~0,1%" == "-" (
-    echo>>confargs.tmp  %1 \
-    set witharg=
-  ) else if "%witharg" == "" (
-    echo>>confargs.tmp  %1 \
-  ) else (
-    echo>>confargs.tmp ,%1\
-  )
-  shift
-goto :loop
-:srcdir
-  echo>> ~tmp~.mak 	"srcdir=%~2" \
-  echo>>confargs.tmp --srcdir=%2 \
-  shift
-  shift
-goto :loop
-:prefix
-  echo>> ~tmp~.mak 	"prefix=%~2" \
-  echo>>confargs.tmp  %1=%2 \
-  shift
-  shift
-goto :loop
-:pprefix
-  echo>> ~tmp~.mak 	"PROGRAM_PREFIX=%~2" \
-  echo>>confargs.tmp  %1=%2 \
-  shift
-  shift
-goto :loop
-:suffix
-  echo>> ~tmp~.mak 	"PROGRAM_SUFFIX=%~2" \
-  echo>>confargs.tmp  %1=%2 \
-  shift
-  shift
-goto :loop
-:installname
-  echo>> ~tmp~.mak 	"RUBY_INSTALL_NAME=%~2" \
-  echo>>confargs.tmp  %1=%2 \
-  shift
-  shift
-goto :loop
-:soname
-  echo>> ~tmp~.mak 	"RUBY_SO_NAME=%~2" \
-  echo>>confargs.tmp  %1=%2 \
-  shift
-  shift
-goto :loop
-:target
-  echo>> ~tmp~.mak 	"%~2" \
-  echo>>confargs.tmp --target=%2 \
-  if "%~2" == "x64-mswin64" goto target2
-  if NOT "%~2" == "ia64-mswin64" goto target3
-:target2
-  echo>> ~tmp~.mak 	"TARGET_OS=mswin64" \
-:target3
-  shift
-  shift
-goto :loop
-:extstatic
-  echo>> ~tmp~.mak 	"EXTSTATIC=static" \
-  echo>>confargs.tmp %1 \
-  shift
-goto :loop
-:enable-rdoc
-  echo>> ~tmp~.mak 	"RDOCTARGET=rdoc" \
-  echo>>confargs.tmp %1 \
-  shift
-goto :loop
-:disable-rdoc
-  echo>> ~tmp~.mak 	"RDOCTARGET=nodoc" \
-  echo>>confargs.tmp %1 \
-  shift
-goto :loop
-:enable-debug-env
-  echo>> ~tmp~.mak 	"ENABLE_DEBUG_ENV=yes" \
-  echo>>confargs.tmp %1 \
-  shift
-goto :loop
-:disable-debug-env
-  echo>> ~tmp~.mak 	"ENABLE_DEBUG_ENV=no" \
-  echo>>confargs.tmp %1 \
-  shift
-goto :loop
-:enable-rubygems
-  echo>> ~tmp~.mak 	"USE_RUBYGEMS=YES" \
-  echo>>confargs.tmp %1 \
-  shift
-goto :loop
-:disable-rubygems
-  echo>> ~tmp~.mak 	"USE_RUBYGEMS=NO" \
-  echo>>confargs.tmp %1 \
-  shift
-goto :loop
-:ntver
-  echo>> ~tmp~.mak 	"NTVER=%~2" \
-  echo>>confargs.tmp  %1=%2 \
-  shift
-  shift
-goto :loop
-:extout
-  echo>> ~tmp~.mak 	"EXTOUT=%~2" \
-  echo>>confargs.tmp  %1=%2 \
-  shift
-  shift
-goto :loop
-:path
-  echo>>pathlist.tmp %~2;\
-  echo>>confargs.tmp  %1=%2 \
-  shift
-  shift
-goto :loop
-:baseruby
-  echo>> ~tmp~.mak 	"BASERUBY=%~2" \
-  echo>>confargs.tmp  %1=%2 \
-  shift
-  shift
-goto :loop
-:libdir
-  echo>> ~tmp~.mak 	"libdir_basename=%~2" \
-  echo>>confargs.tmp  %1=%2 \
-  shift
-  shift
-goto :loop
-:witharg
-  echo>>confargs.tmp  %1=%2\
-  set witharg=1
-  shift
-  shift
-goto :loop
-:withoutarg
-  echo>>confargs.tmp  %1 \
-  shift
-goto :loop
-:help
-  echo Configuration:
-  echo   --help                  display this help
-  echo   --srcdir=DIR            find the sources in DIR [configure dir or `..']
-  echo Installation directories:
-  echo   --prefix=PREFIX         install files in PREFIX [/usr]
-  echo System types:
-  echo   --target=TARGET         configure for TARGET [i386-mswin32]
-  echo Optional Package:
-  echo   --with-baseruby=RUBY    use RUBY as baseruby [ruby]
-  echo   --with-static-linked-ext link external modules statically
-  echo   --with-ext="a,b,..."    use extensions a, b, ...
-  echo   --without-ext="a,b,..." ignore extensions a, b, ...
-  echo   --disable-install-doc   do not install rdoc indexes during install
-  echo   --with-ntver=0xXXXX     target NT version (shouldn't use with old SDK)
-  del *.tmp
-  del ~tmp~.mak
-goto :exit
-:end
-echo>> ~tmp~.mak 	WIN32DIR=$(@D:\=/)
-echo.>>confargs.tmp
-echo>confargs.c #define $ $$ 
-echo>>confargs.c !ifndef CONFIGURE_ARGS
-type>>confargs.c confargs.tmp
-echo>>confargs.c configure_args = CONFIGURE_ARGS
-echo>>confargs.c !endif
-echo>>confargs.c #undef $
-if exist pathlist.tmp echo>>confargs.c #define PATH_LIST \
-if exist pathlist.tmp type>>confargs.c pathlist.tmp
-if exist pathlist.tmp echo.>>confargs.c
-if exist pathlist.tmp echo>>confargs.c pathlist = PATH_LIST
-cl -EP confargs.c > ~setup~.mak 2>nul
-if exist pathlist.tmp echo>>~setup~.mak PATH = $(pathlist:;=/bin;)$(PATH)
-if exist pathlist.tmp echo>>~setup~.mak INCLUDE = $(pathlist:;=/include;)
-if exist pathlist.tmp echo>>~setup~.mak LIB = $(pathlist:;=/lib;)
-type>>~setup~.mak ~tmp~.mak
-del *.tmp > nul
-del ~tmp~.mak > nul
-echo>>~setup~.mak 	@if exist Makefile.old del Makefile.old
-echo>>~setup~.mak 	@if exist Makefile ren Makefile Makefile.old
-echo>>~setup~.mak 	@ren Makefile.new Makefile
-nmake -alf ~setup~.mak MAKEFILE=Makefile.new
-:exit
-@endlocal
+@echo off
+@setlocal disabledelayedexpansion
+set witharg=
+
+for %%I in (%0) do if /%%~dpI/ == /%CD%\/ (
+    echo don't run in win32 directory.
+    exit /b 999
+)
+
+echo> ~tmp~.mak ####
+echo>> ~tmp~.mak conf = %0
+echo>> ~tmp~.mak $(conf): nul
+echo>> ~tmp~.mak 	@del ~setup~.mak
+echo>> ~tmp~.mak 	@-$(MAKE) -l$(MAKEFLAGS) -f $(@D)/setup.mak \
+if exist pathlist.tmp del pathlist.tmp
+echo>confargs.tmp #define CONFIGURE_ARGS \
+:loop
+set opt=%1
+if "%1" == "" goto :end
+if "%1" == "--prefix" goto :prefix
+if "%1" == "--srcdir" goto :srcdir
+if "%1" == "srcdir" goto :srcdir
+if "%1" == "--target" goto :target
+if "%1" == "target" goto :target
+if "%1" == "--with-static-linked-ext" goto :extstatic
+if "%1" == "--program-prefix" goto :pprefix
+if "%1" == "--program-suffix" goto :suffix
+if "%1" == "--program-name" goto :installname
+if "%1" == "--install-name" goto :installname
+if "%1" == "--so-name" goto :soname
+if "%1" == "--enable-install-doc" goto :enable-rdoc
+if "%1" == "--disable-install-doc" goto :disable-rdoc
+if "%1" == "--enable-debug-env" goto :enable-debug-env
+if "%1" == "--disable-debug-env" goto :disable-debug-env
+if "%1" == "--enable-rubygems" goto :enable-rubygems
+if "%1" == "--disable-rubygems" goto :disable-rubygems
+if "%1" == "--extout" goto :extout
+if "%1" == "--path" goto :path
+if "%1" == "--with-baseruby" goto :baseruby
+if "%1" == "--with-ntver" goto :ntver
+if "%1" == "--with-libdir" goto :libdir
+if "%1" == "--without-ext" goto :witharg
+if "%1" == "--without-extensions" goto :witharg
+if "%opt:~0,10%" == "--without-" goto :withoutarg
+if "%opt:~0,7%" == "--with-" goto :witharg
+if "%1" == "-h" goto :help
+if "%1" == "--help" goto :help
+  if "%opt:~0,1%" == "-" (
+    echo>>confargs.tmp  %1 \
+    set witharg=
+  ) else if "%witharg" == "" (
+    echo>>confargs.tmp  %1 \
+  ) else (
+    echo>>confargs.tmp ,%1\
+  )
+  shift
+goto :loop
+:srcdir
+  echo>> ~tmp~.mak 	"srcdir=%~2" \
+  echo>>confargs.tmp --srcdir=%2 \
+  shift
+  shift
+goto :loop
+:prefix
+  echo>> ~tmp~.mak 	"prefix=%~2" \
+  echo>>confargs.tmp  %1=%2 \
+  shift
+  shift
+goto :loop
+:pprefix
+  echo>> ~tmp~.mak 	"PROGRAM_PREFIX=%~2" \
+  echo>>confargs.tmp  %1=%2 \
+  shift
+  shift
+goto :loop
+:suffix
+  echo>> ~tmp~.mak 	"PROGRAM_SUFFIX=%~2" \
+  echo>>confargs.tmp  %1=%2 \
+  shift
+  shift
+goto :loop
+:installname
+  echo>> ~tmp~.mak 	"RUBY_INSTALL_NAME=%~2" \
+  echo>>confargs.tmp  %1=%2 \
+  shift
+  shift
+goto :loop
+:soname
+  echo>> ~tmp~.mak 	"RUBY_SO_NAME=%~2" \
+  echo>>confargs.tmp  %1=%2 \
+  shift
+  shift
+goto :loop
+:target
+  echo>> ~tmp~.mak 	"%~2" \
+  echo>>confargs.tmp --target=%2 \
+  if "%~2" == "x64-mswin64" goto target2
+  if NOT "%~2" == "ia64-mswin64" goto target3
+:target2
+  echo>> ~tmp~.mak 	"TARGET_OS=mswin64" \
+:target3
+  shift
+  shift
+goto :loop
+:extstatic
+  echo>> ~tmp~.mak 	"EXTSTATIC=static" \
+  echo>>confargs.tmp %1 \
+  shift
+goto :loop
+:enable-rdoc
+  echo>> ~tmp~.mak 	"RDOCTARGET=rdoc" \
+  echo>>confargs.tmp %1 \
+  shift
+goto :loop
+:disable-rdoc
+  echo>> ~tmp~.mak 	"RDOCTARGET=nodoc" \
+  echo>>confargs.tmp %1 \
+  shift
+goto :loop
+:enable-debug-env
+  echo>> ~tmp~.mak 	"ENABLE_DEBUG_ENV=yes" \
+  echo>>confargs.tmp %1 \
+  shift
+goto :loop
+:disable-debug-env
+  echo>> ~tmp~.mak 	"ENABLE_DEBUG_ENV=no" \
+  echo>>confargs.tmp %1 \
+  shift
+goto :loop
+:enable-rubygems
+  echo>> ~tmp~.mak 	"USE_RUBYGEMS=YES" \
+  echo>>confargs.tmp %1 \
+  shift
+goto :loop
+:disable-rubygems
+  echo>> ~tmp~.mak 	"USE_RUBYGEMS=NO" \
+  echo>>confargs.tmp %1 \
+  shift
+goto :loop
+:ntver
+  echo>> ~tmp~.mak 	"NTVER=%~2" \
+  echo>>confargs.tmp  %1=%2 \
+  shift
+  shift
+goto :loop
+:extout
+  echo>> ~tmp~.mak 	"EXTOUT=%~2" \
+  echo>>confargs.tmp  %1=%2 \
+  shift
+  shift
+goto :loop
+:path
+  echo>>pathlist.tmp %~2;\
+  echo>>confargs.tmp  %1=%2 \
+  shift
+  shift
+goto :loop
+:baseruby
+  echo>> ~tmp~.mak 	"BASERUBY=%~2" \
+  echo>>confargs.tmp  %1=%2 \
+  shift
+  shift
+goto :loop
+:libdir
+  echo>> ~tmp~.mak 	"libdir_basename=%~2" \
+  echo>>confargs.tmp  %1=%2 \
+  shift
+  shift
+goto :loop
+:witharg
+  echo>>confargs.tmp  %1=%2\
+  set witharg=1
+  shift
+  shift
+goto :loop
+:withoutarg
+  echo>>confargs.tmp  %1 \
+  shift
+goto :loop
+:help
+  echo Configuration:
+  echo   --help                  display this help
+  echo   --srcdir=DIR            find the sources in DIR [configure dir or `..']
+  echo Installation directories:
+  echo   --prefix=PREFIX         install files in PREFIX [/usr]
+  echo System types:
+  echo   --target=TARGET         configure for TARGET [i386-mswin32]
+  echo Optional Package:
+  echo   --with-baseruby=RUBY    use RUBY as baseruby [ruby]
+  echo   --with-static-linked-ext link external modules statically
+  echo   --with-ext="a,b,..."    use extensions a, b, ...
+  echo   --without-ext="a,b,..." ignore extensions a, b, ...
+  echo   --disable-install-doc   do not install rdoc indexes during install
+  echo   --with-ntver=0xXXXX     target NT version (shouldn't use with old SDK)
+  del *.tmp
+  del ~tmp~.mak
+goto :exit
+:end
+echo>> ~tmp~.mak 	WIN32DIR=$(@D:\=/)
+echo.>>confargs.tmp
+echo>confargs.c #define $ $$ 
+echo>>confargs.c !ifndef CONFIGURE_ARGS
+type>>confargs.c confargs.tmp
+echo>>confargs.c configure_args = CONFIGURE_ARGS
+echo>>confargs.c !endif
+echo>>confargs.c #undef $
+if exist pathlist.tmp echo>>confargs.c #define PATH_LIST \
+if exist pathlist.tmp type>>confargs.c pathlist.tmp
+if exist pathlist.tmp echo.>>confargs.c
+if exist pathlist.tmp echo>>confargs.c pathlist = PATH_LIST
+cl -EP confargs.c > ~setup~.mak 2>nul
+if exist pathlist.tmp echo>>~setup~.mak PATH = $(pathlist:;=/bin;)$(PATH)
+if exist pathlist.tmp echo>>~setup~.mak INCLUDE = $(pathlist:;=/include;)
+if exist pathlist.tmp echo>>~setup~.mak LIB = $(pathlist:;=/lib;)
+type>>~setup~.mak ~tmp~.mak
+del *.tmp > nul
+del ~tmp~.mak > nul
+echo>>~setup~.mak 	@if exist Makefile.old del Makefile.old
+echo>>~setup~.mak 	@if exist Makefile ren Makefile Makefile.old
+echo>>~setup~.mak 	@ren Makefile.new Makefile
+nmake -alf ~setup~.mak MAKEFILE=Makefile.new
+:exit
+@endlocal