To the mswin version freaks,

I'm happy to report that I've succeeded to build ruby linked
to msvcrt.dll by using VC9.
Thes means that now we are librated from the runtime hell.

Requirement:
  * of course, VC9 (VS2008, all edition)
  * WDK (Windows Driver Kit; you can download it from Microsoft's
    site)
  * ruby trunk HEAD

How:
  (0) install VC9 and WDK.
  (1) run vcvarsall.bat of VC9 to set some environment variables.
  (2) insert "(full path of WDK)\inc\crt" to the top of INCLUDE
      environment variable, and also insert "(full path of WDK)\lib\crt\i386"
      to the top of LIB environment variable.
  (3) run win32/configure.bat && nmake

Problems:
  When building ruby, You might frequently witness the crash
  of miniruby.
  In such case, please repert to run nmake patiently.
  The crash is not the problem of this process.  You can see
  it with clean VC6-VC9 :)


Regards,
-- 
U.Nakamura <usa / garbagecollect.jp>