Hi,

At Sat, 8 Nov 2008 17:29:17 +0900,
Roger Pack wrote in [ruby-core:19734]:
> gcc -I. -I/.ext/include/i386-mingw32 -I../.././include

It is curious.  How are topdir extout defined in the Makefile?
And since you don't use -mno-cygwin option, I suspect you use
mingw which isn't cygwin.  Then it isn't supported now.

-- 
Nobu Nakada