xm-cygwin32.h): New. * config/i386/(*win32*): Becomes *cygwin32*. * configure.in (i[3456]86-*-win32*): Becomes i[3456]86-*-cygwin32. (powerpcle-*-cygwin32): New. * configure: Regenerate. * win32-nat.c (child_create_inferior): Call CreateProcess with the right program arg.