我在Cygwin B20中想编译innbbsd,其中Firebird的版本为FBNT3.3W出现如下信息，该如何
处理呢？请指教：

bash-2.02$ make
Your Configurations are listed as follows
  CC = gcc
  BBSHOME = /home/bbs
  BBS_SRC = /home/bbs/bbssrc
  BBS_DEP = FirebirdBBS
BBS_POST = innd/bbspost
ADMINUSER = SYSOP.bbs@MSIA.pine.ncu.edu.tw
Change them in Makefile if not correct.

Please enter 'make sys-type',
make sun     : for Sun-OS 4.x and maybe some BSD systems, cc or gcc
make linux   : for Linux 1.x
make solaris : for Sun-OS 5.x gcc
make aix     : for IBM AIX
make hpux    : for HP UX
make irix    : for IRIS
make alpha   : for DEC Alpha running OSF/1
make freebsd : for BSD 4.4 systems
make bsd     : for BSD systems, cc or gcc, if not in the above listts
make sysv    : for SYSV systems, cc or gcc, if not in the above lists


我应该输入的操作系统是什么呢？
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FROM 219.216.80.*