在Cygwin上构建ns-2

Question

我正在Cygwin上安装NS2。我已经安装了gcc。似乎Cygwin和所需的包之间没有联系。gcc的版本是5.4.0。出现"Package ... is not present on your system“。对于每个包。

Checking Cygwin version is >= 1.3.12... 2.5.2 (should be ok)
Checking filesystems are mounted as UNIX filetype... yes
Checking default mode is binmode... yes
Checking legitimate login name... ok
Checking legitimate path name... ok
Checking for gcc... NO!

Package gcc is not present on your system.

Please install it using Cygwin's setup.exe
before trying to install the ns-2 distribution.

The above test indicates that your installation of Cygwin
is probably NOT SUITABLE for installing ns-2 allinone.
(More details can be found in the specific error message above.)

Do you wish to proceed regardless? [y/N] y

*** OK, but you're on your own... ***

Checking for gcc-g++... ok
Checking for gawk... ok
Checking for tar... ok
Checking for gzip... ok
Checking for make... ok
Checking for patch... NO!

Package patch is not present on your system.

Please install it using Cygwin's setup.exe
before trying to install the ns-2 distribution.

The above test indicates that your installation of Cygwin
is probably NOT SUITABLE for installing ns-2 allinone.
(More details can be found in the specific error message above.)

Do you wish to proceed regardless? [y/N] y

*** OK, but you're on your own... ***

Checking for perl... NO!

Package perl is not present on your system.

当我尝试安装Cygwin包并检查每个要安装的包时，出现"Nothing needed to be installed“消息。