- s, use, enable, for options name, avoiding conflicts with the names used in the makefile

!MESSAGE   WITH_ZLIB=<dll or static>    - Enable ZLib support, DLL or static

!MESSAGE   WITH_SSH2=<dll or static>    - Enable LIbSSH2 support, DLL or static

!MESSAGE   USE_SSSPI=<yes or no>        - Enable SSPI support, default to yes

!MESSAGE   USE_IPV6=<yes or no>         - Enable IPV6, default to yes

!MESSAGE   ENABLE_IPV6=<yes or no>         - Enable IPV6, default to yes

!MESSAGE   DEBUG=<yes or no>            - Debug builds

!MESSAGE   USE_IDN=<yes or no>          - Wheter or not to use IDN Windows APIs. Requires Windows Vista or later.

!MESSAGE   ENABLE_IDN=<yes or no>          - Wheter or not to use IDN Windows APIs. Requires Windows Vista or later.

!MESSAGE                                  or to install http://www.microsoft.com/downloads/details.aspx?FamilyID=AD6158D7-DDBA-416A-9109-07607425A815

!MESSAGE   GEN_PDB=<yes or no>          - Generate Program Database (debug symbols release build)

!ERROR please choose a valid mode

USE_SSPI=true

!ENDIF

!IFNDEF USE_IPV6

!IFNDEF ENABLE_IPV6

USE_IPV6   =true

!ELSEIF "$(ENABLE_IPV6)"=="yes"

USE_IPV6   =true

!ENDIF

!IFNDEF USE_IDN

!IFNDEF ENABLE_IDN

USE_IDN=true

!ENDIF