Hi,

Windows Vista (Home Premium)
MS VC++ 9 (cl 15)
Ruby 1.8.6-p114 and Ruby 1.8.6-p237

eval.c
...
eval.c(9839) : fatal error C1189: #error :  unsupported platform
NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio 
9.0\VC\BIN\amd64\cl.EXE"' : return code '0x2
'
Stop.

Where the relevant code is:

#if !defined SAVE_WIN32_EXCEPTION_LIST && !defined _WIN32_WCE
# error unsupported platform
#endif
#endif

Regards,

Dan