Microsoft (R) Program Maintenance Utility   Version 6.00.9782.0
Copyright (C) Microsoft Corp 1988-1998. All rights reserved.

        cl   -c -nologo -MD -O2  adler32.c
adler32.c
zconf.h(289) : fatal error C1083: Cannot open include file: 'unistd.h': No such file or directory
NMAKE : fatal error U1077: 'cl' : return code '0x2'
Stop.
NMAKE : fatal error U1077: 'cd' : return code '0x2'
Stop.
NMAKE : fatal error U1077: '"C:\Programme\Microsoft Visual Studio\VC98\bin\nmake.exe"' : return code '0x2'
Stop.
  nmake  -- NOT OK
Running make test
  Can't test without successful make
Running make install
  make had returned bad status, install seems impossible