[png-mng-misc] nmake libpng error

[Lady A. <Lad...@th...>]

Hi.  I followed the directions in zlib and libpng's README and INSTALL 
files, except at the step in libpng's INSTALL that said "Then just run 
"make"--instead I ran nmake, since I'm working on win32.  I have nmake 
from Microsoft's Visual C++ Toolkit 2003.  However, the make failed and 
looked something like this:
-----
D:\Tools\libpng>nmake

Microsoft (R) Program Maintenance Utility   Version 1.50
Copyright (c) Microsoft Corp 1988-94. All rights reserved.

        cl -c -Oait -Gs -nologo -W3 -AL -I..\zlib png.c >> pngerrs
'cl' is not recognized as an internal or external command,
operable program or batch file.
NMAKE : fatal error U1077: 'C:\WINDOWS\system32\cmd.exe' : return code '0x1'
Stop.
---

What is 'cl' and why is it unrecognized?


Any help welcome.  Thanks.
Lady Aphelion