Re: can autoconf determine if a preprocessor macro is defined or not?

[Warren Young]

Ed Hartnett wrote:
> I'm just trying to avoid platform-specific lines of code in my C
> files.

You've already _got_ platform-specific code.  All of the S_* macros are 
part of the stat() mechanism, which is Unix only.  Even if Windows 
supported it somehow, it would only be an approximation of the native 
facilities: Windows file permissions are vastly different from Unix 
ones.  If you can't get by without stat() on Unix, you'll have to seek 
out an equivalent mechanism on Windows.

This problem has been solved many times before.  Have you looked into 
portability libraries like apr?  http://apr.apache.org/