Re: Distinguish between platforms with defs

[Adam Fedor]

On Oct 29, 2005, at 3:04 PM, Andreas Höschler wrote:

> Hello all,
>
> I know about __APPLE__ and WIN32, but how can I say that I am on a 
> Solaris machine?

You can run this script to see what gcc defines on various platforms. 
In general, though, it's better to select code based on functionality 
not based on a specific platform (i.e. big-endian or not, does the os 
implement a particular function, etc...)

#!/bin/sh
for def in `gcc -E -v - </dev/null 2>&1 | grep [-]$`; do
  case $def in -D*) echo $def;; esac
done