Re: [ProgSoc] Conditional Compilation

[Anand Kumria <wildfire@nospam.progsoc.uts.edu.au>]

On Thu, May 11, 2000 at 02:01:27PM +1000, Shaun Clowes wrote:
> 
> Hi All,
> 
> I need to do some conditional compilation (preprocessor ifdefs etc) and I
> need an easy way to do this based on the version of glibc on Linux or the
> version of Solaris. Ideas how to do this? Preferably without a configure
> script.

This is for tsock, presumably.

With gcc try: `cpp -dM' to get a list of predefined macros, for Linux
__linux__ is probably widely supported and for Sun __sun__ is as well.

GNU LibC has version definitions in /usr/include/features.h; 
__GLIBC__ and __GLIBC_MINOR__ are what you should use.

Anand
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