Re: [PLUG] Linux Port

["K.S. Bhaskar" <bhaskar@bhaskars.com>]

It all depends on how large and complex the application is.  Ifdefs
dont' scale well to large code bases.  In GT.M
(http://www.sanchez-gtm.com), which is between a quarter million and a
half million lines of code that implements a high performance
transaction processing database engine and associated compiled
scripting language, we try to abstract out platform dependencies into
header files wherever possible, e.g., by encapsulating functionality
in macros.  Where warranted (e.g., in the compiler), we have platform
dependent versions of source files.  Source code for the
implemnentations of GT.M on x86 GNU/Linux and HP Alpha/AXP Tru64 UNIX
are GPL'd at Source Forge
(http://sourceforge.net/projects/sanchez-gtm) and you can compare the
two code bases to see how it's done.  [This is a real-world database
engine that runs tens of millions of bank accounts around the globe.]

Of course, if your application is small, ifdef away...

-- Bhaskar

On 7/26/06, Daniel K. Spicer <spicer@linuxmania.com> wrote:
> I'm doing a code port from Solaris to Suse Linux. The ported code will need to run on both so I need a preproccessor directive in the .c files like:
>
> #ifdef SUSE
>   ...Linux code
> #else
>   ...Solaris code
> #endif
>
> I'm using gcc. Does anyone know of an existing macro for Suse or Solaris to do this with?
> Or another good way of doing it?
>
> Thanks,
>  -Dan
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