[TUHS] Mac OS X is Unix

[Tim Bradshaw]

I think you can do so only if every language processor you ever expect to deal with your code is lexically-compatible: you *can't* do so if the lexer will puke: you need some frontend which will prevent the lexer ever seeing the toxin, and that thing is what Lisp would call read-time conditionalization.  Plan 9 and Go both avoid this problem by being single-implementation or nearly-single-implementation systems: many things are easier with that assumption.

> On 3 Jan 2017, at 22:12, ron minnich <rminnich at gmail.com> wrote:
> 
> 
> 
>> On Tue, Jan 3, 2017 at 2:07 PM Lyndon Nerenberg <lyndon at orthanc.ca> wrote:
>> 
>> 
>> Plan 9 refreshingly evicted this nonsense from the native compilers (mostly) and the code base.[1]
> 
> Yes, You can write portable code without #ifdef, configure scripts, and libtool. Plan 9 shows how.
> 
> Some people get upset at mentions of Plan 9, however, so for a more current example, the Go source tree is a good reference. There's no cpp in Go, thank goodness, and they've shown superior portability to systems that revolve around #ifdef.
> 
> ron
> 
>  
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