That is one option and is in the ballpark 
of http://dev.clojure.org/jira/browse/CLJ-1750.

On Thursday, May 26, 2016 at 11:47:09 PM UTC-5, Nathan Davis wrote:
>
> I can't reply to the thread on the Dev list, but here's my take.
>
> Unless I'm missing something, it seems to me that most these issues could 
> be resolved by having a dynamic var that gets set during macro expansion 
> according to the target platform.  For instance, *compiler-target* is set 
> to :clj or :cljs, depending on whether we're compiler for the JVM or 
> Javascript.  If we want to be a little more sophisticated, 
> *compiler-target* could be a set whose members are the same keywords that 
> were "active" at read-time.  That would have the additional convenience 
> that *compiler-target* would act as a predicate, indicating whether a 
> particular "feature" is available for the target platform.
>
> Then if a macro needs to be expanded in a certain way for certain 
> platforms, it can just consult *compiler-target*.
>
> Anyway, that's my 2-cents.
>
> Nathan Davis
>
>
> On Sunday, May 22, 2016 at 5:57:14 PM UTC-5, Herwig Hochleitner wrote:
>>
>> This thread just came up, while I was in the process of composing a mail 
>> on this topic to clojure-dev: 
>> https://groups.google.com/d/msg/clojure-dev/f6ULUVokXrU/3uue5okSAgAJ
>>
>> 2016-05-20 23:22 GMT+02:00 Dan Burton <danburt...@gmail.com>:
>>
>>> What about something like
>>>
>>> (def obj #?(:clj Object :cljs js/Object))
>>>
>>
>> Unfortunately, doesn't work for cases, where you need to generate 
>> different syntax, eg `(try .. (catch Throwable e ...))` vs `(try ... (catch 
>> :default e ...))`.
>>
>>

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