>>but in practical terms, it is, because you can't do anything useful in Objective-C on Linux (like write iOS applications, which is the biggest reason people want to use Objective-C these days[1])
But let me give you a simple and plausible scenario where running Obj-C on Linux might be worthwhile.
Let's for argument's sake, say I'm an indie Windows developer who wants to do iOS development but has heard the most common complaint about Objective-C -- "the weird syntax".
Before I run out and blow my wad a Mac, I can set up a Linux VM with Obj-C to just play with the language at an abstract and academic level and see if I can even wrap my head around the language first.
If I were to trust the OP's sentence at face value, I wouldn't really know that was possible.
But let me give you a simple and plausible scenario where running Obj-C on Linux might be worthwhile.
Let's for argument's sake, say I'm an indie Windows developer who wants to do iOS development but has heard the most common complaint about Objective-C -- "the weird syntax".
Before I run out and blow my wad a Mac, I can set up a Linux VM with Obj-C to just play with the language at an abstract and academic level and see if I can even wrap my head around the language first.
If I were to trust the OP's sentence at face value, I wouldn't really know that was possible.