Are GSHbox and GSVbox supported on Mac OS X?

[fsb4000]

I recently started learning Objective C and gnustep.
I looked at the examples and I found the GSVBOX and GSHbox classes to be
convenient. (similar to other widgets toolkits layout classes)
But the main thing for me is cross-platform.
I don't have a Macbook, only Windows 10 and VirtualBox Linux so I can't
check, but I’m wondering if an Objective-C program with GSHbox will work on
Mac OS X?



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