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Daniel Berger

Posts: 1383
Nickname: djberg96
Registered: Sep, 2004

Daniel Berger is a Ruby Programmer who also dabbles in C and Perl
Rethinking PLATFORM Posted: Apr 11, 2008 5:29 AM
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Original Post: Rethinking PLATFORM
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Or, rather, RUBY_PLATFORM.

It seems I and others have gotten ourselves into a wee bit of trouble by relying on RUBY_PLATFORM.match('mswin') over the years. With alternative implementations like JRuby and IronRuby running amok out there now, this is no longer a safe practice. In JRuby, for example, if you inspect the value of RUBY_PLATFORM it returns "java".

We'll ignore the fact that Sun and Microsoft hijacked the term "platform" for their own marketing ends. To me "platform" will always mean "operating system", but I know when I'm licked.

The ol' File::ALT_SEPARATOR trick is probably unwise as well if you want your code to work on VMS.

That leaves us rbconfig. Specifically, Config::CONFIG['host_os'], which shows up as "mswin32_80" when I use my version of Ruby built with VC++ 8.

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