Compile targeting a different platform of Ruby (cross-compilation) about gem-compiler HOT 2 CLOSED

Hello! I'm very interested in this feature and I would like to help to achieve it. Could you please point me to which file(s) I can start looking at?

from gem-compiler.

Hello @simplytech and thank you for your interest!

The complexity around this issue is a bit high, as I believe it requires #2 and #3 to be implemented first in order to achieve that.

I created gem-compiler out of issues attempting to get rake-compiler adopted by some projects.

Right now rake-compiler does provide cross-compilation, but it requires modification of how gems are built.

There is no specific place in gem-compiler to look for cross-platform support, but should be in the lines of hi-jacking ExtBuilder and ensure the RbConfig information of the target platform is set in place (plus the fake.rb file required to change the platform).

It also requires the target Ruby be present, which means you need to cross-compile Ruby for the desired platform and refer to it.

While rake-compiler code might be a bit too much, the principle described above is the same: have the target Ruby installed, know where its rbconfig.rb is and use it to deceive your native Ruby to compile the extension for that platform.

I'm no longer pursuing this feature due it's complexity, but feel free to explore the ideas and ask questions about it.

Cheers!

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