is crystal can build to single exe or binary like golang ? ever not need glibc.

Yes, see docs Redirecting... And this answer [image] Executable wont run on computer without libraries installed Help & Support You can build statically linked programs in Crystal but now it only works on Alpine Linux. You can install Docker for Mac and use https://hub.d…

thanks, buddy. but why static only work on alphine ? could you share to me ? @vlazar

The main issue is with linking glibc statically (it has some features working against that), but musl works fine. Alpine is built on musl and generally favours static linking with patches to other troublesome libraries like openssl and libz. That’s why we recommend linking static Linux libraries on…

so rust use the musl too. it is the same challenge for rust developer ?

Yes, these static linking issues are not specific to Crystal.

Could we link against musl in other systems to achieve static linking?

You mean for example having glibc as the system default and musl additionally installed? I doubt: better to have each static library compiled with the same libc.

Yes, that’s definitely doable. However, the issues with linking statically are not only with libc but also other libraries and as I understand it, Alpine helps by providing libraries that can be statically linked. But you can simply install musl on say a Ubuntu machine and use musl-gcc for linking …

Could we link against musl in other systems to achieve static linking? It’s nice to have a techical possibility to do something, but the result may be of less utility than anticipated. In other words, why would you do that? My understanding is that release builds should always involve a clean chr…

Could crystal static build to single binary?

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vlazar March 18, 2019, 10:31am 2

Yes, see docs Redirecting...

And this answer

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Could crystal static build to single binary?

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