(vacation-day experimentation)
(i posted an abbreviated version of this question to Nim-Discord)
I've been experimenting with nim and am really enjoying it.
Now I want to get compile a binary to run on a Red Hat 7.9 server, and haven't gotten that to work, and would love a few links to some favorite writeups.
Some info, in case it's useful:
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I'm using a Mac M1, with nim installed via homebrew.
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I can successfully compile a binary on my Mac, and run it.
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I've tried
nim c --os:linux --cpu:amd64 -o:./nim_hello_world_for_linux ./helloworld.nim-- which seems to compile fine, but when I copy the binary over to redhat and try to run it, I get the output:-bash: ./nim_hello_world_for_linux: cannot execute binary file -
I've installed nim on a CentOS 7.9.x docker image, and run that same
nim c ...command -- which again seems to compile fine, but again when I copy the binary over to redhat and try to run it, I get the same failure output-message. -
ChatGPT led me through some troubleshooting. It said to run:
readelf -l ./nim_hello_world_for_linux-- and to pay attention to the INTEROP output. I did that, and it yields:[Requesting program interpreter: /lib/ld-linux-aarch64.so.1]-- so it seems to be ignoring the--cpu:amd64flag. -
Lastly, I did read the cross-compiler docs at: https://nim-lang.org/docs/nimc.html#crossminuscompilation -- but don't have a sense of how to move forward. And I did perform a few nim-discord searches, but have missed possible answers.
Walk-through links or tips appreciated!
Answer from Elegantbeef...
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% nimble install zigcc -
I had already installed zig for experimentation, so the zig compiler was all set
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I did this, based on a chatgpt suggestion, but it may not have been necessary:
% export CC=zigcc -
% nim c -d:release --cc:clang --clang.exe:zigcc --clang.linkerexe:zigcc --passC="-target x86_64-linux-gnu.2.19" --os:linux --passL="-target x86_64-linux-gnu.2.19" -o:./nim_hello_world_for_linux ./helloworld.nim