doctest: make the "Exporting a C Library" example work #14378
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The mathtest example of exporting a library with the C ABI it not working, since the mathtest.h file is not generated. Update the shell sample, adding the -femit-h flag to the zig build-lib command. Show an example of how to copy the zig.h file to the project directory, using zig env and jq. I'm not sure if there is a better/official method.
| The generated C header file includes the zig.h file that must be copied | ||
| to the project directory, as an example using <a href="https://stedolan.github.io/jq/">jq</a>: | ||
| </p> | ||
| {#shell_samp#}cp $(zig env | jq -r .lib_dir)/zig.h .{#end_shell_samp#} |
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A command like this shouldn't be needed to use -femit-h and should be fixed before documenting -femit-h.
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The command is not needed to use -femit-h, but to copy the zig.h file to the current directory. Without the zig.h file zig build fails on my system.
Thanks.
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I know and it shouldn't be needed for that.
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Did you set the CPATH environment variable manually?
I also tried with the new official zig 0.10.0 package from Archlinux, but zig.h is not found (it is installed in /usr/lib/zig/include/zig.h.
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I didn't set anything, I get all the same errors as you do. What I meant is that you shouldn't need to copy anything or set some environment variable, zig.h should either not be referenced by the emitted header or it should be installed alongside it.
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Ok, I misunderstood what you wrote. Thanks.
I will open an issue.
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I found an open issue for the same problem of |
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FYI: In addition to the the "Exporting a C Library" example, there is another not working example in the "Mixing Object Files" example. |
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The mathtest example of exporting a library with the C ABI it not working, since the mathtest.h file is not generated.
Update the shell sample, adding the -femit-h flag to the zig build-lib command.
Show an example of how to copy the zig.h file to the project directory, using zig env and jq. I'm not sure if there is a better/official method.