在Windows上测试$(builddir)没有问题，但是在Ubuntu aarch64上测试会出问题(2025/05/16 安装的xmake)

add_rules("mode.debug", "mode.release")

add_requires("serial") -- GitHub: wjwwood/serial
add_requires("fmt") -- GitHub: fmtlib/fmt

target("serial_port")
    set_kind("shared")
    set_languages("c++17")
    add_includedirs("include", {public = true})
    add_files("src/*.cpp")
    add_packages("serial")
    add_defines("BUILDING_DLL")

    after_build(function (target)
        -- os.rm("$(builddir)/output")
        -- os.mkdir("$(builddir)/output/include")
        -- os.mkdir("$(builddir)/output/lib/$(plat)/$(arch)")
        -- os.cp("include/*", "$(builddir)/output/include")
        -- os.cp(target:targetfile(), "$(builddir)/output/lib/$(plat)/$(arch)")
        os.rm("$(builddir)/native")
        os.mkdir("$(builddir)/native")
        os.cp("include/*", "$(builddir)/native")
        os.cp(target:targetfile(), "$(builddir)/native")
    end)

function add_example(name)
    target(name)
        set_kind("binary")
        set_languages("c++17")
        add_includedirs("include", {public = true})
        add_files("examples/" .. name .. ".cpp")
        add_deps("serial_port")
        add_packages("fmt")
end

add_example("list_ports")

运行结果

error: @programdir/core/main.lua:329: @programdir/actions/build/main.lua:148: @programdir/modules/async/runjobs.lua:325: @programdir/core/sandbox/modules/os.lua:223: cannot create directory: /native, Not access because it is busy
stack traceback:
    [C]: in function 'error'
    [@programdir/core/base/os.lua:1075]:
    [@programdir/core/sandbox/modules/os.lua:223]: in function 'mkdir'
    [./xmake.lua:21]: in function 'after_build'
    [@programdir/actions/build/build.lua:127]: in function 'jobfunc'
    [@programdir/modules/async/runjobs.lua:241]:

stack traceback:
        [C]: in function 'error'
        @programdir/core/base/os.lua:1075: in function 'base/os.raiselevel'
        (...tail calls...)
        @programdir/core/main.lua:329: in upvalue 'cotask'
        @programdir/core/base/scheduler.lua:406: in function <@programdir/core/base/scheduler.lua:399>

显示是$builddir 被解释为了空，而改回 $buildir 则没有这个问题

给个完整可复现的工程

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Give a complete and reproducible project

我新建了一个仓库来表示这个问题：https://github.com/dzylikecode/bug-xmake-issue-6361

Bot detected the issue body's language is not English, translate it automatically.

I created a new repository to indicate this problem: https://github.com/dzylikecode/bug-xmake-issue-6361

我新建了一个仓库来表示这个问题：https://github.com/dzylikecode/bug-xmake-issue-6361

提个 issues 过来

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I created a new repository to indicate this problem: https://github.com/dzylikecode/bug-xmake-issue-6361

Let me ask you issues here

已经提出issue #6466

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Issue #6466 has been proposed

这个不考虑兼容性么？我们这边有一些新开发者已经遇到使用最新版 xmake 不兼容的情况了

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Doesn't this consider compatibility? Some new developers here have encountered incompatible situations using the latest version of xmake

内部做了兼容处理，buildir 同样可用，只是会有 deprecated warning 来提示迁移，理论上不会存在兼容问题。

如果有问题，可以提 issues

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Compatibility is done internally, and buildir is also available, but there will be deprecated warning to prompt for migration. In theory, there will be no compatibility problems.

If you have any questions, you can mention issues