xmake.repo/packages/i/imgui/xmake.lua

package("imgui")
    set_homepage("https://github.com/ocornut/imgui")
    set_description("v1.90.6")
    set_sourcedir(path.join(os.scriptdir(), "latest"))
    add_configs("copy", {description = "wheter copy lib to buildir", default = false, type = "boolean"})
   -- on_install(function(package)
        --print("package.tools.xmake")
        --import("package.tools.xmake").install(package,{},{buildir = path.join(os.scriptdir(), "build")})
    --end)
    on_fetch(function(package, opt)
        local buildir = package:buildir()
        
        print(buildir)
        local root = package:sourcedir()
        os.cd(root)
        import("package.tools.xmake").install(package, {})
        local includedirs = {path.join(root, "include")}
        local mode = package:config("debug") and "Debug" or "Realease"
        local linkdirs = {path.join(root, "build/" .. mode)}
        local links = {package:name()}
        print(linkdirs, links)
        return {
            includedirs = includedirs, linkdirs = linkdirs, links = links
        }
    end)