Luau fails to pass tests with extern_c = true

[raxracks]

Xmake Version

2.9.6

Operating System Version and Architecture

Linux laptop 6.11.0-1001-asahi-arm #1-Ubuntu SMP PREEMPT_DYNAMIC Sat Sep 28 14:42:09 UTC 2024 aarch64 aarch64 aarch64 GNU/Linux

Describe Bug

The test in the Luau package fails to link because the extern_c config flag adds extern "C" to all the functions meaning they don't have mangled names and can't be found when linking unless the test also has extern "C", I would submit my own pull request but I don't know how to change the test based on config flags.

/usr/bin/ld: /tmp/.xmake1000/241216/_30972899FDE349008EBF238727CE0510.o: in function `test()': _9B8070A7849241B0B487B0797A8791EE.cpp:(.text+0x8): undefined reference to `luaL_newstate()' /usr/bin/ld: _9B8070A7849241B0B487B0797A8791EE.cpp:(.text+0x14): undefined reference to `luaL_openlibs(lua_State*)' /usr/bin/ld: _9B8070A7849241B0B487B0797A8791EE.cpp:(.text+0x1c): undefined reference to `lua_close(lua_State*)'

Expected Behavior

The test should pass, as it does with the extern_c flag disabled

Project Configuration

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

add_requires("luau", { configs = { extern_c = true } })

target("luau-test")
    set_kind("binary")
    add_files("src/*.c")
    add_packages("luau")

Additional Information and Error Logs

> /usr/bin/g++ -o /tmp/.xmake1000/241216/_E19865D3ADAD483080527B34368CEB50.b /tmp/.xmake1000/241216/_E19865D3ADAD483080527B34368CEB50.o -L/home/sam/.xmake/packages/l/luau/0.643/c73bc7e59e274cd6b9cc974db0c13fcd/lib -lLuau.VM -lLuau.CodeGen -lLuau.EqSat -lLuau.Analysis -lLuau.Config -lLuau.Compiler -lLuau.Ast
/usr/bin/ld: /tmp/.xmake1000/241216/_E19865D3ADAD483080527B34368CEB50.o: in function `test()':
_9B8070A7849241B0B487B0797A8791EE.cpp:(.text+0x8): undefined reference to `luaL_newstate()'
/usr/bin/ld: _9B8070A7849241B0B487B0797A8791EE.cpp:(.text+0x14): undefined reference to `luaL_openlibs(lua_State*)'
/usr/bin/ld: _9B8070A7849241B0B487B0797A8791EE.cpp:(.text+0x1c): undefined reference to `lua_close(lua_State*)'
collect2: error: ld returned 1 exit status
> checking for c++ links(Luau.VM, Luau.CodeGen, Luau.EqSat, Luau.Analysis, Luau.Config, Luau.Compiler, Luau.Ast)
> checking for c++ snippet(test)
checkinfo: ...gramdir/core/sandbox/modules/import/core/tool/linker.lua:75: @programdir/core/sandbox/modules/os.lua:378: execv(/usr/bin/g++ -o /tmp/.xmake1000/241216/_E19865D3ADAD483080527B34368CEB50.b /tmp/.xmake1000/241216/_E19865D3ADAD483080527B34368CEB50.o -L/home/sam/.xmake/packages/l/luau/0.643/c73bc7e59e274cd6b9cc974db0c13fcd/lib -lLuau.VM -lLuau.CodeGen -lLuau.EqSat -lLuau.Analysis -lLuau.Config -lLuau.Compiler -lLuau.Ast) failed(1)
stack traceback:
    [C]: in function 'error'
    [@programdir/core/base/os.lua:1004]:
    [@programdir/core/sandbox/modules/os.lua:378]: in function 'execv'
    [@programdir/modules/core/tools/gcc.lua:599]:
    [C]: in function 'xpcall'
    [@programdir/core/base/utils.lua:244]:
    [@programdir/core/tool/linker.lua:232]: in function 'link'
    [...gramdir/core/sandbox/modules/import/core/tool/linker.lua:73]: in function 'link'
    [@programdir/modules/lib/detect/check_cxsnippets.lua:249]:
    [C]: in function 'xpcall'
    [@programdir/core/base/utils.lua:244]: in function 'trycall'
    [@programdir/core/sandbox/modules/try.lua:117]: in function 'try'
    [@programdir/modules/lib/detect/check_cxsnippets.lua:236]:
    [....xmake/repositories/xmake-repo/packages/l/luau/xmake.lua:81]: in function 'script'
    [...dir/modules/private/action/require/impl/utils/filter.lua:114]: in function 'call'
    [...dir/modules/private/action/require/impl/actions/test.lua:41]:
    [.../modules/private/action/require/impl/actions/install.lua:432]:
    [C]: in function 'xpcall'
    [@programdir/core/base/utils.lua:244]: in function 'trycall'
    [@programdir/core/sandbox/modules/try.lua:117]: in function 'try'
    [.../modules/private/action/require/impl/actions/install.lua:361]:
    [...modules/private/action/require/impl/install_packages.lua:496]: in function 'jobfunc'
    [@programdir/modules/async/runjobs.lua:241]:
    [C]: in function 'xpcall'
    [@programdir/core/base/utils.lua:244]: in function 'trycall'
    [@programdir/core/sandbox/modules/try.lua:117]: in function 'try'
    [@programdir/modules/async/runjobs.lua:223]: in function 'cotask'
    [@programdir/core/base/scheduler.lua:406]:

error: ....xmake/repositories/xmake-repo/packages/l/luau/xmake.lua:81: ...gramdir/core/sandbox/modules/import/core/tool/linker.lua:75: @programdir/core/sandbox/modules/os.lua:378: execv(/usr/bin/g++ -o /tmp/.xmake1000/241216/_E19865D3ADAD483080527B34368CEB50.b /tmp/.xmake1000/241216/_E19865D3ADAD483080527B34368CEB50.o -L/home/sam/.xmake/packages/l/luau/0.643/c73bc7e59e274cd6b9cc974db0c13fcd/lib -lLuau.VM -lLuau.CodeGen -lLuau.EqSat -lLuau.Analysis -lLuau.Config -lLuau.Compiler -lLuau.Ast) failed(1)
stack traceback:
    [C]: in function 'error'
    [@programdir/core/base/os.lua:1004]:
    [@programdir/core/sandbox/modules/os.lua:378]: in function 'execv'
    [@programdir/modules/core/tools/gcc.lua:599]:
    [C]: in function 'xpcall'
    [@programdir/core/base/utils.lua:244]:
    [@programdir/core/tool/linker.lua:232]: in function 'link'
    [...gramdir/core/sandbox/modules/import/core/tool/linker.lua:73]: in function 'link'
    [@programdir/modules/lib/detect/check_cxsnippets.lua:249]:
    [C]: in function 'xpcall'
    [@programdir/core/base/utils.lua:244]: in function 'trycall'
    [@programdir/core/sandbox/modules/try.lua:117]: in function 'try'
    [@programdir/modules/lib/detect/check_cxsnippets.lua:236]:
    [....xmake/repositories/xmake-repo/packages/l/luau/xmake.lua:81]: in function 'script'
    [...dir/modules/private/action/require/impl/utils/filter.lua:114]: in function 'call'
    [...dir/modules/private/action/require/impl/actions/test.lua:41]:
    [.../modules/private/action/require/impl/actions/install.lua:432]:
    [C]: in function 'xpcall'
    [@programdir/core/base/utils.lua:244]: in function 'trycall'
    [@programdir/core/sandbox/modules/try.lua:117]: in function 'try'
    [.../modules/private/action/require/impl/actions/install.lua:361]:
    [...modules/private/action/require/impl/install_packages.lua:496]: in function 'jobfunc'
    [@programdir/modules/async/runjobs.lua:241]:
    [C]: in function 'xpcall'
    [@programdir/core/base/utils.lua:244]: in function 'trycall'
    [@programdir/core/sandbox/modules/try.lua:117]: in function 'try'
    [@programdir/modules/async/runjobs.lua:223]: in function 'cotask'
    [@programdir/core/base/scheduler.lua:406]:

  => install luau 0.643 .. failed
error: @programdir/core/main.lua:329: @programdir/core/sandbox/modules/import/core/base/task.lua:65: @programdir/modules/async/runjobs.lua:325: .../modules/private/action/require/impl/actions/install.lua:494: install failed!
stack traceback:
    [C]: in function 'error'
    [@programdir/core/base/os.lua:1004]:
    [.../modules/private/action/require/impl/actions/install.lua:494]: in function 'catch'
    [@programdir/core/sandbox/modules/try.lua:123]: in function 'try'
    [.../modules/private/action/require/impl/actions/install.lua:361]:
    [...modules/private/action/require/impl/install_packages.lua:496]: in function 'jobfunc'
    [@programdir/modules/async/runjobs.lua:241]:

stack traceback:
	[C]: in function 'error'
	@programdir/core/base/os.lua:1004: in function '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>