Dynamic libraries: Linking issues

[kassane]

CI: https://github.com/kassane/druntime-zigbuild/actions/runs/9750504082

• Linux no error/warning
• MacOS

  [zig cc] flags: "/Users/runner/work/druntime-zigbuild/druntime-zigbuild/.zig-cache/o/006036c7e618ced2d6105ea80d7c3d8f/libphobos2-ldc-shared-debug.o /Users/runner/work/druntime-zigbuild/druntime-zigbuild/.zig-cache/o/3a06d645592ea480b18993e3e9625726/libz.a -shared -o /Users/runner/work/druntime-zigbuild/druntime-zigbuild/zig-out/lib/libphobos2-ldc-shared-debug.dylib -fuse-ld=/Users/runner/work/druntime-zigbuild/druntime-zigbuild/.zig-cache/o/2772b3e39e720b715b3a82d74c501dd8/zcc -Wl,-dead_strip -lpthread -lm -target native-native -mcpu=generic -lunwind "
  error: undefined symbol: __D4core6thread10threadbase10ThreadBase8isDaemonMFNdNiNfbZv
  note: referenced by /Users/runner/work/druntime-zigbuild/druntime-zigbuild/.zig-cache/o/006036c7e618ced2d6105ea80d7c3d8f/libphobos2-ldc-shared-debug.o:__D3std11parallelism8TaskPool8isDaemonMFNdNebZv
  error: undefined symbol: __D10TypeInfo_a6__initZ
  note: referenced by /Users/runner/work/druntime-zigbuild/druntime-zigbuild/.zig-cache/o/006036c7e618ced2d6105ea80d7c3d8f/libphobos2-ldc-shared-debug.o:__D4core8internal5array5utils__T12__arrayAllocTaZQrFNaNbNemZSQCg6memory8BlkInfo_
  note: referenced by /Users/runner/work/druntime-zigbuild/druntime-zigbuild/.zig-cache/o/006036c7e618ced2d6105ea80d7c3d8f/libphobos2-ldc-shared-debug.o:__D4core8internal5array5utils__T12__arrayAllocTaZQrFNaNbNemZSQCg6memory8BlkInfo_
  note: referenced by /Users/runner/work/druntime-zigbuild/druntime-zigbuild/.zig-cache/o/006036c7e618ced2d6105ea80d7c3d8f/libphobos2-ldc-shared-debug.o:__D4core8internal5array5utils__T21__setArrayAllocLengthTaZQBaFNaNbNiKSQCp6memory8BlkInfo_mbmZb
  note: referenced by /Users/runner/work/druntime-zigbuild/druntime-zigbuild/.zig-cache/o/006036c7e618ced2d6105ea80d7c3d8f/libphobos2-ldc-shared-debug.o:__D4core8internal5array5utils__T21__setArrayAllocLengthTaZQBaFNaNbNiKSQCp6memory8BlkInfo_mbmZb
  note: referenced 7 more times
  error: undefined symbol: __D4core6thread12__ModuleInfoZ
  note: referenced by /Users/runner/work/druntime-zigbuild/druntime-zigbuild/.zig-cache/o/006036c7e618ced2d6105ea80d7c3d8f/libphobos2-ldc-shared-debug.o:__D3std7process12__ModuleInfoZ
  note: referenced by /Users/runner/work/druntime-zigbuild/druntime-zigbuild/.zig-cache/o/006036c7e618ced2d6105ea80d7c3d8f/libphobos2-ldc-shared-debug.o:__D3std11concurrency12__ModuleInfoZ
  note: referenced by /Users/runner/work/druntime-zigbuild/druntime-zigbuild/.zig-cache/o/006036c7e618ced2d6105ea80d7c3d8f/libphobos2-ldc-shared-debug.o:__D3std11parallelism12__ModuleInfoZ
  error: undefined symbol: __D14TypeInfo_Array6__vtblZ
  note: referenced by /Users/runner/work/druntime-zigbuild/druntime-zigbuild/.zig-cache/o/006036c7e618ced2d6105ea80d7c3d8f/libphobos2-ldc-shared-debug.o:__D12TypeInfo_Axh6__initZ
  note: referenced by /Users/runner/work/druntime-zigbuild/druntime-zigbuild/.zig-cache/o/006036c7e618ced2d6105ea80d7c3d8f/libphobos2-ldc-shared-debug.o:__D13TypeInfo_AAya6__initZ
  note: referenced by /Users/runner/work/druntime-zigbuild/druntime-zigbuild/.zig-cache/o/006036c7e618ced2d6105ea80d7c3d8f/libphobos2-ldc-shared-debug.o:__D12TypeInfo_Ayw6__initZ
  note: referenced by /Users/runner/work/druntime-zigbuild/druntime-zigbuild/.zig-cache/o/006036c7e618ced2d6105ea80d7c3d8f/libphobos2-ldc-shared-debug.o:__D13TypeInfo_AxAa6__initZ
  note: referenced 229 more times

• Windows-msvc

  
  [zig cc] flags: "/NOLOGO /DEBUG /OPT:REF /OPT:NOICF /DEFAULTLIB:msvcrt /DEFAULTLIB:vcruntime /DLL /OUT:D:\a\druntime-zigbuild\druntime-zigbuild\zig-out\lib\druntime-ldc-shared-debug.dll D:\a\druntime-zigbuild\druntime-zigbuild\.zig-cache\o\4bcbbb8f1a3942f3354094b3fadc2bf0\druntime-ldc-shared-debug.obj D:\a\druntime-zigbuild\druntime-zigbuild\.zig-cache\o\2c0fb68a566f646bdce39a9c7d215609\asm.lib kernel32.lib user32.lib gdi32.lib winspool.lib shell32.lib ole32.lib oleaut32.lib uuid.lib comdlg32.lib advapi32.lib oldnames.lib legacy_stdio_definitions.lib -target x86_64-windows.win8_1...win11_ge-msvc -mcpu=znver3 "
  lld-link: error: undefined symbol: __declspec(dllimport) ClassInfo for core.sync.mutex.Mutex
  >>> referenced by D:\a\druntime-zigbuild\druntime-zigbuild\druntime\src\ldc\eh_msvc.d:622
  >>>               D:\a\druntime-zigbuild\druntime-zigbuild\.zig-cache\o\4bcbbb8f1a3942f3354094b3fadc2bf0\druntime-ldc-shared-debug.obj:(_D3ldc7eh_msvc12msvc_eh_initFZv)

lld-link: error: undefined symbol: __declspec(dllimport) vtable for core.sync.mutex.Mutex

referenced by D:\a\druntime-zigbuild\druntime-zigbuild\druntime\src\ldc\eh_msvc.d:622 D:\a\druntime-zigbuild\druntime-zigbuild.zig-cache\o\4bcbbb8f1a3942f3354094b3fadc2bf0\druntime-ldc-shared-debug.obj:(_D3ldc7eh_msvc12msvc_eh_initFZv)

lld-link: error: undefined symbol: __declspec(dllimport) initializer for core.sync.mutex.Mutex

referenced by D:\a\druntime-zigbuild\druntime-zigbuild\druntime\src\ldc\eh_msvc.d:622 D:\a\druntime-zigbuild\druntime-zigbuild.zig-cache\o\4bcbbb8f1a3942f3354094b3fadc2bf0\druntime-ldc-shared-debug.obj:(_D3ldc7eh_msvc12msvc_eh_initFZv) referenced by D:\a\druntime-zigbuild\druntime-zigbuild\druntime\src\core\lifetime.d:106 D:\a\druntime-zigbuild\druntime-zigbuild.zig-cache\o\4bcbbb8f1a3942f3354094b3fadc2bf0\druntime-ldc-shared-debug.obj:(_D4core8lifetime__T7emplaceTCQBb4sync5mutex5MutexZQBfFNbNiNfQBgZQBk)

lld-link: error: undefined symbol: _D4core4sync5mutex5Mutex6__ctorMFNbNiNeZCQBnQBlQBjQBg

referenced by D:\a\druntime-zigbuild\druntime-zigbuild\druntime\src\ldc\eh_msvc.d:622 D:\a\druntime-zigbuild\druntime-zigbuild.zig-cache\o\4bcbbb8f1a3942f3354094b3fadc2bf0\druntime-ldc-shared-debug.obj:(_D3ldc7eh_msvc12msvc_eh_initFZv) referenced by D:\a\druntime-zigbuild\druntime-zigbuild\druntime\src\core\lifetime.d:126 D:\a\druntime-zigbuild\druntime-zigbuild.zig-cache\o\4bcbbb8f1a3942f3354094b3fadc2bf0\druntime-ldc-shared-debug.obj:(_D4core8lifetime__T7emplaceTCQBb4sync5mutex5MutexZQBfFNbNiNfQBgZQBk)

lld-link: error: undefined symbol: init_msvc

referenced by D:\a\druntime-zigbuild\druntime-zigbuild\druntime\src\rt\dmain2.d:119 D:\a\druntime-zigbuild\druntime-zigbuild.zig-cache\o\4bcbbb8f1a3942f3354094b3fadc2bf0\druntime-ldc-shared-debug.obj:(rt_init)

[kassane]

Target Windows does not detect libdruntime with .lib suffix (generating only dll) https://github.com/kassane/druntime-zigbuild/actions/runs/10905266374/job/30263688710

---

MacOS

https://github.com/kassane/druntime-zigbuild/actions/runs/10905266374/job/30263688347#step:5:12

error: undefined symbol: section$end$__DATA$.minfo
    note: referenced by /Users/runner/.cache/zig/o/dd6ab5043092597b04e52dd988141101/libdruntime-ldc-debug-shared.o:__D2rt3dso12register_dsoFZv
    note: referenced by /Users/runner/.cache/zig/o/dd6ab5043092597b04e52dd988141101/libdruntime-ldc-debug-shared.o:__D2rt3dso12register_dsoFZv