Call swift from c

我看到有人使用来自 android 的 swift 代码，使用 swift 函数@_cdecl。我能够使用 swiftc -emit-object 编译为本机，但是当尝试链接时，我无法让链接器正常工作。

我正在尝试使用 g++ 或 clang(++( 来编译和链接原生 swift 对象，有人已经成功地做到了吗？

下面列出了我收到的错误：

Undefined symbols for architecture x86_64: 
"__T0S2SBp21_builtinStringLiteral_Bw17utf8CodeUnitCountBi1_7isASCIItcfC", referenced from:
      __T04main4testyyF in main.o
"__T0SSN", referenced from:
      __T04main4testyyF in main.o
"__T0s27_allocateUninitializedArraySayxG_BptBwlFyp_Tgq5", referenced from:
      __T04main4testyyF in main.o
"__T0s5printySayypGd_SS9separatorSS10terminatortF", referenced from:
      __T04main4testyyF in main.o
"__T0s5printySayypGd_SS9separatorSS10terminatortFfA0_", referenced from:
      __T04main4testyyF in main.o
"__T0s5printySayypGd_SS9separatorSS10terminatortFfA1_", referenced from:
      __T04main4testyyF in main.o
"_swift_bridgeObjectRelease", referenced from:
      __T04main4testyyF in main.o
"_swift_bridgeObjectRetain", referenced from:
      __T04main4testyyF in main.o

所以基本上我有两个问题，可以做到吗，怎么做？John。