Issues with unresolved externals from TensorFlow 2.4 C++ on Windows - c++

Question

I built the TensorFlow v2.4 C++ API on Windows and now I am trying to run my application, however the linker complains for unresolved externals.
I am trying to build a library with some custom OPs which I was successfully able to compile under Linux, but on Windows I get this:
Error LNK2019 unresolved external symbol "public: __cdecl tensorflow::Status::Status(enum tensorflow::error::Code,class std::basic_string_view<char,struct std::char_traits<char> >,class std::vector<struct tensorflow::StackFrame,class std::allocator<struct tensorflow::StackFrame> > &&)" (??0Status#tensorflow##QEAA#W4Code#error#1#V?$basic_string_view#DU?$char_traits#D#std###std##$$QEAV?$vector#UStackFrame#tensorflow##V?$allocator#UStackFrame#tensorflow###std###5##Z) referenced in function "public: __cdecl tensorflow::Status::Status(enum tensorflow::error::Code,class std::basic_string_view<char,struct std::char_traits<char> >)" (??0Status#tensorflow##QEAA#W4Code#error#1#V?$basic_string_view#DU?$char_traits#D#std###std###Z) TF_Project main_cc.obj 1
Error LNK2019 unresolved external symbol "class tensorflow::Status __cdecl tensorflow::GetNodeAttr(class tensorflow::AttrSlice const &,class std::basic_string_view<char,struct std::char_traits<char> >,int *)" (?GetNodeAttr#tensorflow##YA?AVStatus#1#AEBVAttrSlice#1#V?$basic_string_view#DU?$char_traits#D#std###std##PEAH#Z) referenced in function "public: class tensorflow::Status __cdecl tensorflow::shape_inference::InferenceContext::GetAttr<int>(class std::basic_string_view<char,struct std::char_traits<char> >,int *)const " (??$GetAttr#H#InferenceContext#shape_inference#tensorflow##QEBA?AVStatus#2#V?$basic_string_view#DU?$char_traits#D#std###std##PEAH#Z) TF_Project main_cc.obj 1
Error LNK2019 unresolved external symbol "private: void __cdecl tensorflow::kernel_factory::OpKernelRegistrar::InitInternal(class tensorflow::KernelDef const *,class std::basic_string_view<char,struct std::char_traits<char> >,class std::unique_ptr<class tensorflow::kernel_factory::OpKernelFactory,struct std::default_delete<class tensorflow::kernel_factory::OpKernelFactory> >)" (?InitInternal#OpKernelRegistrar#kernel_factory#tensorflow##AEAAXPEBVKernelDef#3#V?$basic_string_view#DU?$char_traits#D#std###std##V?$unique_ptr#VOpKernelFactory#kernel_factory#tensorflow##U?$default_delete#VOpKernelFactory#kernel_factory#tensorflow###std###6##Z) referenced in function "void __cdecl `dynamic initializer for 'register_kernel_4''(void)" (??__Eregister_kernel_4##YAXXZ) TF_Project main_cc.obj 1
I tried all sorts of things, I compiled tensorflow.dll, tensorflow_cc.dll and tensorflow_framework.dll
I tried to link against all 3 in all sorts of combinations, but the missing symbols are not found.
Am I missing some library that I should link against?
I did a simple test to verify that the libraries I built are valid and they seem so.
Calling tf_monolithic_build(); and tf_compiler_version();
does not produce unresolved externals and returns expected results.
Any help would be greatly appreciated!
Update 1:
Tried to do some digging on the first error.
The Status class is contained within 2 files : status.h and status.cc that live in tensorflow\core\platform
The problematic missing constructor is indeed defined in status.cc, so that should mean that status.cc.o is not part of tensorflow_cc.dll?
Why can this be? In tensorflow\core\platform\BUILD I can see these is some code for compiling the files to a library called status
cc_library(
name = "status",
srcs = ["status.cc"],
hdrs = ["status.h"],
deps = [
":logging",
":macros",
":mutex",
":stacktrace",
":str_util",
":strcat",
":stringpiece",
":stringprintf",
":types",
"//tensorflow/core/protobuf:error_codes_proto_impl_cc",
"#com_google_absl//absl/base",
],
)
Unfortunately my Bazel-fu is very limited and I have no idea how to verify that this library is indeed compiled during the 6 hour long process and is indeed wrapped inside the final DLL file.