[cfe-dev] Clang debug linking options on Windows

[Russell Wallace via cfe-dev]

I'm trying to compile some code via IR and link it with the debug libraries
on Windows, but getting errors. A minimal test case:

C:\t>type a.cpp
#define _HAS_EXCEPTIONS 0
#include <llvm/Support/Signals.h>

int main() {
  llvm::sys::PrintStackTraceOnErrorSignal();
  return 0;
}

C:\t>clang -I/llvm/build/include -I/llvm/include -S -emit-llvm
-fms-compatibility-version=19 a.cpp

C:\t>clang a.ll \llvm\build\Debug\lib\*.lib
warning: overriding the module target triple with
x86_64-pc-windows-msvc18.0.0 [-Woverride-module]
1 warning generated.
LLVMSupport.lib(Signals.obj) : error LNK2038: mismatch detected for
'_ITERATOR_DEBUG_LEVEL': value '2' doesn't match value '0' in a-db717b.o
LLVMSupport.lib(Signals.obj) : error LNK2038: mismatch detected for
'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value
'MT_StaticRelease' in a-db717b.o
LLVMSupport.lib(Path.obj) : error LNK2038: mismatch detected for
'_ITERATOR_DEBUG_LEVEL': value '2' doesn't match value '0' in a-db717b.o
LLVMSupport.lib(Path.obj) : error LNK2038: mismatch detected for
'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value
'MT_StaticRelease' in a-db717b.o
LLVMSupport.lib(raw_ostream.obj) : error LNK2038: mismatch detected for
'_ITERATOR_DEBUG_LEVEL': value '2' doesn't match value '0' in a-db717b.o
...etc...

There's probably an option that I'm missing?
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