[cfe-dev] Clang debug linking options on Windows

[Russell Wallace via cfe-dev]

_MT has no effect; same errors.

On Mon, Sep 14, 2015 at 2:19 PM, Joshua Gerrard <joshua.gerrard at roli.com>
wrote:

> Also try defining _MT
>
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> Joshua Gerrard
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> On 11 September 2015 at 23:49, Russell Wallace via cfe-dev <
> cfe-dev at lists.llvm.org> wrote:
>
>> That almost works. What am I still missing? I tried -g but no effect.
>>
>> C:\t>clang -D_DEBUG -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.
>> LINK : warning LNK4098: defaultlib 'LIBCMTD' conflicts with use of other
>> libs; use /NODEFAULTLIB:library
>> LLVMSupport.lib(TargetParser.obj) : error LNK2001: unresolved external
>> symbol _CrtDbgReportW
>> libcpmtd.lib(stdthrow.obj) : error LNK2001: unresolved external symbol
>> _CrtDbgReportW
>> libcpmtd.lib(syserror.obj) : error LNK2001: unresolved external symbol
>> _CrtDbgReportW
>> LLVMSupport.lib(ConvertUTFWrapper.obj) : error LNK2001: unresolved
>> external symbol _CrtDbgReportW
>> LLVMSupport.lib(Host.obj) : error LNK2001: unresolved external symbol
>> _CrtDbgReportW
>> LLVMSupport.lib(MemoryBuffer.obj) : error LNK2001: unresolved external
>> symbol _CrtDbgReportW
>> etc...
>>
>> On Fri, Sep 11, 2015 at 9:14 PM, Reid Kleckner <rnk at google.com> wrote:
>>
>>> You're crossing the relase/debug MSVC CRT streams. Make sure all objects
>>> in a given image are using the same CRT.
>>>
>>> In your specific example, you should add -D_DEBUG to the command line.
>>> You want to simulate the effect of passing /MTd to cl.exe or clang-cl.exe.
>>>
>>> On Fri, Sep 11, 2015 at 10:07 AM, Russell Wallace via cfe-dev <
>>> cfe-dev at lists.llvm.org> wrote:
>>>
>>>> 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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>>>> cfe-dev at lists.llvm.org
>>>> http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev
>>>>
>>>>
>>>
>>
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