[cfe-dev] mincore.lib symbols in the link - how to avoid?

[Csaba Raduly via cfe-dev]

Here's someone else who ran into the same problem:
https://github.com/poizan42/soswow64/commit/2f9e368c28476caff1ce2966f87e9122c422c804

This is a really shitty move by Micros~1, documenting mincore.lib as
the supplier of GetFileVersionInfo* functions, as if Windows 2000, XP,
Vista, 7 never existed, even though
https://msdn.microsoft.com/en-us/library/windows/desktop/ms647464(v=vs.85).aspx
admits that the minimum supported OS is Windows 2000.


On Mon, Aug 7, 2017 at 5:52 PM, Russell Wallace via cfe-dev
<cfe-dev at lists.llvm.org> wrote:
> I'm trying to compile a program that is intended to use Clang as a library,
> and getting an error where it tries to link in some symbols that are not
> actually available.
>
> Windows 7
> Visual Studio 2017
> LLVM 4.0.1
> Everything 64-bit, and I built LLVM myself
>
> // minimal test program
> #include <clang/Frontend/CompilerInstance.h>
> int main(int argc, char **argv) {
>   clang::CompilerInstance ci;
>   return 0;
> }
>
> cl /I\llvm\build\include /I\llvm\build\tools\clang\include /I\llvm\include
> /I\llvm\tools\clang\include /J /MTd /Zi test.cpp \llvm\build\Debug\lib\*.lib
>
> clangDriver.lib(MSVCToolChain.obj) : error LNK2019: unresolved external
> symbol GetFileVersionInfoSizeW referenced in function "private: class
> clang::VersionTuple __cdecl
> clang::driver::toolchains::MSVCToolChain::getMSVCVersionFromExe(void)const "
> (?getMSVCVersionFromExe at MSVCToolChain@toolchains at driver@clang@@AEBA?AVVersionTuple at 4@XZ)
> clangDriver.lib(MSVCToolChain.obj) : error LNK2019: unresolved external
> symbol GetFileVersionInfoW referenced in function "private: class
> clang::VersionTuple __cdecl
> clang::driver::toolchains::MSVCToolChain::getMSVCVersionFromExe(void)const "
> (?getMSVCVersionFromExe at MSVCToolChain@toolchains at driver@clang@@AEBA?AVVersionTuple at 4@XZ)
> clangDriver.lib(MSVCToolChain.obj) : error LNK2019: unresolved external
> symbol VerQueryValueW referenced in function "private: class
> clang::VersionTuple __cdecl
> clang::driver::toolchains::MSVCToolChain::getMSVCVersionFromExe(void)const "
> (?getMSVCVersionFromExe at MSVCToolChain@toolchains at driver@clang@@AEBA?AVVersionTuple at 4@XZ)
>
> These symbols are nominally available in mincore.lib, but not really; adding
> that to the link, produces an executable that won't run without an obscure
> DLL that is not present on many Windows machines, so it's necessary to avoid
> bringing them in, in the first place.
>
> clang.exe itself runs fine, which is presumably an existence proof that this
> is possible.
>
> Same problem arises with release build, and with a minimal library set
> instead of *.lib.
>
> What is the recommended way to solve this problem?
>
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>



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