[cfe-dev] Prebuilt clang for Windows versions versus versions built with the latest source

Nikola Smiljanic via cfe-dev cfe-dev at lists.llvm.org
Sun Sep 6 18:46:51 PDT 2015

Here's the script +Hans uses to build so you can compare.

On Mon, Sep 7, 2015 at 11:33 AM, Edward Diener via cfe-dev <
cfe-dev at lists.llvm.org> wrote:

> If I look at pre-built version of clang for Windows I notice that there
> are no dependencies on any C++ implementation DLLs but only on the common
> lower level Windows DLLs kernel32.dll, shell32.dll, and advapi32.dll, which
> are all in the windows/system32 directory. This appears pretty nice.
> If I build clang from source using some version of mingw-64/gcc as the
> compiler and CMake/Ninja as the build system I end up with a clang which
> has dependencies on the above mentioned lower level Windows DLLs and
> msvcrt.dll in the windows/system32 directory, as well as libstdc++6.dll and
> on whatever other DLL represents the exceptional model for that version of
> mingw-64/gcc in a mingw-64/gcc bin directory. If I build a 32-bit version
> of clang with mingw-64/gcc 32-bit supporting the dwarf exception model
> clang has a dependency on LIBGCC_S_DW2-1.DLL. If I build a 64-bit version
> of clang with mingw-64/gcc 64-bit supporting the seh exception model clang
> has a dependency on LIBGCC_S_SEH-1.DLL.
> Why is there this discrepancy between the pre-built versions and the
> 32-bit and 64-bit versions of clang which I build ?
> Or better yet, with what is the clang pre-built versions being built so
> that it has no dependencies on any compiler implementation DLL ?
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