[cfe-dev] Failure building x86_64-w64-mingw32 triplet of clang on Windows

[Edward Diener via cfe-dev]

I was successful building a 32-bit version clang from source on Windows 
using gcc-5.3. When I try to build a 64-bit version of clang on Windows 
with the triplet x86_64-w64-mingw32 and the 64-bit version of gcc-5.3 I 
get as an error:

> [482/563] Linking CXX executable bin\c-index-test.exe
> FAILED: bin/c-index-test.exe
> cmd.exe /C "cd . && C:\utilities\mingw-w64\x86_64-5.3.0-posix-seh-rt_v4-rev0\min
> gw64\bin\c++.exe  -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wn
> o-missing-field-initializers -pedantic -Wno-long-long -Wno-maybe-uninitialized -
> Wdelete-non-virtual-dtor -Wno-comment -Werror=date-time -std=gnu++11 -fno-common
>  -Woverloaded-virtual -fno-strict-aliasing  -O2   tools/clang/tools/c-index-test
> /CMakeFiles/c-index-test.dir/c-index-test.c.obj tools/clang/tools/c-index-test/C
> MakeFiles/c-index-test.dir/core_main.cpp.obj  -o bin\c-index-test.exe -Wl,--out-
> implib,lib\libc-index-test.dll.a -Wl,--major-image-version,0,--minor-image-versi
> on,0  lib/libLLVMSupport.a lib/liblibclang.dll.a lib/libclangAST.a lib/libclangB
> asic.a lib/libclangFrontend.a lib/libclangIndex.a C:/utilities/libxml/lib/libxml
> 2.lib lib/libclangFrontend.a lib/libclangDriver.a -lversion lib/libclangParse.a
> lib/libLLVMMCParser.a lib/libclangSerialization.a lib/libclangSema.a lib/libclan
> gEdit.a lib/libclangAnalysis.a lib/libLLVMBitReader.a lib/libLLVMOption.a lib/li
> bLLVMProfileData.a lib/libclangFormat.a lib/libclangToolingCore.a lib/libclangAS
> T.a lib/libclangRewrite.a lib/libclangLex.a lib/libclangBasic.a lib/libLLVMCore.
> a lib/libLLVMMC.a lib/libLLVMSupport.a -lpsapi -lshell32 -lole32 -luuid -lkernel
> 32 -luser32 -lgdi32 -lwinspool -lshell32 -lole32 -loleaut32 -luuid -lcomdlg32 -l
> advapi32 && cd ."
> tools/clang/tools/c-index-test/CMakeFiles/c-index-test.dir/c-index-test.c.obj:c-
> index-test.c:(.text+0x3066): undefined reference to `xmlRelaxNGNewParserCtxt'
> tools/clang/tools/c-index-test/CMakeFiles/c-index-test.dir/c-index-test.c.obj:c-
> index-test.c:(.text+0x307a): undefined reference to `xmlRelaxNGParse'
> tools/clang/tools/c-index-test/CMakeFiles/c-index-test.dir/c-index-test.c.obj:c-
> index-test.c:(.text+0x3085): undefined reference to `xmlParseDoc'
> tools/clang/tools/c-index-test/CMakeFiles/c-index-test.dir/c-index-test.c.obj:c-
> index-test.c:(.text+0x3099): undefined reference to `xmlRelaxNGNewValidCtxt'
> tools/clang/tools/c-index-test/CMakeFiles/c-index-test.dir/c-index-test.c.obj:c-
> index-test.c:(.text+0x30a7): undefined reference to `xmlRelaxNGValidateDoc'
> tools/clang/tools/c-index-test/CMakeFiles/c-index-test.dir/c-index-test.c.obj:c-
> index-test.c:(.text+0x30bb): undefined reference to `xmlGetLastError'
> tools/clang/tools/c-index-test/CMakeFiles/c-index-test.dir/c-index-test.c.obj:c-
> index-test.c:(.text+0x30d3): undefined reference to `xmlRelaxNGFreeValidCtxt'
> tools/clang/tools/c-index-test/CMakeFiles/c-index-test.dir/c-index-test.c.obj:c-
> index-test.c:(.text+0x30db): undefined reference to `xmlFreeDoc'
> tools/clang/tools/c-index-test/CMakeFiles/c-index-test.dir/c-index-test.c.obj:c-
> index-test.c:(.text+0x30e3): undefined reference to `xmlRelaxNGFree'
> tools/clang/tools/c-index-test/CMakeFiles/c-index-test.dir/c-index-test.c.obj:c-
> index-test.c:(.text+0x30eb): undefined reference to `xmlRelaxNGFreeParserCtxt'
> tools/clang/tools/c-index-test/CMakeFiles/c-index-test.dir/c-index-test.c.obj:c-
> index-test.c:(.text+0x3452): undefined reference to `xmlGetLastError'
> tools/clang/tools/c-index-test/CMakeFiles/c-index-test.dir/c-index-test.c.obj:c-
> index-test.c:(.text.startup+0x23): undefined reference to `xmlCheckVersion'
> collect2.exe: error: ld returned 1 exit status

Anyone know what I have to do to correct this problem ?

I use CMake, ninja, and mingw-64/gcc-5.3. I have not downloaded the 
optional 'extra' and 'compiler-rt' projects as part of LLVM on Windows.