[cfe-dev] Clang on Windows targeting gcc requirements

Hurcan Solter hsolter at gmail.com
Sat Jul 4 14:33:20 PDT 2015 

Yes, upon further inspection, aforementioned patch explicitly adds the
directories in MinGW::AddClangCXXStdlibIncludeArgs()
which is distinctly different than mingw-builds.
With MSYS2 C++ include directories is kept in
/mingw64/include/c++/${gccver} whereas with mingw-builds
/mingw64/x86_64-w64-mingw32/include/c++
is where they are.

Old patch is removed from the MSYS2 packages and a new one is introduced
after this update but unfortunately it does not handle
the changes. ( I've added the maintainer of clang at MSYS2 in this
conversation).

MSYS2 is damn great and convenient to use. I'd very much like to see recent
version of clang is usable without problems again.








On Sat, Jul 4, 2015 at 6:40 PM, Yaron Keren <yaron.keren at gmail.com> wrote:

> Hi Hurcan,
>
> clang support the mingw-builds and mingw.org directory structure.
> With the msys2 build, the problem is the missing C++ include directories?
>
> Yaron
>
>
> 2015-07-04 16:41 GMT+03:00 Hurcan Solter <hsolter at gmail.com>:
>
>> I've used to build clang on MSYS2 with older version of this patch at
>> https://github.com/Alexpux/MINGW-packages/blob/master/mingw-w64-clang/clang-mingw-driver.patch
>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_Alexpux_MINGW-2Dpackages_blob_master_mingw-2Dw64-2Dclang_clang-2Dmingw-2Ddriver.patch&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=CnzuN65ENJ1H9py9XLiRvC_UQz6u3oG6GUNn7_wosSM&m=r3JtGknlg70px5yvRWhv1Zl7r4WNJKqtaJd9HISLW8E&s=Ix-0aW1nGYMxzuqzb9pdVofsl42YNYgvP3nfa6Vzf8E&e=>
>> and it served me well. this new patch not so much.Below the relevant dumps ;
>>
>> $ g++ -E -x c++ - -v < /dev/null
>> Using built-in specs.
>> COLLECT_GCC=C:\msys2_64\mingw64\bin\g++.exe
>> Target: x86_64-w64-mingw32
>> Configured with: ../gcc-4.9.2/configure --prefix=/mingw64
>> --with-local-prefix=/mingw64/local --build=x86_64-w64-mingw32
>> --host=x86_64-w64-mingw32 --target=x86_64-w64-mingw32
>> --with-native-system-header-dir=/mingw64/x86_64-w64-mingw32/include
>> --libexecdir=/mingw64/lib --with-gxx-include-dir=/mingw64/include/c++/4.9.2
>> --enable-bootstrap --with-arch=x86-64 --with-tune=generic
>> --enable-languages=c,lto,c++,objc,obj-c++,fortran,ada --enable-shared
>> --enable-static --enable-libatomic --enable-threads=posix --enable-graphite
>> --enable-fully-dynamic-string --enable-libstdcxx-time=yes
>> --disable-libstdcxx-pch --disable-libstdcxx-debug
>> --enable-cloog-backend=isl --enable-version-specific-runtime-libs
>> --disable-cloog-version-check --disable-isl-version-check --enable-lto
>> --enable-libgomp --disable-multilib --enable-checking=release
>> --disable-rpath --disable-win32-registry --disable-nls --disable-werror
>> --disable-symvers --with-libiconv --with-system-zlib --with-gmp=/mingw64
>> --with-mpfr=/mingw64 --with-mpc=/mingw64 --with-isl=/mingw64
>> --with-cloog=/mingw64 --with-pkgversion='Rev5, Built by MSYS2 project'
>> --with-bugurl=http://sourceforge.net/projects/msys2
>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__sourceforge.net_projects_msys2&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=CnzuN65ENJ1H9py9XLiRvC_UQz6u3oG6GUNn7_wosSM&m=r3JtGknlg70px5yvRWhv1Zl7r4WNJKqtaJd9HISLW8E&s=qxch1gn6dUS6rczZ8OX27JDQX2SAixXM5TJTJug9FhI&e=>
>> --with-gnu-as --with-gnu-ld
>> Thread model: posix
>> gcc version 4.9.2 (Rev5, Built by MSYS2 project)
>> COLLECT_GCC_OPTIONS='-E' '-v' '-shared-libgcc' '-mtune=generic'
>> '-march=x86-64'
>>  C:/msys2_64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/4.9.2/cc1plus.exe
>> -E -quiet -v -iprefix
>> C:/msys2_64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/4.9.2/ -D_REENTRANT -
>> -mtune=generic -march=x86-64
>> # 1 "<stdin>"
>> # 1 "<built-in>"
>> # 1 "<command-line>"
>> # 1 "<stdin>"
>> ignoring duplicate directory
>> "C:/msys2_64/mingw64/lib/gcc/../../lib/gcc/x86_64-w64-mingw32/4.9.2/include"
>> ignoring nonexistent directory "C:/msys64/mingw64/include"
>> ignoring nonexistent directory "/mingw64/include"
>> ignoring duplicate directory
>> "C:/msys2_64/mingw64/lib/gcc/../../lib/gcc/x86_64-w64-mingw32/4.9.2/include-fixed"
>> ignoring duplicate directory
>> "C:/msys2_64/mingw64/lib/gcc/../../lib/gcc/x86_64-w64-mingw32/4.9.2/../../../../x86_64-w64-mingw32/include"
>> ignoring nonexistent directory
>> "C:/msys64/mingw64/x86_64-w64-mingw32/include"
>> #include "..." search starts here:
>> #include <...> search starts here:
>>  C:/msys2_64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/4.9.2/include
>>
>>  C:/msys2_64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/4.9.2/../../../../include
>>  C:/msys2_64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/4.9.2/include-fixed
>>
>>  C:/msys2_64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/4.9.2/../../../../x86_64-w64-mingw32/include
>>  C:/msys2_64/mingw64/lib/gcc/../../include/c++/4.9.2
>>  C:/msys2_64/mingw64/lib/gcc/../../include/c++/4.9.2/x86_64-w64-mingw32
>>  C:/msys2_64/mingw64/lib/gcc/../../include/c++/4.9.2/backward
>>
>>
>> Built with the older MSYS2 patch ;
>> $ clang++ -E -x c++ - -v < /dev/null
>> clang version 3.7.0 (http://llvm.org/git/clang.git
>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__llvm.org_git_clang.git&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=CnzuN65ENJ1H9py9XLiRvC_UQz6u3oG6GUNn7_wosSM&m=r3JtGknlg70px5yvRWhv1Zl7r4WNJKqtaJd9HISLW8E&s=pPjfizf2zAebxGKdA0tfJNJMfhG4rOM7lwPnfPMa14Q&e=>
>> e7cee814a12b5dd16c8672543fd93efe741d5208) (http://llvm.org/git/llvm.git
>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__llvm.org_git_llvm.git&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=CnzuN65ENJ1H9py9XLiRvC_UQz6u3oG6GUNn7_wosSM&m=r3JtGknlg70px5yvRWhv1Zl7r4WNJKqtaJd9HISLW8E&s=nrLEvIb_FdlnMl1MALmnNd72UDSWQ11U46obfWTKRRA&e=>
>> d594ba081506f0f57e9801e3f81467b1766b1e04)
>> Target: x86_64-pc-windows-gnu
>> Thread model: posix
>>  "C:\\msys2_64\\mingw64\\bin\\clang++.exe" -cc1 -triple
>> x86_64-pc-windows-gnu -E -disable-free -disable-llvm-verifier
>> -main-file-name - -mrelocation-model pic -pic-level 2 -mthread-model posix
>> -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables
>> -target-cpu x86-64 -momit-leaf-frame-pointer -v -dwarf-column-info
>> -fno-unique-section-names -resource-dir
>> "C:\\msys2_64\\mingw64\\bin\\..\\lib\\clang\\3.7.0" -internal-isystem
>> "C:\\msys2_64\\mingw64\\bin/../include/c++/4.9.2" -internal-isystem
>> "C:\\msys2_64\\mingw64\\bin/../include/c++/4.9.2/x86_64-w64-mingw32"
>> -internal-isystem
>> "C:\\msys2_64\\mingw64\\bin/../include/c++/4.9.2/backward"
>> -internal-isystem
>> "C:\\msys2_64\\mingw64\\bin/../x86_64-w64-mingw32/include/c++"
>> -internal-isystem
>> "C:\\msys2_64\\mingw64\\bin/../x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32"
>> -internal-isystem
>> "C:\\msys2_64\\mingw64\\bin/../x86_64-w64-mingw32/include/c++/backward"
>> -internal-isystem
>> "C:\\msys2_64\\mingw64\\bin\\..\\lib\\clang\\3.7.0\\include"
>> -internal-isystem
>> "C:\\msys2_64\\mingw64\\bin/../x86_64-w64-mingw32/include"
>> -internal-isystem "C:\\msys2_64\\mingw64\\bin/../include"
>> -fdeprecated-macro -fdebug-compilation-dir "E:\\llvm\\buildmingw64\\bin"
>> -ferror-limit 19 -fmessage-length 0 -mstackrealign -fno-use-cxa-atexit
>> -fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option
>> -o - -x c++ -
>> clang -cc1 version 3.7.0 based upon LLVM 3.7.0svn default target
>> x86_64-pc-windows-gnu
>> ignoring nonexistent directory
>> "C:\msys2_64\mingw64\bin/../x86_64-w64-mingw32/include/c++"
>> ignoring nonexistent directory
>> "C:\msys2_64\mingw64\bin/../x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32"
>> ignoring nonexistent directory
>> "C:\msys2_64\mingw64\bin/../x86_64-w64-mingw32/include/c++/backward"
>> ignoring duplicate directory
>> "C:\msys2_64\mingw64\bin\..\lib\clang\3.7.0\include"
>> #include "..." search starts here:
>> #include <...> search starts here:
>>  C:\msys2_64\mingw64\bin/../include/c++/4.9.2
>>  C:\msys2_64\mingw64\bin/../include/c++/4.9.2/x86_64-w64-mingw32
>>  C:\msys2_64\mingw64\bin/../include/c++/4.9.2/backward
>>  C:\msys2_64\mingw64\bin\..\lib\clang\3.7.0\include
>>  C:\msys2_64\mingw64\bin/../x86_64-w64-mingw32/include
>>  C:\msys2_64\mingw64\bin/../include
>> End of search list.
>> New Patch
>> $ ./clang++ -E -x c++ - -v < /dev/null
>> clang version 3.7.0 (http://llvm.org/git/clang.git
>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__llvm.org_git_clang.git&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=CnzuN65ENJ1H9py9XLiRvC_UQz6u3oG6GUNn7_wosSM&m=r3JtGknlg70px5yvRWhv1Zl7r4WNJKqtaJd9HISLW8E&s=pPjfizf2zAebxGKdA0tfJNJMfhG4rOM7lwPnfPMa14Q&e=>
>> 0af047c817acbc67e61aa82f0b43a54d61b753f8) (http://llvm.org/git/llvm.git
>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__llvm.org_git_llvm.git&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=CnzuN65ENJ1H9py9XLiRvC_UQz6u3oG6GUNn7_wosSM&m=r3JtGknlg70px5yvRWhv1Zl7r4WNJKqtaJd9HISLW8E&s=nrLEvIb_FdlnMl1MALmnNd72UDSWQ11U46obfWTKRRA&e=>
>> 9a9ee6f550c0789053c260203aea8430a34554fe)
>> Target: x86_64-pc-windows-gnu
>> Thread model: posix
>>  "E:\\llvm\\buildmingw64\\bin\\clang++.exe" -cc1 -triple
>> x86_64-pc-windows-gnu -E -disable-free -disable-llvm-verifier
>> -main-file-name - -mrelocation-model pic -pic-level 2 -mthread-model posix
>> -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables
>> -target-cpu x86-64 -momit-leaf-frame-pointer -v -dwarf-column-info
>> -resource-dir "E:\\llvm\\buildmingw64\\bin\\..\\lib\\clang\\3.7.0"
>> -internal-isystem "C:\\msys2_64\\mingw64\\x86_64-w64-mingw32\\include\\c++"
>> -internal-isystem
>> "C:\\msys2_64\\mingw64\\x86_64-w64-mingw32\\include\\c++\\x86_64-w64-mingw32\\"
>> -internal-isystem
>> "C:\\msys2_64\\mingw64\\x86_64-w64-mingw32\\include\\c++\\backward"
>> -internal-isystem
>> "C:\\msys2_64\\mingw64\\lib\\gcc\\x86_64-w64-mingw32\\4.9.2\\include\\c++"
>> -internal-isystem
>> "C:\\msys2_64\\mingw64\\lib\\gcc\\x86_64-w64-mingw32\\4.9.2\\include\\c++\\x86_64-w64-mingw32\\"
>> -internal-isystem
>> "C:\\msys2_64\\mingw64\\lib\\gcc\\x86_64-w64-mingw32\\4.9.2\\include\\c++\\backward"
>> -internal-isystem
>> "E:\\llvm\\buildmingw64\\bin\\..\\lib\\clang\\3.7.0\\include"
>> -internal-isystem
>> "C:\\msys2_64\\mingw64\\lib\\gcc\\x86_64-w64-mingw32\\4.9.2\\include"
>> -internal-isystem
>> "C:\\msys2_64\\mingw64\\lib\\gcc\\x86_64-w64-mingw32\\4.9.2\\include-fixed"
>> -internal-isystem "C:\\msys2_64\\mingw64\\x86_64-w64-mingw32\\include"
>> -internal-isystem "C:\\msys2_64\\mingw64\\include" -fdeprecated-macro
>> -fdebug-compilation-dir "E:\\llvm\\buildmingw64\\bin" -ferror-limit 19
>> -fmessage-length 0 -mstackrealign -fno-use-cxa-atexit -fobjc-runtime=gcc
>> -fcxx-exceptions -fexceptions -fdiagnostics-show-option -o - -x c++ -
>> clang -cc1 version 3.7.0 based upon LLVM 3.7.0svn default target
>> x86_64-pc-windows-gnu
>> ignoring nonexistent directory
>> "C:\msys2_64\mingw64\x86_64-w64-mingw32\include\c++"
>> ignoring nonexistent directory
>> "C:\msys2_64\mingw64\x86_64-w64-mingw32\include\c++\x86_64-w64-mingw32\"
>> ignoring nonexistent directory
>> "C:\msys2_64\mingw64\x86_64-w64-mingw32\include\c++\backward"
>> ignoring nonexistent directory
>> "C:\msys2_64\mingw64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++"
>> ignoring nonexistent directory
>> "C:\msys2_64\mingw64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++\x86_64-w64-mingw32\"
>> ignoring nonexistent directory
>> "C:\msys2_64\mingw64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++\backward"
>> #include "..." search starts here:
>> #include <...> search starts here:
>>  E:\llvm\buildmingw64\bin\..\lib\clang\3.7.0\include
>>  C:\msys2_64\mingw64\lib\gcc\x86_64-w64-mingw32\4.9.2\include
>>  C:\msys2_64\mingw64\lib\gcc\x86_64-w64-mingw32\4.9.2\include-fixed
>>  C:\msys2_64\mingw64\x86_64-w64-mingw32\include
>>  C:\msys2_64\mingw64\include
>> End of search list.
>>
>> I assume this patch only meant to fix the official mingw-builds?
>>
>>
>> _______________________________________________
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>
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