Re: [boost] [clang] Windows toolset support?

Subject: Re: [boost] [clang] Windows toolset support?
From: Paul A. Bristow (pbristow_at_[hidden])
Date: 2012-11-06 10:32:19

> -----Original Message-----
> From: boost-bounces_at_[hidden] [mailto:boost-bounces_at_[hidden]] On Behalf Of Joshua
Boyce
> Sent: Monday, November 05, 2012 5:35 PM
> To: boost_at_[hidden]
> Subject: Re: [boost] [clang] Windows toolset support?
> 
> On Tue, Nov 6, 2012 at 4:16 AM, Paul A. Bristow <pbristow_at_[hidden]>wrote:
> 
> > > > Having got Ruben's mingw gcc binary to work nicely with NetBeans,
> > > > I
> > tried to use Ruben's Clang
> >  > > binary, but I haven't got this configured right yet.   Since NetBeans
> > provides a nice IDE on
> > > > Windows, I'm sure there will be lots of enthusiasm from Boosters
> > > > to be
> > able to use this
> > compiler.
> > >
> > > But I am now trying to build the Boost libraries using the mingw.
> > >
> > > After some googling, I've added
> > >
> > > #  Clang compiler using mingw32 dw2 Ruben's release.
> > > using clang
> > >   : 3.1
> > >   : "C:/mingw32-dw2/bin/clang++.exe"
> > >   : # <cxxflags>-std="c++11"
> > >     <cxxflags>-v # diagnostics
> > >     <cflags>-nostdinc # Do not include MSVC C headers.
> > >     <cxxflags>-nostdinc++ # Do not include MSVC C++ headers.
> > >     # Instead use mingw-dw2 for includes
> > >     <cxxflags>-cxx-include-arch="C:/mingw32-dw2/i686-w64-mingw32"
> > >     <cxxflags>-cxx-include-root="C:/mingw32-dw2/include/c++/4.6.3"
> > >     <cxxflags>-cxx-include-32bit-dir=32
> > >     <cxxflags>-stdlib=libc++
> > >     <linkflags>-stdlib=libc++
> > >   ;
> > >
> > >   # includes like <cstddef.h> are at
> > > C:\mingw32-dw2\include\c++\4.6.3
> > >
> > > to my user_config.jam with this results
> > >
> > >
> > > compile.c++.without-pth
> > >
> >
> >
i:\boost-trunk\boost\bin.v2\libs\test\build\clang-linux-3.1\debug\threading-multi\execution_monitor.
> > > obj
> > > clang version 3.1 (tags/RELEASE_31/final 161181)
> > (llvm/tags/RELEASE_31/final 161243)
> > > Target: i686-w64-mingw32
> > > Thread model: posix
> > >  "C:/mingw32-dw2/bin/clang++.exe"
> > > -cc1 -triple i686-w64-mingw32
> > > -S
> > > -disable-free -disable-llvm-verifier -main-file-name
> > > execution_monitor.cpp -mrelocation-model static -mdisable-fp-elim
> > > -mconstructor-aliases  -target-cpu pentium4 -target-linker-version
> > > 2.22.0.20120323 -momit-leaf-frame-pointer -v -g -coverage-file
> > C:/Users/Paul/AppData/Local/Temp/execution_monitor-
> > > 536331.s
> > > -nostdinc++
> > > -resource-dir "C:/mingw32-dw2/bin\\..\\lib\\clang\\3.1"
> > >  -D BOOST_ALL_NO_LIB=1 -D BOOST_TEST_DYN_LINK=1 -I .
> > >  -fmodule-cache-path
> > "C:\\Users\\Paul\\AppData\\Local\\Temp\\clang-module-cache"
> > > -stdlib=libc++
> > >  -O0 -Wall
> > >  -pedantic
> > > -fdeprecated-macro
> > > -fno-dwarf-directory-asm
> > >  -ferror-limit 19
> > > -fmessage-length 0
> > > -mstackrealign -fno-use-cxa-atexit -fno-inline -fgnu-runtime
> > -fobjc-runtime-has-arc
> > -fobjc-runtime-has-
> > > weak -fobjc-fragile-abi -fcxx-exceptions -fexceptions
> > -fdiagnostics-show-option -o
> > > C:/Users/Paul/AppData/Local/Temp/execution_monitor-536331.s
> > > -x c++ "libs\\test\\src\\execution_monitor.cpp"
> > > clang -cc1 version 3.1 based upon LLVM 3.1 default target
> > i686-w64-mingw32 ignoring nonexistent
> > > directory "/usr/local/include"
> > > ignoring nonexistent directory
> > > "C:/mingw32-dw2/bin/../lib/clang/3.1/../../../x86_64-w64-mingw32/include"
> > > ignoring nonexistent directory "/mingw/include"
> > > ignoring nonexistent directory "/usr/include"
> > > #include "..." search starts here:
> > > #include <...> search starts here:
> > >  .
> > >  C:/mingw32-dw2/bin/../lib/clang/3.1/include
> > >  C:/mingw32-dw2/bin/../lib/clang/3.1/../../../i686-w64-mingw32/include
> > >  C:/mingw32-dw2/bin/../lib/clang/3.1/../../../include
> > >  c:/mingw/include
> > > End of search list.
> > >
> > > In file included from libs\test\src\execution_monitor.cpp:16:
> > > In file included from .\boost/test/impl/execution_monitor.ipp:28:
> > > In file included from .\boost/test/detail/config.hpp:19:
> > > In file included from .\boost/config.hpp:40:
> > > .\boost/config/select_stdlib_config.hpp:18:12: fatal error: 'cstddef'
> > file not found #  include
> > <cstddef>
> > >            ^
> > > 1 error generated.
> >
> > Oops! Sorry pressed the send button too soon!
> >
> > I suspect I am not passing the right include info.
> >
> > "ignoring nonexistent directory
> > "C:/mingw32-dw2/bin/../lib/clang/3.1/../../../x86_64-w64-mingw32/include"
> >
> > suggests that my absolute address has not been interpreted as I expected.
> >
> > Suggestions most welcome.
> >
> > Paul
> >
> >
> This is how I use Clang on Windows:
> 
> user-config.jam / site-config.jam are both empty.
> 
> I define my own environmental variables (for convenience) for my various
> MinGW installations. For Clang, I use MINGW32_CLANG. And of course I define
> BOOST_ROOT to point to my Boost dir.
> 
> I build Boost using this batch file (after bootstrap):
> 
> > set OLDCD=%CD%
> > pushd %BOOST_ROOT%
> > set OLDPATH=%PATH%
> > set PATH=%MINGW32_CLANG%;%MINGW32_CLANG%\bin\;%PATH%
> > b2 -j %NUMBER_OF_PROCESSORS% toolset=clang cxxflags=-std=c++11
> > address-model=32 architecture=x86 --stagedir=stage/clang-x86 link=static
> > runtime-link=static threading=multi debug-symbols=on
> > define=WINVER=_WIN32_WINNT_VISTA define=_WIN32_WINNT=_WIN32_WINNT_VISTA
> > stage > %OLDCD%\clang32.txt
> > set PATH=%OLDPATH%
> > popd
> 
> 
> Notice that I add "%MINGW32_CLANG%;%MINGW32_CLANG%\bin\;" to my PATH. I
> found that to be the only real important step (I'm sure you could achieve
> the same thing with user-config, but I find this to be easier).
> 
> All I've done to 'install' Clang is extract both the GCC dw2 archive and
> the Clang archive to the same directory. Specifically, these two archives:
> http://sourceforge.net/projects/mingw-
> w64/files/Toolchains%20targetting%20Win32/Personal%20Builds/rubenvb/gcc-dw2-4.6-release/i686-
> w64-mingw32-gcc-dw2-4.6.3-1-release-win32_rubenvb.7z/download
> http://sourceforge.net/projects/mingw-
> w64/files/Toolchains%20targetting%20Win32/Personal%20Builds/rubenvb/clang-3.1-release/i686-w64-
> mingw32-clang-3.1-release-win32_rubenvb.7z/download
> 
> I do add some other command line args (a workaround for a couple of linker
> errors, and enabling some extra warnings) when actually building my
> projects which consume Boost, but for actually building the Boost libraries
> I think the process above is all that needs to be done... Perhaps you could
> try scrapping all your user-config stuff, because I've found it to be
> unnecessary.

For me Boost_root is boost-trunk

and I'm using the same Ruben's downloads I believe so I've

set MINGW32_CLANG=c:/mingw32-dw2

(And this download works OK with NetBeans - for hello world programs (I'll try building boost.test
on that IDE next).

I've clear out my user-config.jam for clang  and tried to use your command line thus

b2 -q -j %NUMBER_OF_PROCESSORS% toolset=clang cxxflags=-std=c++11 address-model=32 architecture=x86
--stagedir=stage/clang-x86 link=static runtime-link=static threading=multi debug-symbols=on
define=WINVER=_WIN32_WINNT_WIN7 define=_WIN32_WINNT=_WIN32_WINNT_WIN7 stage --with-test  >
build_dll_libs_trunk_test_JB_%date%_%tim%.log 2>&1

which looks the same to me as yours, but trying to compile Boost.test (which I presume you also did)
I get

compile.c++.without-pth
bin.v2\libs\test\build\clang-linux-3.1\debug\address-model-32\architecture-x86\link-static\runtime-l
ink-static\threading-multi\cpp_main.obj
In file included from libs\test\src\cpp_main.cpp:16:
In file included from .\boost/test/impl/cpp_main.ipp:20:
In file included from .\boost/test/execution_monitor.hpp:81:
In file included from .\boost/detail/fenv.hpp:69:
c:/mingw32-dw2/bin\..\lib\clang\3.1/../../../include/c++/4.6.3\fenv.h:57:11: error: no member named
'fenv_t' in the global namespace
  using ::fenv_t;
        ~~^
c:/mingw32-dw2/bin\..\lib\clang\3.1/../../../include/c++/4.6.3\fenv.h:58:11: error: no member named
'fexcept_t' in the global namespace
  using ::fexcept_t;
        ~~^

It was to overcome this that I added other options (and then I get problems finding cstddef.  But
I'm puzzled how your system works without - and how you don't seem to need to define tool clang?

Thanks for your help so far - I'm sure it will be *really* useful to get many people able to use
this compiler.

But any other suggestions?

Thanks

Paul